fzus53 kapx 180727
nshapx
expires:202605181530;;755752

nearshore marine forecast
national weather service gaylord mi
327 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.


lsz322-181530-
st. marys river point iroquois to e. potagannissing bay-
327 am edt mon may 18 2026

...small craft advisory in effect until noon edt today...

.today...southeast wind 10 to 15 knots gusting to 25 
knots, becoming southwest 5 to 10 knots in the afternoon. slight 
chance of thunderstorms early in the morning. chance of showers 
through the day. chance of thunderstorms in the morning. 
.tonight...south wind 5 to 10 knots. rain showers likely and a
chance of thunderstorms. 
.tuesday...southwest wind 15 to 20 knots. rain showers. 
.tuesday night...northwest wind 10 to 20 knots. mostly cloudy. 

winds higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 180727
nshapx
expires:202605181530;;755761

nearshore marine forecast
national weather service gaylord mi
327 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.


lhz348-181530-
presque isle light to sturgeon pt mi including thunder bay
national marine sanctuary-
327 am edt mon may 18 2026

.today...southeast wind 5 to 10 knots becoming south 10 to
20 knots in the morning. slight chance of showers early in the
morning. rain showers likely and a chance of thunderstorms in the
afternoon. waves 2 to 3 feet building to 3 to 5 feet in the
morning. 
.tonight...south wind 10 to 15 knots. chance of showers and
thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 10 to 20 knots. chance of showers.
waves 3 to 5 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 180727
nshapx
expires:202605181530;;755762

nearshore marine forecast
national weather service gaylord mi
327 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.


lhz349-181530-
sturgeon pt to alabaster mi-
327 am edt mon may 18 2026

.today...south wind 10 to 20 knots. chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet. 
.tonight...southwest wind 10 to 20 knots. rain showers likely and
slight chance of thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 25 knots. chance of 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 180727
nshapx
expires:202605181530;;755755

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz323-181530-
grand traverse bay south of a line grand traverse light to
norwood mi-
327 am edt mon may 18 2026

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

.today...southwest wind 10 to 15 knots. gusts up to 30 knots.
chance of thunderstorms early in the morning. chance of showers
through the day. slight chance of thunderstorms in the morning.
waves 2 to 3 feet. 
.tonight...south wind 15 to 20 knots. chance of showers and
thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 10 to 20 knots. rain showers likely.
waves 2 to 4 feet. 
.tuesday night...northwest wind 15 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 180727
nshapx
expires:202605181530;;755753

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz341-181530-
seul choix point to 5nm west of mackinac bridge-
327 am edt mon may 18 2026

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

.today...southeast wind 10 to 15 knots gusting to 25 
knots, becoming southwest early in the evening. chance of 
thunderstorms early in the morning. chance of showers through the 
day. waves 2 to 3 feet building to 3 to 5 feet in the morning. 
.tonight...south wind 15 to 20 knots. chance of showers and
thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers. waves
5 to 8 feet. 
.tuesday night...northwest wind 10 to 20 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 180727
nshapx
expires:202605181530;;755754

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz342-181530-
norwood mi to 5nm west of mackinac bridge including little
traverse bay-
327 am edt mon may 18 2026

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

.today...southeast wind 10 to 15 knots gusting to 25 
knots, becoming southwest in the afternoon. slight chance of 
thunderstorms early in the morning. chance of showers through the 
day. chance of thunderstorms in the morning. waves 2 feet or less 
building to 2 to 3 feet in the morning. 
.tonight...south wind 15 to 20 knots. rain showers likely and a
chance of thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 15 to 25 knots. chance of 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 180727
nshapx
expires:202605181530;;755756

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz344-345-181530-
sleeping bear point to grand traverse light mi-
point betsie to sleeping bear point mi-
327 am edt mon may 18 2026

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

.today...southwest wind 15 to 25 knots. chance of thunderstorms 
early in the morning. chance of showers through the day. slight 
chance of thunderstorms in the afternoon. waves 2 to 3 feet 
building to 2 to 4 feet in the morning. 
.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.

$$

fzus53 kapx 180727
nshapx
expires:202605181530;;755757

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz346-181530-
manistee to point betsie mi-
327 am edt mon may 18 2026

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

.today...southwest wind 15 to 25 knots becoming south 5 to 15 
knots early in the evening. chance of thunderstorms early in the 
morning. chance of showers through the day. slight chance of 
thunderstorms in the afternoon. waves 2 to 4 feet building to 3 to
5 feet in the morning. 
.tonight...south wind 10 to 20 knots. rain showers likely and a
chance of thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
waves 5 to 8 feet. 
.tuesday night...north wind 10 to 15 knots. mostly cloudy. waves
4 to 6 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 180727
nshapx
expires:202605181530;;755751

nearshore marine forecast
national weather service gaylord mi
327 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.


lsz321-181530-
whitefish bay (u.s. portion)/whitefish point to point iroquois mi-
327 am edt mon may 18 2026

...small craft advisory in effect until noon edt today...

