• CLASSIC IWINDSURF
    Classic myiWindsurfClassic Wind & Weather maps and graphs
Hello Guest
 • 

Classic iWindsurf
kiter? see iKitesurf.com
Grab the iWindsurf Mobile App & Sign On to the New iWindsurf Website
Hi guest · Get your free membership now · Log In ·
xt_Great Lakes

Real-Time Data
 > Dynamic Map
 > Wind Obs Map
 > Radar + Satellite Map
 > Wind Obs Summary

Computer Forecasts
 > Model Tables
 > Wind Vector Fx Map
 > Wind FlowViz Fx Map

More Maps

Other Resources
Wind Graphs
Meteograms

Watches/Warnings
>None Active

New iWindsurf: Select your region for wind observations & forecasts:
North America | Europe | South America | Australia & Oceania | Asia | Africa

fzus53 kapx 171842
nshapx
expires:202605180700;;724402

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lhz346-180700-
st ignace to false detour channel-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through late tonight...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers early in the evening. chance of thunderstorms through the
night. rain showers likely after midnight. waves 3 to 5 feet. 
.monday...south wind 10 to 15 knots. chance of showers and slight
chance of thunderstorms. waves 2 to 4 feet. 
.monday night...south wind 10 to 15 knots. rain showers likely
and a chance of thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers. 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 171842
nshapx
expires:202605180700;;724397

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz342-180700-
norwood mi to 5nm west of mackinac bridge including little
traverse bay-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers and a chance of thunderstorms early in the evening, then 
chance of showers and slight chance of thunderstorms after 
midnight. waves 2 to 4 feet subsiding to 2 to 3 feet after 
midnight. 
.monday...southwest wind 10 to 20 knots. gusts to 25 knots. chance
of showers and slight chance of thunderstorms. waves 2 to 4 feet.
.monday night...south wind 10 to 15 knots. rain showers and a
chance of thunderstorms. waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 25 knots with gusts to around
35 knots. rain showers. 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 171842
nshapx
expires:202605180700;;724396

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz341-180700-
seul choix point to 5nm west of mackinac bridge-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers early in the evening. chance of thunderstorms through the
night. rain showers likely after midnight. waves 2 to 4 feet. 
.monday...southwest wind 10 to 20 knots. gusts to 25 knots. chance
of showers and slight chance of thunderstorms. waves 4 to 7 feet.
.monday night...southwest wind 15 to 20 knots. rain showers and a
chance of thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers. waves
6 to 9 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$
fzus53 kapx 171842
nshapx
expires:202605180700;;724398

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz323-180700-
grand traverse bay south of a line grand traverse light to
norwood mi-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...southeast wind 10 to 20 knots becoming south early in
the morning. gusts to 25 knots. rain showers and a chance of 
thunderstorms early in the evening, then slight chance of showers 
and thunderstorms after midnight. waves 2 to 3 feet. 
.monday...southwest wind 10 to 20 knots. gusts to 25 knots. chance
of showers and slight chance of thunderstorms. waves 2 to 3 feet.
.monday night...south wind 10 to 20 knots. rain showers and a
chance of thunderstorms. waves 2 to 3 feet. 
.tuesday...southwest wind 10 to 20 knots. rain showers likely.
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 171842
nshapx
expires:202605180700;;724405

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lhz349-180700-
sturgeon pt to alabaster mi-
242 pm edt sun may 17 2026

.tonight...northeast wind 10 to 15 knots becoming south after
midnight. chance of showers and thunderstorms early in the
evening. waves 2 to 3 feet. 
.monday...south wind 10 to 20 knots. chance of showers and
thunderstorms. waves 3 to 5 feet. 
.monday night...southwest wind 10 to 20 knots. chance of showers.
waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
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 171842
nshapx
expires:202605180700;;724404

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lhz348-180700-
presque isle light to sturgeon pt mi including thunder bay
national marine sanctuary-
242 pm edt sun may 17 2026

