fzus53 kapx 182205
nshapx
expires:202605190615;;790071

nearshore marine forecast
national weather service gaylord mi
605 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz322-190615-
st. marys river point iroquois to e. potagannissing bay-
605 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.overnight...southeast wind 10 to 15 knots. scattered showers
early in the evening, then isolated showers and thunderstorms
early in the evening. scattered showers and thunderstorms after
midnight. 
.tuesday...southwest wind 15 to 20 knots. numerous showers and
isolated thunderstorms. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy. 
.wednesday...northwest wind 15 to 20 knots. mostly sunny. 

winds higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775275

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lhz345-190115-
straits of mackinac within 5 nm of mackinac bridge including
mackinac island-
104 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...west wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 feet or less. 
.tonight...southeast wind 10 to 15 knots. scattered showers and
isolated thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 15 to 25 knots. scattered showers.
waves 2 to 4 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy.
waves 2 to 3 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775276

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lhz346-190115-
st ignace to false detour channel-
104 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...south wind 10 to 15 knots becoming
southwest early in the evening. scattered showers and
thunderstorms. waves 2 to 3 feet. 
.tonight...southeast wind 10 to 15 knots. scattered showers and
thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 15 to 25 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves 3 to 5 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775277

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lhz347-190115-
5nm east of mackinac bridge to presque isle light mi including
bois blanc island-
104 pm edt mon may 18 2026

...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...west wind 10 to 15 knots becoming south
5 to 10 knots early in the evening. numerous showers and
scattered thunderstorms. waves 2 feet or less. 
.tonight...south wind 10 to 15 knots. scattered showers and
isolated thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 10 to 20 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves 4 to 7 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775278

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lhz348-190115-
presque isle light to sturgeon pt mi including thunder bay
national marine sanctuary-
104 pm edt mon may 18 2026

...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...south wind 10 to 15 knots. numerous
showers and scattered thunderstorms. waves 3 to 5 feet. 
.tonight...south wind 10 to 15 knots. scattered showers and
isolated thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 10 to 20 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves 4 to 7 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775279

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lhz349-190115-
sturgeon pt to alabaster mi-
104 pm edt mon may 18 2026

...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...south wind 10 to 15 knots. scattered
showers and thunderstorms. waves 2 to 4 feet. 
.tonight...south wind 10 to 20 knots. scattered showers and
isolated thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 25 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy.
waves 2 to 4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775271

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz323-190115-
grand traverse bay south of a line grand traverse light to
norwood mi-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.rest of the afternoon...southwest wind 10 to 15 knots. isolated
showers and thunderstorms. waves 2 feet or less. 
.tonight...south wind 15 to 20 knots. scattered showers and
isolated thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 10 to 20 knots. scattered showers.
waves 2 to 4 feet. 
.tuesday night...north wind 10 to 20 knots. mostly cloudy. waves
2 to 3 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775269

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz341-190115-
seul choix point to 5nm west of mackinac bridge-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.rest of the afternoon...south wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 to 3 feet. 
.tonight...south wind 15 to 20 knots. scattered showers and
thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 25 knots. scattered showers.
waves 4 to 6 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy.
waves 2 to 4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775270

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz342-190115-
norwood mi to 5nm west of mackinac bridge including little
traverse bay-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.rest of the afternoon...southwest wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 to 3 feet. 
.tonight...south wind 15 to 20 knots. scattered showers and
isolated thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 15 to 25 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy.
waves 2 to 4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775273

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz344-190115-
sleeping bear point to grand traverse light mi-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.rest of the afternoon...southwest wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 to 3 feet. 
.tonight...south wind 10 to 20 knots. numerous showers and
scattered thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 10 to 20 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...north wind 10 to 15 knots. mostly cloudy. waves
2 to 3 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775272

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz345-190115-
point betsie to sleeping bear point mi-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.rest of the afternoon...southwest wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots. numerous showers and
scattered thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 20 knots. scattered showers.
waves 3 to 5 feet. 
.tuesday night...north wind 10 to 15 knots. mostly cloudy. waves
2 to 4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775274

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz346-190115-
manistee to point betsie mi-
104 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.rest of the afternoon...southwest wind 10 to 15 knots. scattered
showers and isolated thunderstorms. waves 2 to 4 feet. 
.tonight...south wind 10 to 20 knots. scattered showers and
thunderstorms. waves 3 to 5 feet. 
.tuesday...southwest wind 10 to 20 knots. scattered showers.
waves 4 to 6 feet. 
.tuesday night...north wind 10 to 15 knots. mostly cloudy. waves
2 to 4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181704
nshapx
expires:202605190115;;775267

nearshore marine forecast
national weather service gaylord mi
104 pm edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz321-190115-
whitefish bay (u.s. portion)/whitefish point to point iroquois mi-
104 pm edt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.rest of the afternoon...southwest wind 5 to 10 knots becoming
northwest early in the evening. isolated showers and
thunderstorms. waves 2 feet or less. 
.tonight...southeast wind 10 to 15 knots. numerous showers and
scattered thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 15 to 25 knots. numerous showers. waves
4 to 7 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves 5 to 8 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 181446
nshapx
expires:202605182300;;770406

nearshore marine forecast
national weather service gaylord mi
1046 am edt mon may 18 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lmz344-345-182300-
sleeping bear point to grand traverse light mi-
point betsie to sleeping bear point mi-
1046 am edt mon may 18 2026

...small craft advisory in effect until 8 pm edt this evening...

.today...southwest wind 15 to 20 knots. gusts to 25 knots. chance
of showers and slight chance of thunderstorms. waves 2 to 4 feet.
.tonight...south wind 15 to 20 knots. rain showers likely and a
chance of thunderstorms. waves 3 to 5 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
waves 4 to 7 feet. 
.tuesday night...northwest wind 10 to 15 knots. mostly cloudy.
waves 3 to 5 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus51 kbuf 182003
nshbuf
expires:202605190300;;785146

nearshore marine forecast
national weather service buffalo ny
403 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez020-loz030-190300-
upper niagara river and buffalo harbor-lower niagara river-
403 pm edt mon may 18 2026

.tonight...southwest winds 5 to 10 knots. a chance of showers
late. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. partly to mostly sunny. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms. 
.wednesday...northwest winds 5 to 10 knots. showers in the
morning. 
.wednesday night...northwest winds 10 knots or less becoming
north. partly cloudy. 
.thursday...northeast winds 10 knots or less becoming east.
partly cloudy. 
.friday...east winds 5 to 15 knots. showers likely friday night. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
likely during the day, then a chance of showers saturday night. 

winds and waves higher in and near thunderstorms.

the water temperature off buffalo is 52 degrees.