.today...southeast wind 10 to 15 knots gusting to 25 
knots, becoming southwest in the afternoon. chance of 
thunderstorms early in the morning. chance of showers through the 
day. waves 2 to 4 feet subsiding to 2 feet or less in the 
afternoon. 
.tonight...south wind 10 to 15 knots. rain showers likely and a
chance of thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 15 to 25 knots. rain 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 180727
nshapx
expires:202605181530;;755758

nearshore marine forecast
national weather service gaylord mi
327 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.


lhz345-181530-
straits of mackinac within 5 nm of mackinac bridge including
mackinac island-
327 am edt mon may 18 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...southeast wind 10 to 15 knots gusting to 25 
knots, becoming west in the afternoon. slight chance of showers 
and thunderstorms early in the morning, then chance of showers and
thunderstorms in the morning. waves 2 to 3 feet. 
.tonight...south wind 5 to 10 knots. rain showers likely and a
chance of thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 10 to 20 knots. rain showers. waves
2 to 4 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 180727
nshapx
expires:202605181530;;755759

nearshore marine forecast
national weather service gaylord mi
327 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.


lhz346-181530-
st ignace to false detour channel-
327 am edt mon may 18 2026

...small craft advisory in effect until 5 am edt early this
morning...

.today...southeast wind 10 to 15 knots becoming southwest early
in the evening. slight chance of thunderstorms early in the
morning. chance of showers through the day. chance of
thunderstorms in the morning. waves 2 to 4 feet. 
.tonight...south wind 10 to 15 knots. chance of showers and
thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers. waves
4 to 6 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves 4 to 6 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 180727
nshapx
expires:202605181530;;755760

nearshore marine forecast
national weather service gaylord mi
327 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.


lhz347-181530-
5nm east of mackinac bridge to presque isle light mi including
bois blanc island-
327 am edt mon may 18 2026

.today...southeast wind 10 to 15 knots becoming southwest in the
afternoon. slight chance of showers early in the morning, then
chance of showers and slight chance of thunderstorms in the
morning. rain showers likely and a chance of thunderstorms in the
afternoon. waves 2 to 4 feet subsiding to 2 to 3 feet in the
afternoon. 
.tonight...south wind 5 to 10 knots. chance of showers and
thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 10 to 20 knots. rain showers. waves
3 to 5 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.

$$

fzus51 kbuf 180803
nshbuf
expires:202605181500;;756785

nearshore marine forecast
national weather service buffalo ny
403 am 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.


loz043-044-181500-
hamlin beach to mexico bay along lake ontario
including irondequoit bay-
403 am edt mon may 18 2026

.today...south winds 5 to 10 knots becoming southwest. becoming
mostly sunny. waves 1 foot or less. 
.tonight...south winds 5 to 10 knots becoming southwest. partly
to mostly cloudy. waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms in the afternoon.
waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest.
showers likely during the day. waves 3 to 5 feet building to 4 to
7 feet, then subsiding to 3 to 5 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 becoming southeast. a chance
of showers friday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

the water temperature off rochester is 48 degrees.

$$

fzus51 kbuf 180803
nshbuf
expires:202605181500;;756783

nearshore marine forecast
national weather service buffalo ny
403 am 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.


lez040-041-181500-
buffalo to ripley along lake erie-
403 am edt mon may 18 2026

.today...south winds 5 to 10 knots becoming southwest. sunny.
waves 1 foot or less. 
.tonight...southwest winds 5 to 10 knots. mainly clear in the
evening, then becoming mostly cloudy. waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. partly to mostly sunny.
waves 2 feet or less. 
.tuesday night...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots becoming north. showers
during the day. waves 1 to 3 feet subsiding to 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming east. partly
cloudy. waves 1 foot or less. 
.friday...east winds 5 to 10 knots becoming southeast. a chance
of showers during the day, then showers likely friday night.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus51 kbuf 180803
nshbuf
expires:202605181500;;756782

nearshore marine forecast
national weather service buffalo ny
403 am 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-loz030-181500-
upper niagara river and buffalo harbor-lower niagara river-
403 am edt mon may 18 2026

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

winds and waves higher in and near thunderstorms.

the water temperature off buffalo is 52 degrees.

$$

fzus51 kbuf 180803
nshbuf
expires:202605181500;;756786

nearshore marine forecast
national weather service buffalo ny
403 am 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.


loz045-181500-
mexico bay to the saint lawrence river along lake ontario-
403 am edt mon may 18 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus51 kbuf 180803
nshbuf
expires:202605181500;;756784

nearshore marine forecast
national weather service buffalo ny
403 am 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.


loz042-181500-
niagara river to hamlin beach along lake ontario-
403 am edt mon may 18 2026

.today...south winds 5 to 15 knots becoming southwest 15 to
20 knots. becoming mostly sunny. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers overnight. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots. becoming mostly sunny.
waves 1 to 3 feet building to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 5 feet subsiding to 2 to 4 feet.
waves occasionally around 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 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 diminishing to 5 to 10 knots.
a chance of showers friday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus51 kcle 181310
nshcle
expires:202605182015;;767653

nearshore marine forecast
national weather service cleveland oh
910 am 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.


lez148-149-182015-
geneva-on-the-lake to conneaut oh-conneaut oh to ripley ny-
910 am edt mon may 18 2026

.this afternoon...southwest winds 10 to 15 knots. sunny. waves
2 feet or less. 
.tonight...southwest winds 5 to 10 knots becoming south. a slight
chance of showers and thunderstorms in the evening, then a chance
of showers with a slight chance of thunderstorms overnight. waves
1 foot or less. 
.tuesday...south winds 10 to 15 knots becoming southwest. a
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 thunderstorms likely in the evening, then showers
overnight. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for wednesday through friday.

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

$$

fzus51 kcle 181310
nshcle
expires:202605182015;;767651

nearshore marine forecast
national weather service cleveland oh
910 am 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>144-182015-
maumee bay to reno beach oh-reno beach to the islands oh-
the islands to vermilion oh-
910 am edt mon may 18 2026

.this afternoon...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a slight chance of showers and thunderstorms
late. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers and thunderstorms in the evening,
then a chance of showers with a slight chance of thunderstorms
overnight. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers and thunderstorms likely in the afternoon.
waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with thunderstorms likely in the evening,
then showers overnight. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for wednesday through friday.