.tonight...east wind 10 to 15 knots becoming south after
midnight. rain showers and a chance of thunderstorms early in the
evening, then chance of showers and slight chance of
thunderstorms after midnight. waves 2 to 4 feet. 
.monday...south wind 15 to 20 knots. chance of showers and
thunderstorms. waves 4 to 6 feet. 
.monday night...south wind 10 to 15 knots. chance of showers.
waves 2 to 4 feet. 
.tuesday...southwest wind 10 to 20 knots. rain showers likely.
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 171842
nshapx
expires:202605180700;;724403

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lhz347-180700-
5nm east of mackinac bridge to presque isle light mi including
bois blanc island-
242 pm edt sun may 17 2026

.tonight...southeast wind 10 to 20 knots. rain showers early in
the evening. chance of thunderstorms through the night. chance of
showers after midnight. waves 2 to 4 feet. 
.monday...southwest wind 10 to 15 knots. chance of showers and
thunderstorms. waves 2 to 4 feet. 
.monday night...south wind 5 to 10 knots. chance of showers and
thunderstorms. waves 2 feet or less. 
.tuesday...southwest wind 15 to 25 knots. rain showers. 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 171842
nshapx
expires:202605180700;;724401

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lhz345-180700-
straits of mackinac within 5 nm of mackinac bridge including
mackinac island-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through late tonight...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers early in the evening. chance of thunderstorms through the
night. chance of showers after midnight. waves 2 to 4 feet. 
.monday...southwest wind 10 to 15 knots. chance of showers and
slight chance of thunderstorms. waves 2 to 3 feet. 
.monday night...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
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 171842
nshapx
expires:202605180700;;724395

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lsz322-180700-
st. marys river point iroquois to e. potagannissing bay-
242 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday morning...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers early in the evening. chance of thunderstorms through the
night. chance of showers after midnight. 
.monday...south wind 10 to 15 knots. chance of showers and slight
chance of thunderstorms. 
.monday night...south wind 5 to 10 knots. chance of showers and
thunderstorms. 
.tuesday...southwest wind 15 to 20 knots. rain showers. 

winds higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$
fzus53 kapx 171842
nshapx
expires:202605180700;;724394

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lsz321-180700-
whitefish bay (u.s. portion)/whitefish point to point iroquois mi-
242 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday morning...

.tonight...southeast wind 10 to 20 knots. gusts to 25 knots. rain
showers likely early in the evening. chance of thunderstorms 
through the night. rain showers after midnight. waves 2 to 4 feet.
.monday...south wind 10 to 15 knots. chance of showers and
thunderstorms. waves 2 to 3 feet. 
.monday night...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
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 171842
nshapx
expires:202605180700;;724400

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz346-180700-
manistee to point betsie mi-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...south wind 10 to 20 knots. gusts to 25 knots. rain 
showers likely and a chance of thunderstorms early in the evening,
then slight chance of showers and thunderstorms after midnight. 
waves 2 feet or less building to 3 to 5 feet after midnight. 
.monday...south wind 10 to 20 knots. gusts to 25 knots. chance of
showers and slight chance of thunderstorms. waves 4 to 6 feet. 
.monday night...south wind 10 to 20 knots. chance of showers and
thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
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 171842
nshapx
expires:202605180700;;724399

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz344-345-180700-
sleeping bear point to grand traverse light mi-
point betsie to sleeping bear point mi-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...east wind 10 to 15 knots becoming south 10 to 20 knots
after midnight. gusts to 25 knots. rain showers and a chance of 
thunderstorms early in the evening, then chance of showers and 
slight chance of thunderstorms after midnight. waves 2 feet or 
less building to 2 to 4 feet after midnight. 
.monday...southwest wind 10 to 20 knots. gusts to 25 knots. chance
of showers and slight chance of thunderstorms. waves 4 to 6 feet.
.monday night...south wind 10 to 20 knots. rain showers 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. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$
fzus51 kbuf 171403
nshbuf
expires:202605172100;;712600

nearshore marine forecast
national weather service buffalo ny
1003 am edt sun may 17 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-loz030-172100-
upper niagara river and buffalo harbor-lower niagara river-
1003 am edt sun may 17 2026