$$

fzus51 kbuf 182003
nshbuf
expires:202605190300;;785150

nearshore marine forecast
national weather service buffalo ny
403 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


loz045-190300-
mexico bay to the saint lawrence river along lake ontario-
403 pm edt mon may 18 2026

.tonight...south winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms. a chance of showers late. waves
2 feet or less. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers in
the morning. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. showers with a chance of thunderstorms in the
evening, then showers overnight. waves 1 to 3 feet building to
2 to 4 feet. 
.wednesday...west winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely in the morning. waves 2 to 4 feet
building to 3 to 6 feet. waves occasionally around 7 feet. 
.wednesday night...west winds 15 to 20 knots becoming north 10 to
15 knots. partly cloudy. waves 3 to 6 feet subsiding to 1 to
3 feet. waves occasionally around 7 feet. 
.thursday...north winds 10 to 15 knots becoming light and
variable. mainly clear, then becoming partly cloudy. waves 2 feet
or less. 
.friday...east winds 10 knots or less. a chance of showers friday
night. waves 1 foot or less. 
.saturday...southeast winds 10 to 15 knots. showers likely. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus51 kbuf 182003
nshbuf
expires:202605190300;;785149

nearshore marine forecast
national weather service buffalo ny
403 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


loz043-044-190300-
hamlin beach to mexico bay along lake ontario
including irondequoit bay-
403 pm edt mon may 18 2026

.tonight...south winds 5 to 10 knots becoming southwest. a chance
of showers. waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. partly to mostly sunny. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming west
15 to 20 knots. showers likely with a chance of thunderstorms in
the evening, then showers likely overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots. a chance of showers in
the morning. waves 2 to 4 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.wednesday night...west winds 15 to 20 knots becoming north 10 to
15 knots. partly cloudy. waves 4 to 7 feet subsiding to 2 to
4 feet. waves occasionally around 9 feet. 
.thursday...north winds 5 to 15 knots becoming east less than
10 knots. partly cloudy. waves 1 to 3 feet subsiding to 1 foot or
less. 
.friday...east winds 5 to 15 knots. a chance of showers friday
night. waves 2 feet or less. 
.saturday...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely. waves 2 to 4 feet subsiding to 1 to
3 feet. 

winds and waves higher in and near thunderstorms.

the water temperature off rochester is 49 degrees.

$$

fzus51 kbuf 182003
nshbuf
expires:202605190300;;785148

nearshore marine forecast
national weather service buffalo ny
403 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


loz042-190300-
niagara river to hamlin beach along lake ontario-
403 pm edt mon may 18 2026

.tonight...southwest winds 10 to 15 knots. a chance of showers
late. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. partly to mostly sunny. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers likely overnight. waves 3 to 5 feet subsiding to 2 to
4 feet. waves occasionally around 6 feet. 
.wednesday...west winds 15 to 20 knots. showers likely in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 5 to 15 knots becoming north.
partly cloudy. waves 1 to 3 feet. 
.thursday...northeast winds 10 knots or less becoming east.
partly cloudy. waves 2 feet or less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
showers likely friday night. waves 1 to 3 feet. 
.saturday...east winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely during the day, then a chance of showers
saturday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus51 kbuf 182003
nshbuf
expires:202605190300;;785147

nearshore marine forecast
national weather service buffalo ny
403 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez040-041-190300-
buffalo to ripley along lake erie-
403 pm edt mon may 18 2026

.tonight...southwest winds 5 to 10 knots. partly cloudy this
evening, then becoming mostly cloudy. waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers in
the afternoon. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots. showers in the morning.
waves 1 to 3 feet. 
.wednesday night...northwest winds 5 to 10 knots becoming
northeast. partly to mostly cloudy. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming east. partly
cloudy. waves 2 feet or less. 
.friday...east winds 5 to 15 knots. a chance of showers during
the day, then showers likely friday night. waves 1 foot or less. 
.saturday...southeast winds 5 to 15 knots. showers likely with a
chance of thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus51 kcle 181939
nshcle
expires:202605190215;;784133

nearshore marine forecast
national weather service cleveland oh
339 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez145>147-190215-
vermilion to avon point oh-avon point to willowick oh-
willowick to geneva-on-the lake oh-
339 pm edt mon may 18 2026

.tonight...southwest winds 5 to 15 knots becoming south. a chance
of showers and thunderstorms this evening, then a slight chance
of showers and thunderstorms after midnight. waves 2 feet or
less. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a slight chance of showers in the morning, then a
chance of showers and thunderstorms in the afternoon. waves 1 to
3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers with a chance of thunderstorms.
waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots. showers likely in the
morning. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for thursday through saturday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 56 degrees.

$$

fzus51 kcle 181939
nshcle
expires:202605190215;;784134

nearshore marine forecast
national weather service cleveland oh
339 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez148-149-190215-
geneva-on-the-lake to conneaut oh-conneaut oh to ripley ny-
339 pm edt mon may 18 2026

.tonight...southwest winds 5 to 10 knots becoming south. a slight
chance of showers and thunderstorms. a slight chance of showers
late. waves 1 foot or less. 
.tuesday...south winds 10 to 15 knots becoming southwest. a
chance of showers in the morning, then a slight chance of showers
and thunderstorms in the afternoon. waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots. showers likely in the
morning. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for thursday through saturday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 56 degrees.

$$

fzus51 kcle 181939
nshcle
expires:202605190215;;784131

nearshore marine forecast
national weather service cleveland oh
339 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez144-190215-
the islands to vermilion oh-
339 pm edt mon may 18 2026

.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms this evening,
then a slight chance of showers after midnight. waves 2 feet or
less. 
.tuesday...south winds 15 to 20 knots becoming southwest. a
chance of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers with a chance of thunderstorms.
waves 1 to 3 feet. 
.wednesday...northeast winds 10 to 15 knots. showers likely in
the morning. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for thursday through saturday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 56 degrees.

$$

fzus51 kcle 181939
nshcle
expires:202605190215;;784132

nearshore marine forecast
national weather service cleveland oh
339 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez142-143-190215-
maumee bay to reno beach oh-reno beach to the islands oh-
339 pm edt mon may 18 2026

...severe thunderstorm watch 223 in effect until 9 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely with a chance of thunderstorms this
evening, then a slight chance of showers and thunderstorms after
midnight. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers with a slight chance of
thunderstorms in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming
northwest 10 to 15 knots. showers likely with a chance of
thunderstorms. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming northeast. a
chance of showers in the morning. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for thursday through saturday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 56 degrees.