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

$$

fzus51 kcle 181310
nshcle
expires:202605182015;;767652

nearshore marine forecast
national weather service cleveland oh
910 am 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>147-182015-
vermilion to avon point oh-avon point to willowick oh-
willowick to geneva-on-the lake oh-
910 am edt mon may 18 2026

.this afternoon...south winds 10 to 15 knots becoming southwest.
sunny. waves 2 feet or less. 
.tonight...southwest winds 10 to 15 knots. a chance of showers
with a slight chance of thunderstorms. waves 2 feet or less. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers and thunderstorms in the afternoon.
waves 1 to 3 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with thunderstorms likely in the evening,
then showers overnight. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for wednesday through friday.

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

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768328

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz142-182200-
taconite harbor to silver bay harbor mn-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...northeast wind 5 knots becoming north late in
the morning, then becoming southeast early in the afternoon
becoming northeast late. chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet in the afternoon. 
.tonight...northeast wind 10 to 15 knots with gusts to around
20 knots. 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. a small
craft advisory may be needed. 
.tuesday...northwest wind 5 to 10 knots. gusts up to 20 knots
late in the afternoon. chance of rain showers in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet late in the afternoon.
a small craft advisory may be needed. 
.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. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768326

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz140-182200-
grand portage to grand marais mn-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...northeast wind 10 to 15 knots with gusts to
around 20 knots easing to 5 to 10 knots with gusts to around
20 knots in the afternoon. chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
waves 1 to 3 feet. 
.tonight...northeast wind 15 to 20 knots. gusts up to 25 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 4 to 6 feet in the late evening and
overnight. waves occasionally to 8 feet. a small craft advisory
may be needed. 
.tuesday...north wind 20 to 25 knots becoming northwest 10 to
15 knots with gusts to around 20 knots in the afternoon. chance
of rain showers in the morning. waves 4 to 6 feet subsiding to
1 to 2 feet. waves occasionally to 8 feet. a small craft advisory
may be needed. 
.tuesday night...northwest wind 10 to 15 knots. gusts up to
20 knots in the evening. mostly cloudy in the evening then
becoming partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768335

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz121-182200-
chequamegon bay-bayfield to oak point wi-
843 am cdt mon may 18 2026

.rest of today...south wind 5 knots becoming northeast in the
late morning and afternoon. slight chance of rain showers early
in the morning. waves 1 foot or less. 
.tonight...northeast wind 15 to 20 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. slight chance of thunderstorms
through the night. rain showers after midnight. waves 1 to
2 feet. 
.tuesday...north wind 10 to 15 knots with gusts to around
20 knots becoming northwest with gusts to around 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 1 to 2 feet. 
.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 becoming partly cloudy. waves 1 foot or less.

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768336

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz148-182200-
oak point to saxon harbor wi-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...variable winds 10 knots or less becoming
northwest 5 knots late in the morning, then becoming northeast in
the afternoon. slight chance of rain showers early in the
morning. waves 1 to 3 feet. 
.tonight...northeast wind 15 to 20 knots. gusts up to 25 knots in
the late evening and early morning decreasing to 20 knots. rain
showers likely in the evening. slight 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. a small
craft advisory may be needed. 
.tuesday...north wind 10 to 15 knots with gusts to around
20 knots becoming northwest with gusts to around 20 knots in the
late morning and afternoon. chance of rain showers in the
morning. waves 4 to 6 feet. waves occasionally to 8 feet. a small
craft advisory may be needed. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots easing to 5 knots after midnight. mostly cloudy.
waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening
and overnight. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768333

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz147-182200-
sand island to bayfield wi-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...northwest wind 5 knots becoming northeast in the
afternoon. chance of rain showers early in the morning, then
slight chance of rain showers late in the morning. waves 1 to
3 feet subsiding to 1 to 2 feet in the afternoon. 
.tonight...northeast wind 15 to 20 knots with gusts to around
25 knots. rain showers likely in the evening. slight chance of
thunderstorms through the night. rain showers after midnight.
waves 1 to 3 feet building to 3 to 5 feet after midnight. a small
craft advisory may be needed. 
.tuesday...north wind 10 to 15 knots with gusts to around
20 knots becoming west 5 to 10 knots with gusts to around
20 knots in the late morning and afternoon. chance of rain
showers in the morning. waves 3 to 5 feet subsiding to 1 to
3 feet late in the afternoon. a small craft advisory may be
needed. 
.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. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768332

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz146-182200-
port wing to sand island wi-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...east wind 5 knots becoming northeast in the late
morning and afternoon. chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. 
.tonight...northeast wind 10 to 15 knots. gusts up to 25 knots.
rain showers likely in the evening. slight chance of
thunderstorms through the night. rain showers after midnight.
waves 1 to 2 feet building to 3 to 5 feet after midnight. a small
craft advisory may be needed. 
.tuesday...north wind 5 to 10 knots with gusts to around 20 knots
becoming west with gusts to around 20 knots in the late morning
and afternoon. chance of rain showers in the morning. waves 3 to
5 feet subsiding to 1 to 3 feet late in the afternoon. a small
craft advisory may be needed. 
.tuesday night...west wind 5 to 10 knots. mostly cloudy. waves
1 to 2 feet. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768331