.rest of today...southwest winds 5 to 10 knots. mostly sunny. 
.tonight...south winds less than 10 knots. a chance of showers
overnight. 
.monday...south winds 10 knots or less becoming southwest 10 to
15 knots. mostly sunny. 
.monday night...southwest winds 5 to 10 knots. a chance of
showers overnight. 
.tuesday...southwest winds 10 to 15 knots. a chance of showers
during the day, then showers with a chance of thunderstorms
tuesday night. 
.wednesday...west winds 5 to 10 knots becoming northwest. showers
during the day. 
.thursday...north winds 10 knots or less becoming northeast.
partly cloudy. 

winds and waves higher in and near thunderstorms.

the water temperature off buffalo is 52 degrees.

$$
fzus51 kbuf 171403
nshbuf
expires:202605172100;;712602

nearshore marine forecast
national weather service buffalo ny
1003 am edt sun may 17 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.


loz042-172100-
niagara river to hamlin beach along lake ontario-
1003 am edt sun may 17 2026

.rest of today...west winds 10 knots or less becoming northeast.
sunny late this morning, then becoming partly sunny. waves 1 foot
or less. 
.tonight...east winds 10 knots or less. a chance of showers.
waves 1 foot or less. 
.monday...southeast winds 10 knots or less becoming southwest
10 to 15 knots. becoming mostly sunny. waves 2 feet or less. 
.monday night...southwest winds 10 to 15 knots. a chance of
showers overnight. waves 2 feet or less. 
.tuesday...southwest winds 15 to 25 knots. a chance of showers
during the day, then showers with a chance of thunderstorms
tuesday night. waves 1 to 3 feet building to 3 to 5 feet. waves
occasionally around 6 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. showers likely during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...north winds 10 knots or less becoming northeast.
partly cloudy. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$
fzus51 kbuf 171403
nshbuf
expires:202605172100;;712603

nearshore marine forecast
national weather service buffalo ny
1003 am edt sun may 17 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.


loz043-044-172100-
hamlin beach to mexico bay along lake ontario
including irondequoit bay-
1003 am edt sun may 17 2026

.rest of today...west winds 10 knots or less becoming northeast.
patchy fog late this morning. waves 1 foot or less. 
.tonight...southeast winds 10 knots or less. mostly cloudy. waves
1 foot or less. 
.monday...southeast winds 5 to 10 knots becoming southwest.
becoming mostly sunny. waves 1 foot or less. 
.monday night...southwest winds 10 knots or less. partly cloudy.
waves 1 foot or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers and thunderstorms during the day,
then showers likely with a chance of thunderstorms tuesday night.
waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest.
showers likely with a chance of thunderstorms during the day.
waves 2 to 4 feet building to 3 to 6 feet. waves occasionally
around 7 feet. 
.thursday...north winds 5 to 15 knots becoming northeast less
than 10 knots. partly cloudy. waves 2 to 4 feet subsiding to
2 feet or less. 

winds and waves higher in and near thunderstorms.

the water temperature off rochester is 48 degrees.

$$
fzus51 kbuf 171403
nshbuf
expires:202605172100;;712601

nearshore marine forecast
national weather service buffalo ny
1003 am edt sun may 17 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.


lez040-041-172100-
buffalo to ripley along lake erie-
1003 am edt sun may 17 2026

.rest of today...southwest winds 10 knots or less. partly to
mostly sunny. waves 1 foot or less. 
.tonight...light and variable winds becoming south 5 to 10 knots.
mostly cloudy. waves 1 foot or less. 
.monday...south winds 5 to 10 knots becoming southwest. sunny.
waves 1 foot or less. 
.monday night...southwest winds 5 to 10 knots. partly cloudy.
waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots. a chance of showers
during the day, then showers with a chance of thunderstorms
tuesday night. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots becoming north. showers
with a chance of thunderstorms during the day. waves 1 to 3 feet
subsiding to 1 foot or less. 
.thursday...northeast winds 10 knots or less becoming east.
partly cloudy. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$
fzus51 kbuf 171403
nshbuf
expires:202605172100;;712604

nearshore marine forecast
national weather service buffalo ny
1003 am edt sun may 17 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.