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786988

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz148-190400-
oak point to saxon harbor wi-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 3 feet
building to 5 to 8 feet. waves occasionally to 10 feet. 
.tuesday...northwest wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots in the afternoon. chance
of rain showers in the morning. chance of sprinkles in the
afternoon. waves 2 to 4 feet. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 3 feet. 
.wednesday...northwest wind 5 knots becoming north late in the
morning, then becoming east in the afternoon. sunny. waves 1 foot
or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786987

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz121-190400-
chequamegon bay-bayfield to oak point wi-
343 pm cdt mon may 18 2026

.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots in
the late evening and overnight. rain showers likely in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 2 feet. 
.tuesday...northwest wind 5 to 10 knots becoming west 10 to
15 knots with gusts to around 20 knots in the late morning and
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 1 foot or less. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 foot or less. 
.wednesday...northwest wind 5 knots becoming east in the
afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786978

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz140-190400-
grand portage to grand marais mn-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.tonight...northeast wind 15 to 20 knots. gusts up to 20 knots
increasing to 25 knots late in the evening, then increasing to
30 knots after midnight decreasing to 25 knots late in the night.
slight chance of rain showers in the evening. slight chance of
thunderstorms through the night. rain showers after midnight.
waves 1 to 2 feet building to 2 to 4 feet in the late evening and
overnight. 
.tuesday...northwest wind 10 to 15 knots with gusts to around
25 knots easing to 5 to 10 knots with gusts to around 20 knots in
the afternoon. chance of rain showers in the morning. waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon. 
.tuesday night...northwest wind 10 to 15 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 
.wednesday...northwest wind 5 to 10 knots becoming south 10 to
15 knots with gusts to around 20 knots in the afternoon. sunny.
waves 1 to 2 feet. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786979

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz141-190400-
grand marais to taconite harbor mn-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. chance
of rain showers in the evening. slight chance of thunderstorms
through the night. rain showers after midnight. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 
.tuesday...northwest wind 5 to 10 knots. gusts up to 20 knots in
the afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 1 to 3 feet subsiding to 1 to
2 feet in the late morning and afternoon. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 
.wednesday...west wind 5 knots becoming south in the afternoon.
sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786980

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz142-190400-
taconite harbor to silver bay harbor mn-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots after midnight. chance of rain showers in
the evening. slight chance of thunderstorms through the night.
rain showers after midnight. waves 1 to 2 feet building to 2 to
4 feet after midnight. 
.tuesday...west wind 5 to 10 knots. gusts up to 20 knots in the
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the afternoon. 
.tuesday night...northwest wind 5 to 10 knots. gusts up to
20 knots early in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 
.wednesday...northwest wind 5 knots becoming west late in the
morning, then becoming south in the afternoon. sunny. waves
1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786981

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz143-190400-
silver bay harbor to two harbors mn-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 9 pm cdt this evening
through tuesday afternoon...

.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
late in the evening increasing to 25 knots, then decreasing to
20 knots late in the night. chance of rain showers in the
evening. chance of thunderstorms through the night. rain showers
after midnight. waves 1 to 2 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 5 to 10 knots. gusts up to 20 knots in the
afternoon. chance of rain showers in the morning. chance of
sprinkles in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the afternoon. 
.tuesday night...northwest wind 5 to 10 knots. mostly cloudy in
the evening then clearing. waves 1 to 2 feet. 
.wednesday...northwest wind 5 knots becoming southeast in the
afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786982

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz144-190400-
two harbors to duluth mn-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
increasing to 25 knots after midnight, then decreasing to
20 knots late in the night. rain showers likely in the evening.
chance of thunderstorms through the night. rain showers after
midnight. waves 1 to 2 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 10 to 15 knots. gusts up to 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots easing to 5 knots after midnight. mostly cloudy
in the evening then clearing. waves 1 to 2 feet. 
.wednesday...west wind 5 knots becoming southeast in the
afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786983

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz145-190400-
duluth mn to port wing wi-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
late in the evening increasing to 25 knots, then decreasing to
20 knots late in the night. rain showers likely in the evening.
chance of thunderstorms through the night. rain showers after
midnight. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.tuesday...west wind 10 to 15 knots. gusts up to 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the
afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots becoming west 5 knots after midnight. mostly
cloudy in the evening then becoming partly cloudy. waves 1 to
2 feet. 
.wednesday...west wind 5 knots becoming southeast in the
afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786984

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz146-190400-
port wing to sand island wi-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.tonight...northeast wind 10 to 15 knots easing to 10 knots late
in the night. gusts up to 20 knots late in the evening increasing
to 25 knots, then decreasing to 20 knots late in the night. rain
showers likely in the evening. chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 2 feet
building to 3 to 5 feet after midnight. 
.tuesday...northwest wind 5 to 10 knots becoming west with gusts
to around 20 knots in the late morning and afternoon. chance of
rain showers in the morning. chance of sprinkles in the
afternoon. waves 2 to 4 feet. 
.tuesday night...west wind 5 to 10 knots. mostly cloudy in the
evening then clearing. waves 1 to 2 feet. 
.wednesday...west wind 5 knots early in the morning becoming
variable 10 knots or less, then becoming southeast 5 knots late
in the afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdlh 182043
nshdlh
expires:202605190400;;786985

nearshore marine forecast
national weather service duluth mn
343 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake superior.         

waves are the significant wave height - the average of the highest 
1/3 of the wave spectrum. occasional wave height is the average of 
the highest 1/10 of the wave spectrum.


lsz147-190400-
sand island to bayfield wi-
343 pm cdt mon may 18 2026

...small craft advisory in effect from 11 pm cdt this evening
through tuesday morning...

.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 2 feet
building to 3 to 5 feet after midnight. 
.tuesday...north wind 5 to 10 knots becoming west with gusts to
around 20 knots in the late morning and afternoon. chance of rain
showers in the morning. chance of sprinkles in the afternoon.
waves 2 to 4 feet. 
.tuesday night...northwest wind 5 to 10 knots. mostly cloudy in
the evening then becoming partly cloudy. waves 1 to 3 feet. 
.wednesday...northwest wind 5 knots becoming southeast in the
afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783322

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz441-190330-
port austin to harbor beach mi-
320 pm edt mon may 18 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. light showers and a chance of
thunderstorms in the evening, then partly cloudy with a chance of
showers and a slight chance of thunderstorms after midnight.
waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots with gusts to 30 knots in the late morning and
afternoon. partly cloudy until late afternoon becoming mostly
sunny. a slight chance of thunderstorms early in the morning. a
chance of showers until late afternoon, then showers likely and a
chance of thunderstorms early in the afternoon. waves 2 to 4 feet
building to 3 to 5 feet in the late morning and afternoon. waves
occasionally around 7 feet. 
.tuesday night...west winds 15 to 20 knots veering to the north
in the late evening and early morning, then becoming northwest
10 to 15 knots after midnight. partly cloudy becoming cloudy in
the late evening and early morning becoming partly cloudy. a
chance of showers and thunderstorms early in the evening, then a
chance of showers in the late evening and early morning. waves
3 to 5 feet. waves occasionally around 7 feet. 
.wednesday...north winds 10 to 15 knots. partly cloudy early in
the morning then clearing. waves 3 to 5 feet. waves occasionally
around 7 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783325