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz145-182200-
duluth mn to port wing wi-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...east wind 5 knots becoming northeast in the late
morning and afternoon. slight chance of rain showers early in the
morning. waves 1 to 3 feet subsiding to 1 to 2 feet in the
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 early in the morning. rain showers likely in the
evening. slight chance of thunderstorms through the night. rain
showers after midnight. waves 1 to 2 feet building to 3 to 5 feet
in the late evening and overnight. a small craft advisory may be
needed. 
.tuesday...north wind 10 to 15 knots becoming west in the late
morning and afternoon. gusts up to 20 knots. chance of rain
showers in the morning. waves 2 to 4 feet. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots becoming west 5 knots after midnight. mostly
cloudy. waves 1 to 3 feet. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768330

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz144-182200-
two harbors to duluth mn-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...southeast wind 5 knots becoming east in the late
morning and afternoon. slight chance of rain showers early in the
morning. waves 2 to 4 feet subsiding to 1 to 3 feet in the
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 early in the morning. rain showers likely 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 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. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots easing to 5 knots after midnight. mostly cloudy.
waves 1 to 2 feet. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768329

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz143-182200-
silver bay harbor to two harbors mn-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...southeast wind 5 knots becoming northeast in the
late morning and afternoon. chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet in the 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 early in the morning. rain showers likely 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. a small craft advisory may be needed. 
.tuesday...north wind 5 to 10 knots becoming northwest in the
late morning and afternoon. chance of rain showers in the
morning. waves 2 to 4 feet. a small craft advisory may be needed.
.tuesday night...northwest wind 5 to 10 knots. mostly cloudy in
the evening then becoming partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kdlh 181343
nshdlh
expires:202605182200;;768327

nearshore marine forecast
national weather service duluth mn
843 am 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.


lsz141-182200-
grand marais to taconite harbor mn-
843 am cdt mon may 18 2026

...small craft advisory in effect until 10 am cdt this morning...

.rest of today...north wind 5 knots becoming northwest late in
the morning, then becoming southeast early in the afternoon
becoming northeast late. chance of rain showers early in the
morning, then slight chance of rain showers late in the morning.
waves 1 to 3 feet. 
.tonight...northeast wind 10 to 15 knots. gusts up to 20 knots
after midnight. chance of rain showers and slight chance of
thunderstorms in the evening, then rain showers after midnight.
waves 1 to 3 feet building to 2 to 4 feet after midnight. 
.tuesday...north wind 5 to 10 knots becoming northwest in the
afternoon. gusts up to 20 knots. 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 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. 

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755652

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lhz441-181530-
port austin to harbor beach mi-
321 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

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

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

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755651

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lhz421-181530-
outer saginaw bay sw of alabaster to port austin mi to inner
saginaw bay-
321 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

.today...southwest winds 15 to 20 knots. partly cloudy. a chance
of showers and thunderstorms in the afternoon. waves 2 to 4 feet.
.tonight...southwest winds 15 to 20 knots. mostly cloudy. rain
showers likely in the evening. a chance of thunderstorms. a
chance of showers after midnight. waves 3 to 5 feet. waves
occasionally around 7 feet. 
.tuesday...southwest winds 20 to 25 knots. gusts to 30 knots in
the late morning and afternoon. mostly cloudy early in the
morning becoming partly cloudy. a chance of showers in the late
morning and early afternoon. light showers likely early in the
afternoon. waves 4 to 6 feet. waves occasionally around 8 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. mostly cloudy until early morning becoming partly
cloudy. light showers likely early in the evening. waves 3 to
5 feet. waves occasionally around 7 feet. 

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

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755650

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lhz422-181530-
inner saginaw bay sw of point au gres to bay port mi-
321 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

.today...south winds 15 to 20 knots becoming southwest 20 to
25 knots in the afternoon. mostly sunny in the morning, then
partly cloudy with showers likely and a chance of thunderstorms
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.
.tonight...southwest winds 20 to 25 knots diminishing to 15 to
20 knots in the late evening and overnight. mostly cloudy.
showers likely and a chance of thunderstorms early in the
evening, then a chance of showers and thunderstorms in the late
evening and overnight. waves 2 to 4 feet. 
.tuesday...southwest winds 20 to 25 knots increasing to 30 knots
in the late morning and afternoon. mostly cloudy early in the
morning becoming partly cloudy. a chance of showers in the late
morning and early afternoon. light 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 after midnight. mostly cloudy
until early morning becoming partly cloudy. light showers likely
and a chance of thunderstorms early in the evening. waves 3 to
5 feet. waves occasionally around 7 feet. 

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

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755655

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lez444-181530-
michigan waters of lake erie from detroit river to north cape mi-
321 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest 15 to
20 knots in the afternoon. sunny. a slight chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late evening and overnight. mostly cloudy with a
chance of showers and thunderstorms until early morning, 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 increasing to 20 to 25
knots early in the afternoon. partly cloudy becoming mostly sunny in
the late morning and early afternoon becoming partly cloudy. a chance
of showers in the late morning and early afternoon. light showers
likely and a chance of thunderstorms early in the afternoon. waves 1
to 3 feet building to 2 to 4 feet in the late morning and afternoon.
a small craft advisory may be needed.
.tuesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots in the late evening and overnight. light showers
and a chance of thunderstorms until early morning, then a chance
of showers after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 

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

the water temperature at belle isle is missing.

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755653

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lhz442-181530-
harbor beach to port sanilac mi-
321 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

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

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

$$

fzus53 kdtx 180721
nshdtx
expires:202605181530;;755654

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
321 am 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.


lhz443-181530-
port sanilac to port huron mi-
321 am edt mon may 18 2026

...small craft advisory in effect from 10 am edt this morning
through this evening...