loz045-172100-
mexico bay to the saint lawrence river along lake ontario-
1003 am edt sun may 17 2026

.rest of today...southwest winds 10 knots or less. patchy fog.
waves 2 feet or less. 
.tonight...south winds 10 knots or less becoming east. a chance
of showers overnight. waves 1 foot or less. 
.monday...southeast winds 5 to 10 knots becoming southwest. a
chance of showers in the morning. waves 2 feet or less. 
.monday night...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers during the day, then showers with a
chance of thunderstorms tuesday night. waves 1 to 3 feet building
to 2 to 4 feet. 
.wednesday...southwest winds 15 to 20 knots becoming northwest.
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. partly cloudy. waves 1 to 3 feet subsiding to 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$
fzus51 kcle 171307
nshcle
expires:202605172015;;710921

nearshore marine forecast
national weather service cleveland oh
907 am edt sun may 17 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>146-172015-
maumee bay to reno beach oh-reno beach to the islands oh-
the islands to vermilion oh-vermilion to avon point oh-
avon point to willowick oh-
907 am edt sun may 17 2026

.this afternoon...southwest winds 5 to 10 knots becoming
southeast. a slight chance of showers and thunderstorms early
this afternoon. a chance of showers and thunderstorms late. waves
1 foot or less. 
.tonight...southeast winds 5 to 15 knots becoming south. a slight
chance of showers and thunderstorms in the evening. waves 1 foot
or less. 
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. sunny. waves 1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots becoming south
10 to 15 knots. a chance of showers and thunderstorms in the
evening, then a chance of showers overnight. waves 2 feet or
less. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for tuesday through thursday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 55 degrees.

$$
fzus51 kcle 171307
nshcle
expires:202605172015;;710922

nearshore marine forecast
national weather service cleveland oh
907 am edt sun may 17 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.


lez147>149-172015-
willowick to geneva-on-the lake oh-geneva-on-the-
lake to conneaut oh-conneaut oh to ripley ny-
907 am edt sun may 17 2026

.this afternoon...southwest winds less than 10 knots becoming
south. a slight chance of showers and thunderstorms late. waves
1 foot or less. 
.tonight...east winds 10 knots or less becoming south. a slight
chance of showers and thunderstorms in the evening. waves 1 foot
or less. 
.monday...south winds 10 to 15 knots becoming southwest. sunny.
waves 2 feet or less. 
.monday night...southwest winds 5 to 15 knots becoming south.
partly cloudy in the evening, then becoming mostly cloudy. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

see lake erie open lakes forecast for tuesday through thursday.

the water temperature off toledo is 58 degrees, off cleveland 54
degrees, and off erie 55 degrees.

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721643

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz142-172200-
taconite harbor to silver bay harbor mn-
123 pm cdt sun may 17 2026

...gale warning in effect until 10 pm cdt this evening...

.rest of today...northeast wind 20 to 25 knots. gusts up to
30 knots increasing to 35 knots late. partly sunny. waves 4 to
7 feet building to 7 to 10 feet late. waves occasionally to
12 feet. 
.tonight...northeast wind 20 to 25 knots with gales to around
35 knots easing to 10 to 15 knots with gusts to around 20 knots
early in the morning. chance of rain showers in the evening.
chance of thunderstorms through the night. rain showers likely
after midnight. waves 7 to 10 feet subsiding to 4 to 7 feet early
in the morning. waves occasionally to 13 feet. 
.monday...north wind 5 knots becoming west late in the morning,
then becoming variable 10 knots or less in the afternoon. chance
of showers and thunderstorms in the morning. waves 3 to 5 feet
subsiding to 1 to 3 feet late in the afternoon. waves
occasionally to 7 feet. a small craft advisory may be needed. 
.monday night...northeast wind 10 to 15 knots with gusts to
around 25 knots. chance of rain showers in the evening, then rain
showers after midnight. waves 1 to 2 feet building to 3 to 5 feet
after midnight. waves occasionally to 7 feet. a small craft
advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721650

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz121-172200-
chequamegon bay-bayfield to oak point wi-
123 pm cdt sun may 17 2026

...small craft advisory in effect until 10 pm cdt this evening...