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lez444-190330-
michigan waters of lake erie from detroit river to north cape mi-
320 pm edt mon may 18 2026

...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. mostly cloudy with
showers likely and a chance of thunderstorms in the evening, then
partly cloudy with a chance of showers and a slight chance of
thunderstorms after midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. partly cloudy. a
chance of showers and a slight chance of thunderstorms early in
the morning. a chance of showers and thunderstorms early in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet early in the
afternoon. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and early morning, then
veering to the northwest after midnight. rain showers early in
the evening. a chance of thunderstorms until early morning. a
chance of showers in the late evening and overnight. waves 1 to
3 feet. 
.wednesday...north winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and afternoon. partly cloudy. a
chance of showers early in the morning. waves 2 feet or less. 

see lake erie open lake forecast for days 3 through 5.

the water temperature at belle isle is missing.

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783321

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz421-190330-
outer saginaw bay sw of alabaster to port austin mi to inner
saginaw bay-
320 pm edt mon may 18 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots. mostly cloudy. light
showers likely and a chance of thunderstorms in the evening, then
a chance of showers after midnight. waves 2 to 4 feet. 
.tuesday...southwest winds 20 to 25 knots with gusts to 30 knots.
mostly cloudy early in the morning becoming partly cloudy. a
slight chance of thunderstorms early in the morning. a chance of
showers until late afternoon, then showers likely and a slight
chance of thunderstorms early in the afternoon. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tuesday night...southwest winds 20 to 25 knots becoming
northwest 15 to 20 knots in the late evening and overnight.
partly cloudy becoming mostly cloudy in the late evening and
early morning becoming partly cloudy. a chance of showers and
thunderstorms early in the evening. waves 4 to 6 feet subsiding
to 2 to 4 feet after midnight. waves occasionally around 8 feet. 
.wednesday...northwest winds 15 to 20 knots becoming north 10 to
15 knots in the late morning and early afternoon, then becoming
northeast 15 to 20 knots early in the afternoon. partly cloudy
early in the morning then clearing. waves 2 to 4 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783324

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz443-190330-
port sanilac to port huron mi-
320 pm edt mon may 18 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots becoming south 10 to
15 knots after midnight. mostly cloudy with showers likely and a
chance of thunderstorms in the evening, then partly cloudy with a
chance of showers and a slight chance of thunderstorms after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight. 
.tuesday...south winds 15 to 20 knots becoming southwest 20 to
25 knots early in the afternoon. partly cloudy. a slight chance
of thunderstorms in the morning. a chance of showers. a chance of
thunderstorms in the afternoon. waves 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
north after midnight. partly cloudy early in the evening becoming
mostly cloudy. a chance of showers and thunderstorms until early
morning. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.wednesday...north winds 15 to 20 knots. partly cloudy until late
afternoon becoming mostly sunny. waves 2 to 4 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783323

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz442-190330-
harbor beach to port sanilac mi-
320 pm edt mon may 18 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots becoming south 10 to
15 knots in the late evening and overnight. mostly cloudy with
showers likely and a chance of thunderstorms in the evening, then
partly cloudy with a chance of showers and a slight chance of
thunderstorms after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.tuesday...southwest winds 15 to 20 knots. gusts to 30 knots in
the late morning and afternoon. mostly cloudy early in the
morning becoming partly cloudy. a chance of showers and a slight
chance of thunderstorms until late afternoon, then showers likely
and a chance of thunderstorms early in the afternoon. waves 2 to
4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering to the
northwest in the late evening and early morning, then becoming
north 10 to 15 knots after midnight. partly cloudy becoming
mostly cloudy in the late evening and early morning becoming
partly cloudy. a chance of showers and thunderstorms early in the
evening, then a chance of showers in the late evening and early
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and early morning, then building to 2 to 4 feet after
midnight. 
.wednesday...northwest winds 10 to 15 knots becoming north 15 to
20 knots in the late morning and afternoon. partly cloudy early
in the morning becoming mostly sunny. waves 2 to 4 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 181920
nshdtx
expires:202605190330;;783320

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
320 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.


lhz422-190330-
inner saginaw bay sw of point au gres to bay port mi-
320 pm edt mon may 18 2026

...small craft advisory in effect until 10 pm edt this evening...
...severe thunderstorm watch 221 in effect until 8 pm edt this
evening...

.tonight...southwest winds 15 to 20 knots. mostly cloudy. light
showers likely and a chance of thunderstorms in the evening, then
a chance of showers and a slight chance of thunderstorms after
midnight. waves 2 to 4 feet. 
.tuesday...southwest winds 20 to 25 knots with gusts to 30 knots.
mostly cloudy becoming partly cloudy in the late morning and
early afternoon becoming mostly sunny. a chance of showers and a
slight chance of thunderstorms until late afternoon, then showers
likely and a chance of thunderstorms early in the afternoon.
waves 3 to 5 feet. waves occasionally around 6 feet. 
.tuesday night...west winds 20 to 25 knots with gusts to 30 knots
becoming northwest 15 to 20 knots in the late evening and
overnight. partly cloudy early in the evening becoming mostly
cloudy. light showers likely and a chance of thunderstorms early
in the evening. waves 3 to 5 feet subsiding to 2 to 4 feet after
midnight. waves occasionally around 7 feet. 
.wednesday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and early afternoon, then becoming
north 15 to 20 knots early in the afternoon. partly cloudy early
in the morning then clearing. waves 1 to 3 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kgrb 182056
nshgrb
expires:202605190400;;787455

nearshore marine forecast
national weather service green bay wi
356 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-190400-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
356 pm cdt mon may 18 2026

...small craft advisory in effect from 1 am cdt tuesday through
late tuesday night...

.late this afternoon...se wind 5 to 10 kts. waves 2 to 4 ft.
patchy fog. a slight chance of showers and thunderstorms. 
.tonight...s wind 10 to 15 kts. waves 2 to 4 ft building to 4 to
7 ft after midnight. patchy fog. a chance of showers and
thunderstorms. 
.tuesday...sw wind 15 to 25 kts veering w early in the afternoon.
waves 4 to 7 ft. patchy fog in the morning. a chance of showers
in the morning. 
.tuesday night...nw wind 10 to 15 kts. waves 2 to 4 ft. mostly
cloudy in the evening then becoming partly cloudy. 
.wednesday...n wind 10 to 15 kts veering ne in the late morning
and afternoon. waves 2 ft or less. mostly sunny.  

$$

fzus53 kgrb 182056
nshgrb
expires:202605190400;;787454

nearshore marine forecast
national weather service green bay wi
356 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz541-190400-
rock island passage to sturgeon bay wi-
356 pm cdt mon may 18 2026

...small craft advisory in effect from 1 am cdt tuesday through
late tuesday night...