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

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

$$

fzus53 kgrb 181336
nshgrb
expires:202605181600;;768190

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz541-181600-
rock island passage to sturgeon bay wi-
836 am cdt mon may 18 2026

...dense fog advisory in effect until 9 am cdt this morning...
...small craft advisory in effect through late tuesday night...

.today...s wind 15 to 25 kts decreasing to 10 to 15 kts early in
the afternoon. waves 3 to 5 ft. patchy dense fog. a chance of
showers and a slight chance of thunderstorms. 
.tonight...s wind 10 to 15 kts increasing to 15 to 25 kts after
midnight. waves 5 to 8 ft. patchy fog in the evening. areas of
dense fog after midnight. a chance of showers in the evening. a
chance of thunderstorms. rain showers likely after midnight. 
.tuesday...sw wind 15 to 25 kts veering nw early in the
afternoon. waves 5 to 8 ft. patchy fog in the morning. a chance
of showers in the morning. 
.tuesday night...nw wind 10 to 15 kts. waves 3 to 5 ft subsiding
to 1 to 3 ft after midnight. mostly cloudy in the evening then
becoming partly cloudy.  

$$

fzus53 kgrb 181336
nshgrb
expires:202605181600;;768191

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz543-181600-
two rivers to sheboygan wi-
836 am cdt mon may 18 2026

...small craft advisory in effect through late tuesday night...

.today...s wind 15 to 25 kts. waves 3 to 5 ft. patchy fog. a
chance of showers and thunderstorms. 
.tonight...s wind 10 to 15 kts increasing to 15 to 25 kts in the
late evening and overnight. waves 4 to 7 ft. patchy fog. a chance
of showers and thunderstorms. 
.tuesday...sw wind 15 to 25 kts veering w in the late morning and
afternoon. waves 5 to 8 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. partly
cloudy.  

$$

fzus53 kgrb 181336
nshgrb
expires:202605181600;;768192

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz542-181600-
sturgeon bay to two rivers wi-
836 am cdt mon may 18 2026

...dense fog advisory in effect until 9 am cdt this morning...
...small craft advisory in effect through late tuesday night...

.today...s wind 15 to 25 kts decreasing to 10 to 15 kts early in
the afternoon. waves 3 to 5 ft. patchy dense fog. a chance of
showers and a slight chance of thunderstorms. 
.tonight...s wind 15 to 25 kts. waves 4 to 7 ft. patchy fog. a
chance of showers and thunderstorms. 
.tuesday...s wind 15 to 25 kts veering w in the late morning and
afternoon. waves 5 to 8 ft subsiding to 4 to 7 ft in the
afternoon. 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 subsiding
to 1 to 3 ft after midnight. mostly cloudy in the evening then
becoming partly cloudy.  

$$

fzus53 kgrb 181336
nshgrb
expires:202605181600;;768189

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz521-522-181600-
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-
836 am cdt mon may 18 2026

...dense fog advisory in effect until 9 am cdt this morning...
...small craft advisory in effect from tuesday morning through
tuesday evening...

.today...s wind 10 to 15 kts. waves 1 to 3 ft. patchy dense fog
in the morning. a chance of showers and a slight chance of
thunderstorms. 
.tonight...s wind 10 to 15 kts. waves 1 to 3 ft. patchy fog. a
chance of showers and thunderstorms. 
.tuesday...sw wind 15 to 25 kts veering nw early in the
afternoon. waves 2 to 4 ft. a chance of showers in the morning. 
.tuesday night...nw wind 10 to 15 kts. waves 1 to 3 ft. mostly
cloudy in the evening then becoming partly cloudy.  

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768185

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-182100-
holland to grand haven mi-
936 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. a chance of showers and
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest 20 to 25 knots
early in the afternoon. rain showers likely and a chance of
thunderstorms. patchy fog. waves 6 to 8 feet. 
.tuesday night...northwest winds around 20 knots. partly cloudy.
waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.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. 

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768186

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-182100-
south haven to holland mi-
936 am edt mon may 18 2026

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

.rest of today...south winds 20 to 25 knots. a chance of showers and
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon. waves 2 to 4 feet. 
.tonight...south winds 15 to 25 knots. partly cloudy with a chance
of showers and thunderstorms. waves 3 to 5 feet. 
.tuesday...southwest winds to 30 knots. partly sunny with a chance
of showers and thunderstorms. waves 4 to 6 feet. 
.tuesday night...west winds 15 to 20 knots veering northwest in the
late evening and overnight. partly cloudy with rain showers likely
and a slight chance of thunderstorms. waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
around 1 foot. 
.friday...east winds 10 to 15 knots. mostly cloudy. waves 1 foot or
less. 

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768187

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-182100-
st joseph to south haven mi-
936 am edt mon may 18 2026

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

.rest of today...south winds around 20 knots. a chance of showers
and thunderstorms late in the morning, then rain showers likely and
a chance of thunderstorms in the afternoon. waves 2 to 3 feet. 
.tonight...south winds 15 to 25 knots. partly 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 15 to 20 knots becoming around
20 knots after midnight. mostly cloudy with a slight chance of
showers and thunderstorms. waves 3 to 5 feet. 
.wednesday...north winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves 1 to
2 feet. 
.friday...east winds 10 to 15 knots. mostly cloudy with a chance of
rain showers. waves around 1 foot. 

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768182

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-182100-
pentwater to manistee mi-
936 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 20 knots. mostly sunny. 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 15 knots. mostly cloudy. waves 1 foot or
less. 