.rest of today...northeast wind 20 to 25 knots with gusts to
around 30 knots. mostly cloudy. waves 1 to 3 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
25 knots easing to 5 to 10 knots after midnight. chance of rain
showers in the evening. chance of thunderstorms through the
night. rain showers after midnight. waves 1 to 3 feet. 
.monday...northwest wind 5 knots becoming northeast in the
afternoon. chance of rain showers and slight chance of
thunderstorms in the morning, then slight chance of rain showers
in the afternoon. waves 1 foot or less. 
.monday night...northeast wind 15 to 20 knots with gusts to
around 30 knots. chance of rain showers and slight chance of
thunderstorms in the evening, then rain showers and chance of
thunderstorms after midnight. waves 1 to 3 feet. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721641

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz140-172200-
grand portage to grand marais mn-
123 pm cdt sun may 17 2026

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

.rest of today...northeast wind 20 to 25 knots with gusts to
around 30 knots. partly sunny. waves 4 to 7 feet. waves
occasionally to 10 feet. 
.tonight...northeast wind 20 to 25 knots. gusts up to 30 knots
decreasing to 25 knots early in the morning. slight chance of
showers and thunderstorms in the evening, then rain showers and
chance of thunderstorms after midnight. waves 4 to 7 feet. waves
occasionally to 9 feet. 
.monday...northeast wind 10 to 15 knots with gusts to around
20 knots. chance of showers and thunderstorms in the morning.
waves 3 to 5 feet. waves occasionally to 7 feet. 
.monday night...northeast wind 20 to 25 knots with gales to
around 35 knots. rain showers after midnight. waves 5 to 8 feet.
waves occasionally to 10 feet. a gale warning may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721642

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz141-172200-
grand marais to taconite harbor mn-
123 pm cdt sun may 17 2026

...gale warning in effect until 10 pm cdt this evening...

.rest of today...northeast wind 20 to 25 knots. gusts up to
30 knots increasing to 35 knots late. partly sunny. waves 4 to
6 feet building to 6 to 9 feet late. waves occasionally to
11 feet. 
.tonight...northeast wind 20 to 25 knots with gales to around
35 knots easing to 10 to 15 knots with gusts to around 25 knots
early in the morning. chance of rain showers in the evening.
chance of thunderstorms through the night. rain showers after
midnight. waves 6 to 9 feet subsiding to 4 to 7 feet early in the
morning. waves occasionally to 12 feet. 
.monday...northeast wind 5 to 10 knots becoming northwest late in
the morning, then becoming west early in the afternoon becoming
northeast late in the afternoon. chance of showers and
thunderstorms 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. 
.monday night...northeast wind 15 to 20 knots with gusts to
around 30 knots. slight chance of rain showers in the evening,
then rain showers after midnight. waves 1 to 3 feet building to
3 to 5 feet after midnight. waves occasionally to 7 feet. a small
craft advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721644

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz143-172200-
silver bay harbor to two harbors mn-
123 pm cdt sun may 17 2026

...gale warning in effect until 10 pm cdt this evening...

.rest of today...northeast wind up to 30 knots with gales to
around 35 knots. partly sunny. waves 5 to 8 feet building to 7 to
10 feet late. waves occasionally to 13 feet. 
.tonight...northeast wind up to 30 knots with gales to around
35 knots easing to 10 to 15 knots with gusts to around 20 knots
early in the morning. chance of rain showers in the evening.
chance of thunderstorms through the night. rain showers likely
after midnight. waves 8 to 11 feet subsiding to 4 to 7 feet early
in the morning. waves occasionally to 14 feet. 
.monday...northeast wind 5 knots becoming south in the late
morning and early afternoon, then becoming east late in the
afternoon. chance of rain showers and slight chance of
thunderstorms in the morning. waves 3 to 5 feet subsiding to 1 to
3 feet. waves occasionally to 7 feet. a small craft advisory may
be needed. 
.monday night...northeast wind 15 to 20 knots with gusts to
around 30 knots. chance of rain showers and slight chance of
thunderstorms in the evening, then rain showers after midnight.
waves 1 to 3 feet building to 3 to 5 feet after midnight. waves
occasionally to 7 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721645