.late this afternoon...se wind 5 to 10 kts. waves 3 to 5 ft.
patchy fog. 
.tonight...s wind 10 to 15 kts. waves 2 to 4 ft building to 4 to
7 ft after midnight. patchy dense fog in the evening. areas of
dense fog after midnight. a chance of showers in the evening. a
chance of thunderstorms. rain showers after midnight. 
.tuesday...sw wind 15 to 25 kts veering nw 10 to 20 kts early in
the afternoon. waves 4 to 7 ft. patchy fog in the morning. a
chance of showers. 
.tuesday night...nw wind 10 to 15 kts. waves 2 to 4 ft subsiding
to 1 to 3 ft after midnight. mostly cloudy in the evening then
becoming partly cloudy. 
.wednesday...n wind 10 to 15 kts veering e 5 to 10 kts early in
the afternoon. waves 2 ft or less. mostly sunny.  

$$

fzus53 kgrb 182056
nshgrb
expires:202605190400;;787453

nearshore marine forecast
national weather service green bay wi
356 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz521-522-190400-
green bay south of line from cedar river to rock island passage
and north of a line from oconto wi to little sturgeon bay wi-
green bay south of line from oconto wi to little sturgeon bay wi-
356 pm cdt mon may 18 2026

...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...se wind 10 to 15 kts. waves 2 ft or less.
a slight chance of showers and thunderstorms. 
.tonight...se wind 10 to 15 kts veering s after midnight. waves
2 ft or less. patchy fog. a chance of showers and thunderstorms. 
.tuesday...sw wind 15 to 25 kts veering nw 10 to 15 kts early in
the afternoon. waves 1 to 3 ft. a chance of showers in the
morning. 
.tuesday night...nw wind 10 to 15 kts. waves 2 ft or less. mostly
cloudy in the evening then becoming partly cloudy. 
.wednesday...n wind 10 to 15 kts veering e 5 to 10 kts early in
the afternoon. waves 2 ft or less. mostly sunny.  

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787017

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-190800-
grand haven to whitehall mi-
444 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.through early evening...south winds 20 to 25 knots. rain showers
likely and a chance of thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. patchy fog after midnight. waves 4 to
6 feet. 
.tuesday...southwest winds to 30 knots. rain showers likely and a
chance of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday night...northwest winds 15 to 25 knots veering north after
midnight. mostly cloudy. waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. sunny. waves 2 to 4 feet. 
.wednesday night...north winds 15 to 25 knots veering northeast
10 to 15 knots after midnight. partly cloudy. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.thursday...east winds 10 to 15 knots backing north early in the
afternoon. mostly sunny. waves 1 foot or less. 
.friday...east winds 15 to 20 knots. mostly cloudy. waves around
1 foot. 
.saturday...east winds 15 to 20 knots backing northeast 10 to
15 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves around 1 foot. 

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787016

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-190800-
whitehall to pentwater mi-
444 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.through early evening...south winds 20 to 25 knots. mostly cloudy
with a chance of thunderstorms and a slight chance of rain showers.
waves 4 to 6 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. patchy fog after midnight. waves 4 to
6 feet. 
.tuesday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday night...west winds 20 to 25 knots veering north 15 to
20 knots in the late evening and overnight. partly cloudy. waves
3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. sunny. waves 2 to 4 feet.
.wednesday night...north winds 15 to 25 knots veering northeast
10 to 15 knots in the late evening and overnight. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening and
overnight. 
.thursday...northeast winds 10 to 15 knots backing north early in
the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 15 to 20 knots. mostly cloudy. waves around
1 foot. 
.saturday...northeast winds 15 to 20 knots. mostly cloudy. waves
around 1 foot. 

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787015

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-190800-
pentwater to manistee mi-
444 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.through early evening...south winds 20 to 25 knots. mostly cloudy
with a chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. partly cloudy in the evening,
then rain showers likely and a chance of thunderstorms after
midnight. patchy fog after midnight. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday night...west winds 10 to 20 knots veering north in the late
evening and overnight. partly cloudy. waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. sunny. waves 2 to 3 feet. 
.wednesday night...northeast winds 10 to 20 knots decreasing to 5 to
10 knots after midnight. partly cloudy. waves 2 to 3 feet. 
.thursday...northeast winds 5 to 10 knots backing north 10 to
15 knots early in the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 20 knots. mostly cloudy. waves 1 foot or
less. 
.saturday...northeast winds 10 to 15 knots. mostly cloudy with a
chance of rain showers. waves 1 foot or less. 

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787020

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-190800-
st joseph to south haven mi-
444 pm edt mon may 18 2026

...small craft advisory in effect from 2 am edt tuesday through
tuesday evening...

.through early evening...southwest winds around 20 knots. rain
showers likely and a chance of thunderstorms. waves 2 to 3 feet. 
.tonight...south winds 15 to 25 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 2 to 4 feet.
.tuesday...southwest winds 20 to 25 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tuesday night...northwest winds around 15 knots veering north after
midnight. mostly cloudy with rain showers likely and a chance of
thunderstorms. waves 2 to 4 feet.
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.wednesday night...north winds 15 to 25 knots veering northeast
10 to 15 knots in the late evening and overnight. partly cloudy.
waves 3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.friday...east winds 15 to 20 knots. mostly cloudy with a chance of
rain showers. waves around 1 foot. 
.saturday...east winds 10 to 15 knots backing northwest early in the
afternoon. mostly cloudy. waves 1 foot or less. 

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787019

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-190800-
south haven to holland mi-
444 pm edt mon may 18 2026

...small craft advisory in effect from 2 am edt tuesday through
tuesday evening...