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768183

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-182100-
whitehall to pentwater mi-
936 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. a chance of showers and
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon. waves 4 to 6 feet. 
.tonight...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 9 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north 15 to
20 knots after midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 10 to 15 knots backing north early in
the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots. mostly cloudy. waves around
1 foot. 

$$

fzus53 kgrr 181336
nshgrr
expires:202605182100;;768184

nearshore marine forecast
national weather service grand rapids mi
936 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-182100-
grand haven to whitehall mi-
936 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. a chance of showers and
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon. waves 4 to 6 feet. 
.tonight...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 8 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north after
midnight. partly cloudy. waves 4 to 6 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...east winds 10 to 15 knots backing north early in the
afternoon. mostly sunny. waves 1 foot or less. 
.friday...east winds 10 to 20 knots. mostly cloudy. waves around
1 foot. 

$$

fzus53 kiwx 180740
nshiwx
expires:202605181415;;756218

nearshore marine forecast
national weather service northern indiana
340 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-181415-
new buffalo mi to st joseph mi-
340 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest. gusts up
to 25 knots. a chance of showers and thunderstorms this morning,
then showers likely with a chance of thunderstorms this
afternoon. waves 1 to 2 feet. 
.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. a slight chance of showers and
thunderstorms in the evening. waves 1 to 2 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. gusts up to 30 knots. a chance of showers 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.
waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 kiwx 180740
nshiwx
expires:202605181415;;756217

nearshore marine forecast
national weather service northern indiana
340 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-181415-
michigan city in to new buffalo mi-
340 am edt mon may 18 2026

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

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 klot 180855
nshlot
expires:202605181515;;758874

nearshore marine forecast
national weather service chicago/romeoville il
355 am 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>745-181515-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
355 am cdt mon may 18 2026

.today...south winds 15 to 25 kt. showers likely and a chance of 
thunderstorms. waves 2 to 4 ft. 
.tonight...south winds 15 to 25 kt. slight chance of showers and 
thunderstorms in the evening, then chance of showers and 
thunderstorms overnight. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west in the
afternoon. chance of showers and thunderstorms in the morning,
then showers likely and a chance of thunderstorms in the
afternoon. waves 2 to 4 ft. a small craft advisory may be needed.  
.tuesday night...northwest winds 15 to 20 kt becoming north
overnight. chance of showers and slight chance of thunderstorms
in the evening. waves 2 to 4 ft.  

$$

fzus53 klot 180855
nshlot
expires:202605181515;;758873

nearshore marine forecast
national weather service chicago/romeoville il
355 am 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>742-181515-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
355 am cdt mon may 18 2026

.today...south winds 15 to 25 kt. showers likely and a chance of 
thunderstorms this morning, then a slight chance of showers this
afternoon. waves 2 to 4 ft.
.tonight...south winds 15 to 25 kt. slight chance of showers and 
thunderstorms in the evening, then chance of showers and 
thunderstorms overnight. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west 15 to 25 kt
in the afternoon. chance of showers and thunderstorms. waves 3 to
5 ft subsiding to 2 to 4 ft. a small craft advisory may be needed.
.tuesday night...northwest winds 15 to 20 kt becoming north
overnight. slight chance of showers in the evening. waves 2 to 4 
ft. 

$$

fzus53 kmkx 181210
nshmkx
expires:202605181600;;766207

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-181600-
north point light to wind point wi-
710 am cdt mon may 18 2026

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

.today...south wind 10 to 15 knots rising to 15 to 20 knots in
the late morning and early afternoon, then becoming south 15 to
20 knots late in the afternoon. chance of showers and
thunderstorms until late afternoon. slight chance of showers and
thunderstorms late in the afternoon. waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers likely and a chance of
thunderstorms after midnight. waves 3 to 4 feet. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then veering west early in the afternoon becoming
15 to 20 knots late in the afternoon. showers likely and a chance
of thunderstorms. waves 3 to 4 feet. 
.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 after midnight veering north early in the morning.
partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 181210
nshmkx
expires:202605181600;;766206

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-181600-
port washington to north point light wi-
710 am cdt mon may 18 2026

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

.today...south wind 10 to 15 knots with gusts to around 20 knots
rising to 15 to 20 knots early in the afternoon, then becoming
south 15 to 20 knots late in the afternoon. patchy fog in the
morning. chance of showers and thunderstorms through the day.
waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers likely and a chance of
thunderstorms after midnight. waves 3 to 4 feet building to 3 to
5 feet early in the morning. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. rain showers likely and a chance of thunderstorms
through the day. waves 3 to 5 feet subsiding to 3 to 4 feet in
the afternoon. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots after midnight, then veering north early in the morning.
partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 181210
nshmkx
expires:202605181600;;766205

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-181600-
sheboygan to port washington wi-
710 am cdt mon may 18 2026

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

.today...south wind 10 to 15 knots rising to 15 to 20 knots with
gusts to around 25 knots in the late morning and afternoon.
patchy fog in the morning. slight chance of thunderstorms in the
morning. chance of showers through the day. chance of
thunderstorms in the afternoon. waves 3 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. patchy fog through around midnight. slight
chance of showers and thunderstorms through around midnight, then
showers likely and a chance of thunderstorms after midnight.
waves 3 to 4 feet building to 4 to 6 feet. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. rain showers likely and a chance of thunderstorms
through the day. waves 5 to 7 feet subsiding to 3 to 4 feet. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots after midnight, then 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. 

$$

fzus53 kmkx 181210
nshmkx
expires:202605181600;;766208

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-181600-
wind point wi to winthrop harbor il-
710 am cdt mon may 18 2026

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

.today...south wind 10 to 15 knots rising to 15 to 20 knots early
in the afternoon, then easing to 10 to 15 knots late in the
afternoon. chance of showers and thunderstorms through the day.
waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers likely and a chance of
thunderstorms after midnight. waves 3 to 4 feet. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then becoming 15 to 20 knots early in the afternoon
veering west late in the afternoon. showers likely and a chance
of thunderstorms. waves 3 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. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759396

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz240-241-182000-
saxon harbor wi to black river mi-
black river to ontonagon mi-
506 am edt mon may 18 2026 /406 am cdt mon may 18 2026/

.early this morning...east wind less than 10 knots. cloudy with a
chance of rain showers and a slight chance of thunderstorms.
patchy fog. waves 2 to 4 feet subsiding to 2 to 3 feet. 
.today...northwest wind less than 10 knots veering northeast
late. cloudy with a slight chance of rain showers. patchy fog.
waves subsiding to 1 to 2 feet. 
.tonight...northeast wind 10 to 20 knots. a chance of rain
showers and a slight chance of thunderstorms through late
evening, then rain showers and a slight chance of thunderstorms
by midnight. patchy fog through the night. waves building to 4 to
7 feet occasionally to 9 feet. 
.tuesday...northwest wind 10 to 20 knots backing west 10 to
15 knots in the afternoon. cloudy. a chance of rain showers in
the morning. waves subsiding to 2 to 3 feet. 
.tuesday night...northwest wind less than 10 knots with gusts up
to 18 knots. mostly cloudy in the evening then becoming partly
cloudy. waves subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759395

nearshore marine forecast
national weather service marquette mi
506 am 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.


lmz248-250-182000-
seul choix point to point detour mi-
5nm east of a line from fairport mi to rock island passage-
506 am edt mon may 18 2026

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

.early this morning...southeast wind 10 to 15 knots. cloudy with
a chance of showers and thunderstorms. patchy dense fog. waves
2 to 3 feet. 
.today...south wind 15 to 20 knots. cloudy. patchy dense fog
through the day. a chance of showers and a slight chance of
thunderstorms through mid morning. a slight chance of showers by
late morning. a slight chance of thunderstorms late. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tonight...south wind 10 to 15 knots with gusts up to 30 knots
increasing to 15 to 25 knots late. cloudy. areas of dense fog
through the night. a chance of showers in the evening. a chance
of thunderstorms through the night. showers likely after
midnight. waves subsiding to 2 to 4 feet, then building to 4 to
7 feet occasionally to 9 feet. 
.tuesday...southwest wind 20 to 25 knots veering northwest 15 to
20 knots in the afternoon. cloudy in the morning then becoming
partly cloudy. areas of dense fog in the morning. a chance of
showers. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...northwest wind 15 to 20 knots. mostly cloudy.
waves subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759394

nearshore marine forecast
national weather service marquette mi
506 am 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.


lmz221-182000-
green bay north of line from cedar river mi to rock island
passage-
506 am edt mon may 18 2026

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

.early this morning...southeast wind 10 to 15 knots.
thunderstorms likely and a chance of rain showers. areas of dense
fog. waves 2 to 3 feet. 
.today...south wind 10 to 15 knots with gusts up to 22 knots.
cloudy. areas of dense fog through mid morning. patchy fog by
late morning. a slight chance of thunderstorms through mid
morning. a chance of showers through the day. a slight chance of
thunderstorms late. waves 2 to 3 feet. 
.tonight...south wind 10 to 20 knots. gusts up to 28 knots after
midnight. cloudy. a chance of showers and a slight chance of
thunderstorms through late evening, then a chance of showers and
thunderstorms by midnight. patchy fog through late evening. areas
of dense fog by midnight. waves subsiding to 1 to 2 feet, then
building to 2 to 4 feet. 
.tuesday...southwest wind 15 to 20 knots veering northwest in the
afternoon. patchy dense fog in the morning. cloudy with a chance
of showers in the morning, then partly cloudy with a slight
chance of showers in the afternoon. 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. mostly cloudy.
waves subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759403

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz250-182000-
munising to grand marais mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 11 am edt this morning...

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

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759401

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz248-182000-
huron islands to marquette mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 8 am edt this morning...

.early this morning...southeast wind 10 to 15 knots. rain showers
and a chance of thunderstorms. patchy fog. waves 3 to 5 feet
occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...south wind 10 to 15 knots veering west by late morning,
then veering north late. cloudy. patchy fog through the day. a
chance of rain showers through mid morning. a slight chance of
rain showers by late morning, then a chance of rain showers late.
waves subsiding to 1 to 2 feet. 
.tonight...north wind less than 10 knots veering southeast late.
gusts up to 18 knots. patchy fog through the night. a slight
chance of thunderstorms in the evening. rain showers likely
through the night. a chance of thunderstorms after midnight.
waves building to 2 to 3 feet. 
.tuesday...northwest wind 15 to 25 knots. mostly cloudy. a chance
of rain showers and a slight chance of thunderstorms in the
morning. patchy fog in the morning. waves building to 4 to 7 feet
occasionally to 9 feet. 
.tuesday night...northwest wind 15 to 25 knots. mostly cloudy.
waves subsiding to 3 to 5 feet occasionally to 7 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759400

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz247-182000-
lower entrance of portage canal to huron islands mi including
keweenaw and huron bays-
506 am edt mon may 18 2026

...small craft advisory in effect until 11 am edt this morning...

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

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759402

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz249-182000-
marquette to munising mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 8 am edt this morning...