.through early evening...south winds around 20 knots. rain showers
likely and a chance of thunderstorms. waves 2 to 4 feet. 
.tonight...south winds 15 to 25 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest winds to 30 knots. partly sunny with a chance
of showers and thunderstorms. waves 4 to 6 feet. 
.tuesday night...northwest winds 15 to 20 knots veering north after
midnight. mostly cloudy. waves 2 to 4 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.wednesday night...north winds 15 to 25 knots veering northeast
around 15 knots after midnight. partly cloudy. waves 3 to 5 feet
subsiding to 1 to 3 feet after midnight. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
around 1 foot. 
.friday...east winds 15 to 20 knots. mostly cloudy. waves around
1 foot. 
.saturday...northeast winds 10 to 15 knots backing northwest early
in the afternoon. mostly cloudy with a chance of rain showers. waves
around 1 foot. 

$$

fzus53 kgrr 182044
nshgrr
expires:202605190800;;787018

nearshore marine forecast
national weather service grand rapids mi
444 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-190800-
holland to grand haven mi-
444 pm edt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.through early evening...south winds 20 to 25 knots. mostly cloudy
with a chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. patchy fog after midnight. waves 3 to
5 feet. 
.tuesday...southwest winds to 30 knots. rain showers likely and a
chance of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday night...northwest winds 15 to 20 knots veering north after
midnight. mostly cloudy. waves 2 to 4 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.wednesday night...north winds 15 to 25 knots veering northeast
around 15 knots after midnight. partly cloudy. waves 3 to 5 feet
subsiding to 1 to 2 feet after midnight. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
around 1 foot. 
.friday...east winds 15 to 20 knots. mostly cloudy. waves 1 to
2 feet. 
.saturday...east winds 15 to 20 knots backing north 10 to 15 knots
early in the afternoon. mostly cloudy with a chance of rain showers.
waves around 1 foot. 

$$

fzus53 kiwx 181947
nshiwx
expires:202605190215;;784393

nearshore marine forecast
national weather service northern indiana
347 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-190215-
michigan city in to new buffalo mi-
347 pm edt mon may 18 2026

.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. a few gusts up to 25 knots. a slight chance of showers 
and thunderstorms this evening. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. a few 
gusts up to 25 knots. a chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance 
of thunderstorms in the afternoon. waves 1 to 3 feet. 
.tuesday night...west winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 2 to 3 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 55 degrees and at michigan
city is 53 degrees.

$$

fzus53 kiwx 181947
nshiwx
expires:202605190215;;784394

nearshore marine forecast
national weather service northern indiana
347 pm edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-190215-
new buffalo mi to st joseph mi-
347 pm edt mon may 18 2026

.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. a few gusts up to 25 knots. a slight chance of showers 
and thunderstorms this evening. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. a few 
gusts up to 25 knots. a chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance 
of thunderstorms in the afternoon. waves 2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 2 to 3 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 55 degrees and at michigan
city is 53 degrees.

$$

fzus53 klot 182046
nshlot
expires:202605190345;;787079

nearshore marine forecast
national weather service chicago/romeoville il
346 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz740>742-190345-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
346 pm cdt mon may 18 2026

.tonight...southwest winds 15 to 25 kt becoming south. chance of 
showers and slight chance of thunderstorms after midnight. waves 2
to 4 ft.
.tuesday...southwest winds 15 to 25 kt becoming west in the
afternoon. chance of showers and slight chance of thunderstorms
in the morning, then chance of showers and thunderstorms in the
afternoon. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday night...northwest winds 15 to 20 kt becoming north.
slight chance of showers and thunderstorms in the evening. waves
1 to 3 ft building to 2 to 4 ft. 
.wednesday...north winds 15 to 20 kt becoming northeast. partly
cloudy. waves 2 to 4 ft building to 3 to 5 ft.  

$$

fzus53 klot 182046
nshlot
expires:202605190345;;787080

nearshore marine forecast
national weather service chicago/romeoville il
346 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz743>745-190345-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
346 pm cdt mon may 18 2026

.tonight...south winds 15 to 25 kt. chance of showers and slight 
chance of thunderstorms after midnight. waves 2 to 4 ft. 
.tuesday...southwest winds 15 to 25 kt. slight chance of showers 
and thunderstorms in the morning, then chance of showers and 
thunderstorms in the afternoon. waves 2 to 4 ft. 
.tuesday night...northwest winds 15 to 20 kt becoming north.
showers likely and a chance of thunderstorms in the evening.
waves 2 to 4 ft. 
.wednesday...north winds 15 to 20 kt. mostly cloudy in the
morning, then becoming partly cloudy. waves 3 to 5 ft.  

$$

fzus53 kmkx 182010
nshmkx
expires:202605190900;;786096

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-190900-
port washington to north point light wi-
310 pm cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.through early evening...south wind 5 to 10 knots rising to 10 to
15 knots late in the afternoon. partly sunny. waves 2 to 4 feet. 
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots
late in the evening, then becoming south 15 to 20 knots after
midnight. chance of showers and thunderstorms in the late evening
and overnight. waves 1 to 3 feet building to 3 to 4 feet in the
late evening and overnight. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. slight chance of thunderstorms
in the morning. chance of showers through the day. waves 3 to
4 feet subsiding to 1 to 2 feet late in the afternoon. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots late in the evening, then becoming northwest 10 to
15 knots with gusts to around 20 knots after midnight veering
north early in the morning. partly cloudy. waves 1 to 2 feet. 
.wednesday...north wind 10 to 15 knots veering northeast late in
the afternoon. mostly sunny. waves 1 to 2 feet building to 2 to
4 feet in the afternoon. 

$$

fzus53 kmkx 182010
nshmkx
expires:202605190900;;786098

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-190900-
wind point wi to winthrop harbor il-
310 pm cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.through early evening...south wind 5 to 10 knots rising to 10 to
15 knots late in the afternoon. mostly cloudy. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots
after midnight, then becoming south 15 to 20 knots early in the
morning. slight chance of showers and thunderstorms in the
evening, then chance of showers and thunderstorms in the late
evening and overnight. waves 1 to 3 feet building to 2 to 4 feet
in the late evening and overnight. 
.tuesday...south wind 15 to 20 knots veering southwest late in
the morning, then becoming southwest 15 to 20 knots early in the
afternoon becoming west 10 to 15 knots late in the afternoon.
gusts up to 25 knots. slight chance of showers in the morning.
slight chance of thunderstorms through the day. chance of showers
in the afternoon. waves 2 to 4 feet subsiding to 1 to 2 feet late
in the afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots veering north early in the morning. partly
cloudy. waves 1 to 2 feet. 
.wednesday...north wind 10 to 15 knots veering northeast late in
the afternoon. mostly sunny. waves 2 to 4 feet. 

$$

fzus53 kmkx 182010
nshmkx
expires:202605190900;;786097

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-190900-
north point light to wind point wi-
310 pm cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.through early evening...south wind 10 to 15 knots. partly sunny.
waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots.
slight chance of showers and thunderstorms in the evening, then
chance of showers and thunderstorms in the late evening and
overnight. waves 1 to 2 feet building to 2 to 4 feet in the late
evening and overnight. 
.tuesday...southwest wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. slight chance of showers in the
morning. slight chance of thunderstorms through the day. chance
of showers in the afternoon. waves 2 to 4 feet subsiding to 1 to
2 feet late in the afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots veering north early in the morning. partly
cloudy. waves 1 to 2 feet. 
.wednesday...north wind 10 to 15 knots veering northeast late in
the afternoon. mostly sunny. waves 2 to 4 feet. 

$$

fzus53 kmkx 182010
nshmkx
expires:202605190900;;786095

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-190900-
sheboygan to port washington wi-
310 pm cdt mon may 18 2026

...small craft advisory in effect through tuesday evening...

.through early evening...south wind 10 to 15 knots. partly sunny.
waves 3 to 4 feet. 
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots
late in the evening, then becoming south 15 to 20 knots after
midnight. chance of showers and thunderstorms in the late evening
and overnight. patchy fog after midnight. waves 3 to 4 feet
building to 4 to 6 feet early in the morning. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. patchy fog in the morning.
slight chance of thunderstorms in the morning. chance of showers
through the day. waves 4 to 6 feet subsiding to 3 to 4 feet in
the late morning and afternoon. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots with gusts to around 20 knots late in the evening, then
becoming northwest 10 to 15 knots with gusts to around 20 knots
after midnight veering north early in the morning. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening
and overnight. 
.wednesday...north wind 10 to 15 knots veering northeast late in
the afternoon. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787936

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz242-243-190800-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
503 pm edt mon may 18 2026

...small craft advisory in effect from 5 am edt tuesday through
tuesday afternoon...

.late this afternoon...northeast wind 10 to 15 knots. cloudy.
patchy fog. waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots. patchy fog through the
night. rain showers and a chance of thunderstorms. waves building
to 2 to 4 feet. 
.tuesday...northwest wind 15 to 20 knots backing west 10 to
20 knots by late morning. cloudy. a chance of rain showers
through mid morning. patchy fog through mid morning. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.tuesday night...northwest wind 10 to 15 knots. mostly cloudy in
the evening then becoming mostly clear. waves subsiding to 1 to
2 feet. 
.wednesday...northwest wind less than 10 knots backing southwest
in the afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787940

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz247-190800-
lower entrance of portage canal to huron islands mi including
keweenaw and huron bays-
503 pm edt mon may 18 2026

...dense fog advisory in effect from 1 am to 8 am edt tuesday...

.late this afternoon...northeast wind less than 10 knots. cloudy.
patchy fog. waves 1 to 2 feet. 
.tonight...northeast wind 5 to 15 knots. patchy fog through the
night. rain showers and a chance of thunderstorms. waves 1 to
2 feet. 
.tuesday...west wind 10 to 20 knots. cloudy. a chance of rain
showers through mid morning. patchy fog through mid morning.
waves building to 2 to 3 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy in
the evening then becoming partly cloudy. waves subsiding to 1 to
2 feet. 
.wednesday...northwest wind less than 10 knots in the morning
becoming variable. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787941

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz248-190800-
huron islands to marquette mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect until 8 am edt tuesday...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...northeast wind less than 10 knots. cloudy
with a slight chance of showers and thunderstorms. patchy fog.
waves 1 to 2 feet. 
.tonight...northeast wind less than 10 knots veering southeast
10 to 15 knots late. cloudy with a chance of showers and
thunderstorms. patchy fog. waves 1 to 2 feet. 
.tuesday...west wind 10 to 20 knots veering northwest 15 to
25 knots by late morning. mostly cloudy. patchy fog through mid
morning. a chance of rain showers through mid morning, then a
slight chance of rain showers by late morning. waves building to
3 to 5 feet occasionally to 7 feet. 
.tuesday night...northwest wind 15 to 20 knots. mostly cloudy in
the evening then clearing. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northwest wind 10 to 15 knots veering northeast less
than 10 knots in the afternoon. mostly sunny. waves subsiding to
1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787943

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz250-190800-
munising to grand marais mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect until 8 am edt tuesday...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...northeast wind less than 10 knots. cloudy.
patchy fog. waves calm to 1 foot. 
.tonight...northeast wind less than 10 knots veering south 10 to
15 knots with gusts up to 22 knots late. cloudy. patchy fog
through the night. a chance of rain showers in the evening. a
chance of thunderstorms through the night. rain showers likely
after midnight. waves building to 1 to 2 feet. 
.tuesday...southwest wind 15 to 20 knots veering northwest 20 to
25 knots late. mostly cloudy. a chance of rain showers and a
slight chance of thunderstorms through early afternoon. patchy
fog through early afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.tuesday night...northwest wind 15 to 20 knots with gusts up to
27 knots. mostly cloudy. waves subsiding to 3 to 6 feet
occasionally to 8 feet, then building to 4 to 7 feet occasionally
to 9 feet. 
.wednesday...northwest wind 15 to 20 knots diminishing to 5 to
15 knots in the afternoon. partly cloudy in the morning then
clearing. waves subsiding to 2 to 3 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787942

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz249-190800-
marquette to munising mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect until 8 am edt tuesday...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...north wind less than 10 knots. cloudy with
a slight chance of showers and thunderstorms. patchy fog. waves
calm to 1 foot. 
.tonight...north wind less than 10 knots veering east by
midnight, then veering south 10 to 15 knots late. cloudy. patchy
fog through the night. a chance of rain showers in the evening. a
chance of thunderstorms through the night. rain showers likely
after midnight. waves building to 1 to 2 feet. 
.tuesday...southwest wind 10 to 20 knots veering northwest 20 to
25 knots by late morning. mostly cloudy. patchy fog through mid
morning. a chance of rain showers and a slight chance of
thunderstorms through mid morning, then a slight chance of rain
showers by late morning. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...northwest wind 15 to 20 knots. mostly cloudy in
the evening then becoming partly cloudy. waves 3 to 6 feet
occasionally to 8 feet. 
.wednesday...northwest wind 15 to 20 knots veering north 5 to
15 knots in the afternoon. sunny. waves subsiding to 1 to 2 feet.