.early this morning...southeast wind 10 to 15 knots. showers and
a chance of thunderstorms. patchy fog. waves 2 to 3 feet
subsiding to 1 to 2 feet. 
.today...south wind 10 to 15 knots veering southwest by late
morning, then veering northwest late. mostly cloudy. patchy fog
through the day. a chance of showers and a slight chance of
thunderstorms through mid morning. a slight chance of showers by
late morning, then a chance of showers late. waves 1 to 2 feet. 
.tonight...northwest wind less than 10 knots backing west by
midnight, then backing south 5 to 15 knots late. cloudy. a chance
of rain showers and a slight chance of thunderstorms through
midnight, then a chance of showers and thunderstorms late. patchy
fog through the night. waves 1 to 2 feet. 
.tuesday...west wind up to 30 knots veering northwest in the
afternoon. mostly cloudy. patchy fog in the morning. a chance of
rain showers and a slight chance of thunderstorms in the morning,
then a slight chance of rain showers in the afternoon. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 6 to 9 feet occasionally to 11 feet. 
.tuesday night...northwest wind up to 30 knots. mostly cloudy.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759404

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz251-182000-
grand marais to whitefish point mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 11 am edt this morning...

.early this morning...southeast wind 15 to 20 knots. cloudy with
a chance of showers and thunderstorms. patchy fog. waves 2 to
3 feet. 
.today...southeast wind 10 to 15 knots veering west less than
10 knots late. mostly cloudy. a chance of showers and
thunderstorms through mid morning, then a slight chance of
showers by late morning. patchy fog through the day. waves
subsiding to 1 to 2 feet. 
.tonight...southeast wind 5 to 15 knots. cloudy. patchy fog
through the night. a slight chance of thunderstorms in the
evening. a chance of rain showers through the night. a chance of
thunderstorms after midnight. waves calm to 1 foot. 
.tuesday...south wind 15 to 25 knots veering west up to 30 knots
in the afternoon. mostly cloudy. patchy fog in the morning. rain
showers likely and a slight chance of thunderstorms in the
morning, then a slight chance of rain showers in the afternoon.
waves building to 7 to 10 feet occasionally to 13 feet. 
.tuesday night...northwest wind 20 to 25 knots. mostly cloudy.
waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759399

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz246-182000-
point isabelle to lower entrance of portage canal mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 11 am edt this morning...

.early this morning...east wind 10 to 15 knots. rain showers and
a chance of thunderstorms. patchy fog. waves 3 to 6 feet
occasionally to 8 feet subsiding to 3 to 5 feet occasionally to
7 feet. 
.today...south wind less than 10 knots veering west by late
morning, then veering north late. cloudy. a slight chance of rain
showers through mid morning. a slight chance of rain showers
late. patchy fog through the day. waves subsiding to 1 to 2 feet.
.tonight...northeast wind 10 to 15 knots. a chance of rain
showers and a slight chance of thunderstorms through midnight,
then rain showers and a slight chance of thunderstorms late.
patchy fog through the night. waves 1 to 2 feet. 
.tuesday...northwest wind 10 to 20 knots becoming 15 to 20 knots
in the afternoon. cloudy. patchy fog in the morning. rain showers
likely in the morning, then a slight chance of rain showers in
the afternoon. waves building to 2 to 4 feet, then subsiding 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. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759398

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz244-245-182000-
eagle river to manitou island mi-
manitou island to point isabelle mi-
506 am edt mon may 18 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.early this morning...southeast wind 10 to 20 knots. rain showers
and a chance of thunderstorms. patchy fog. waves 3 to 6 feet
occasionally to 8 feet. 
.today...south wind 5 to 15 knots veering west less than 10 knots
by late morning, then veering north 10 to 15 knots late. cloudy.
a chance of rain showers through mid morning. a slight chance of
rain showers late. patchy fog through the day. waves subsiding to
2 to 3 feet. 
.tonight...northeast wind 10 to 20 knots becoming 10 to 15 knots
late. a chance of rain showers and a slight chance of
thunderstorms through late evening, then rain showers and a
slight chance of thunderstorms by midnight. patchy dense fog
through the night. waves building to 3 to 5 feet occasionally to
7 feet. 
.tuesday...northwest wind 15 to 25 knots becoming 20 to 25 knots
in the afternoon. cloudy. a chance of rain showers in the
morning. patchy fog in the 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 10 to 20 knots with gusts up to
27 knots. mostly cloudy in the evening then becoming partly
cloudy. waves subsiding to 2 to 4 feet. 

$$

fzus53 kmqt 180907
nshmqt
expires:202605182000;;759397

nearshore marine forecast
national weather service marquette mi
506 am 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.


lsz242-243-182000-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
506 am edt mon may 18 2026

.early this morning...southeast wind 10 to 15 knots. rain showers
and a chance of thunderstorms. patchy fog. waves 2 to 3 feet. 
.today...southwest wind less than 10 knots veering northwest by
late morning, then veering northeast 10 to 15 knots late. cloudy.
a slight chance of rain showers through mid morning. a slight
chance of rain showers late. patchy fog through the day. waves
subsiding to 1 to 2 feet. 
.tonight...northeast wind 10 to 20 knots. a chance of rain
showers and a slight chance of thunderstorms through late
evening, then rain showers and a slight chance of thunderstorms
by midnight. patchy fog through the night. waves building to 3 to
6 feet occasionally to 8 feet. 
.tuesday...northwest wind 20 to 25 knots backing west 15 to
20 knots in the afternoon. cloudy. rain showers likely in the
morning. patchy fog in the morning. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 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. 

$$