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787944

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz251-190800-
grand marais to whitefish point mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect until 8 am edt tuesday...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...northeast wind less than 10 knots. cloudy.
areas of dense fog. waves calm to 1 foot. 
.tonight...east wind less than 10 knots veering south 10 to
15 knots with gusts up to 22 knots late. cloudy. areas of dense
fog through the night. a chance of showers and thunderstorms by
midnight. rain showers likely and a chance of thunderstorms late.
waves building to 1 to 2 feet. 
.tuesday...south wind 15 to 20 knots veering west 20 to 25 knots
late. cloudy. patchy fog through early afternoon. a chance of
rain showers and a slight chance of thunderstorms through early
afternoon, then a slight chance of rain showers late. waves
building to 5 to 8 feet occasionally to 10 feet. 
.tuesday night...northwest wind 20 to 25 knots. partly cloudy.
waves subsiding to 4 to 7 feet occasionally to 9 feet, then
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...northwest wind 10 to 20 knots. partly cloudy in the
morning then clearing. waves subsiding to 2 to 4 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787933

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lmz221-190800-
green bay north of line from cedar river mi to rock island
passage-
503 pm edt mon may 18 2026

.late this afternoon...south wind 10 to 15 knots. mostly cloudy
with a slight chance of showers and thunderstorms. patchy fog.
waves 1 to 2 feet. 
.tonight...southeast wind 5 to 15 knots veering south 10 to
15 knots late. gusts up to 23 knots. cloudy. a slight chance of
showers and thunderstorms through late evening, then a chance of
showers and thunderstorms by midnight. patchy fog through late
evening, then areas of dense fog by midnight. waves building to
2 to 4 feet. 
.tuesday...south wind 15 to 20 knots veering northwest 10 to
15 knots late. cloudy through early afternoon then becoming
partly cloudy. patchy fog through early afternoon. a chance of
showers and a slight chance of thunderstorms through early
afternoon, then a slight chance of showers late. waves subsiding
to 2 to 3 feet. 
.tuesday night...northwest wind 10 to 15 knots. mostly cloudy in
the evening then becoming partly cloudy. waves subsiding to 1 to
2 feet, then building to 2 to 3 feet. 
.wednesday...north wind 10 to 15 knots veering northeast less
than 10 knots in the afternoon. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787934

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lmz248-250-190800-
seul choix point to point detour mi-
5nm east of a line from fairport mi to rock island passage-
503 pm edt mon may 18 2026

...small craft advisory in effect from 2 am edt tuesday through
tuesday evening...

.late this afternoon...south wind 10 to 15 knots. cloudy. patchy
fog. waves 2 to 4 feet. 
.tonight...south wind 5 to 15 knots increasing to 15 to 20 knots
late. cloudy. a slight chance of showers and thunderstorms
through late evening, then a chance of showers and thunderstorms
by midnight. areas of dense fog through the night. waves
subsiding to 2 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.tuesday...southwest wind 15 to 20 knots veering northwest late.
cloudy. areas of dense fog through mid morning. patchy fog by
late morning. a chance of showers through mid morning. a slight
chance of thunderstorms through early afternoon. a slight chance
of showers by late morning. waves subsiding to 2 to 4 feet. 
.tuesday night...northwest wind 10 to 15 knots with gusts up to
22 knots. mostly cloudy in the evening then becoming partly
cloudy. waves subsiding to 1 to 2 feet. 
.wednesday...northwest wind 10 to 15 knots veering north 5 to
15 knots in the afternoon. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787939

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz246-190800-
point isabelle to lower entrance of portage canal mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect from 1 am to 8 am edt tuesday...

.late this afternoon...northeast wind less than 10 knots. cloudy.
patchy fog. waves 1 to 2 feet. 
.tonight...northeast wind 5 to 15 knots. patchy dense fog through
the night. rain showers and a chance of thunderstorms. waves 1 to
2 feet. 
.tuesday...west wind 10 to 20 knots. cloudy. a chance of rain
showers through mid morning. patchy fog through mid morning.
waves building to 2 to 3 feet, then subsiding to 1 to 2 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy in
the evening then clearing. waves 1 to 2 feet. 
.wednesday...northwest wind less than 10 knots veering northeast
in the afternoon. mostly sunny. waves calm to 1 foot. 

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787937

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz245-190800-
manitou island to point isabelle mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect from 1 am to 8 am edt tuesday...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.late this afternoon...north wind 10 to 15 knots. cloudy. patchy
fog. waves 2 to 3 feet subsiding to 1 to 2 feet. 
.tonight...northeast wind less than 10 knots veering east 10 to
15 knots late. cloudy. patchy fog through late evening. areas of
dense fog by midnight. rain showers and a chance of
thunderstorms. waves building to 2 to 3 feet. 
.tuesday...northwest wind 10 to 20 knots. cloudy. a chance of
rain showers through mid morning. patchy fog through mid morning.
waves building to 2 to 4 feet. 
.tuesday night...northwest wind 10 to 20 knots. mostly clear.
waves subsiding to 2 to 3 feet. 
.wednesday...northwest wind 5 to 15 knots backing west less than
10 knots in the afternoon. sunny. waves subsiding to 1 to 2 feet.

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787938

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz244-190800-
eagle river to manitou island mi-
503 pm edt mon may 18 2026

...dense fog advisory in effect until 11 am edt tuesday...
...small craft advisory in effect from 2 am edt tuesday through
tuesday evening...

.late this afternoon...north wind less than 10 knots. cloudy.
patchy fog. waves 2 to 3 feet subsiding to 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots veering east by
midnight. patchy fog through late evening. areas of dense fog by
midnight. patchy fog late. rain showers and a chance of
thunderstorms. waves building to 2 to 4 feet. 
.tuesday...northwest wind 15 to 20 knots. cloudy. patchy fog
through mid morning. a chance of rain showers through mid
morning, then a slight chance of rain showers by late morning.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.tuesday night...northwest wind 10 to 20 knots. partly cloudy.
waves building to 3 to 5 feet occasionally to 7 feet, then
subsiding to 2 to 4 feet. 
.wednesday...northwest wind 5 to 15 knots backing west less than
10 knots in the afternoon. sunny. waves subsiding to 1 to 2 feet.

$$

fzus53 kmqt 182103
nshmqt
expires:202605190800;;787935

nearshore marine forecast
national weather service marquette mi
503 pm edt mon may 18 2026

for waters within five nautical miles of shore

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.


lsz240-241-190800-
saxon harbor wi to black river mi-
black river to ontonagon mi-
503 pm edt mon may 18 2026 /403 pm cdt mon may 18 2026/

...small craft advisory in effect from 5 am edt /4 am cdt/
tuesday through tuesday afternoon...

.late this afternoon...northeast wind less than 10 knots. cloudy.
patchy fog. waves 1 to 2 feet. 
.tonight...northeast wind 10 to 15 knots backing north late.
patchy fog through the night. rain showers and a chance of
thunderstorms. waves building to 3 to 5 feet occasionally to
7 feet. 
.tuesday...northwest wind 10 to 15 knots backing west 10 to
20 knots by late morning. cloudy. a chance of rain showers
through mid morning. patchy fog through mid morning. waves
subsiding to 2 to 4 feet. 
.tuesday night...northwest wind 5 to 15 knots. mostly cloudy in
the evening then becoming mostly clear. waves subsiding to 1 to
2 feet. 
.wednesday...northwest wind less than 10 knots in the morning
becoming variable. sunny. waves 1 to 2 feet. 

$$