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz144-172200-
two harbors to duluth mn-
123 pm cdt sun may 17 2026

...gale warning in effect until 10 pm cdt this evening...

.rest of today...northeast wind up to 30 knots with gales to
around 35 knots. mostly cloudy. waves 7 to 10 feet. waves
occasionally to 13 feet. 
.tonight...northeast wind up to 30 knots with gales to around
35 knots easing to 10 to 15 knots with gusts to around 20 knots
early in the morning. chance of rain showers in the evening.
chance of thunderstorms through the night. rain showers after
midnight. waves 8 to 11 feet subsiding to 4 to 7 feet early in
the morning. waves occasionally to 14 feet. 
.monday...northeast wind 5 knots becoming southwest late in the
morning, then becoming southeast early in the afternoon becoming
northeast late in the afternoon. chance of rain showers and
slight chance of thunderstorms 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. 
.monday night...northeast wind 15 to 20 knots. gusts up to
20 knots increasing to 30 knots in the late evening and
overnight. rain showers likely in the evening. slight chance of
thunderstorms through the night. rain showers after midnight.
waves 1 to 3 feet building to 4 to 7 feet. waves occasionally to
9 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721646

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz145-172200-
duluth mn to port wing wi-
123 pm cdt sun may 17 2026

...gale warning in effect until 10 pm cdt this evening...

.rest of today...northeast wind up to 30 knots with gales to
around 35 knots. mostly cloudy. waves 7 to 10 feet. waves
occasionally to 13 feet. 
.tonight...northeast wind up to 30 knots with gales to around
40 knots easing to 10 to 15 knots with gusts to around 20 knots
early in the morning. chance of rain showers in the evening.
chance of thunderstorms through the night. rain showers after
midnight. waves 8 to 11 feet subsiding to 4 to 6 feet early in
the morning. waves occasionally to 14 feet. 
.monday...northeast wind 5 to 10 knots becoming north late in the
morning, then becoming northeast in the afternoon. slight chance
of thunderstorms in the morning. slight chance of rain showers
through the day. waves 3 to 5 feet subsiding to 1 to 3 feet in
the afternoon. a small craft advisory may be needed. 
.monday night...northeast wind 20 to 25 knots with gusts to
around 30 knots. rain showers likely in the evening. slight
chance of thunderstorms through the night. rain showers after
midnight. waves 3 to 5 feet building to 5 to 8 feet after
midnight. waves occasionally to 10 feet. a small craft advisory
may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721647

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz146-172200-
port wing to sand island wi-
123 pm cdt sun may 17 2026

...small craft advisory in effect until 1 am cdt monday...

.rest of today...northeast wind 20 to 25 knots with gusts to
around 30 knots. mostly cloudy. waves 4 to 6 feet building to
6 to 9 feet late. waves occasionally to 12 feet. 
.tonight...northeast wind 20 to 25 knots with gusts to around
30 knots easing to 10 to 15 knots early in the morning. chance of
rain showers in the evening. chance of thunderstorms through the
night. rain showers after midnight. waves 7 to 10 feet subsiding
to 4 to 6 feet. waves occasionally to 13 feet. 
.monday...north wind 5 to 10 knots becoming northwest late in the
morning, then becoming southwest early in the afternoon becoming
east late in the afternoon. chance of rain showers and slight
chance of thunderstorms in the morning, then slight chance of
rain showers in the afternoon. waves 3 to 5 feet subsiding to
1 to 3 feet late in the afternoon. a small craft advisory may be
needed. 
.monday night...east wind 10 to 15 knots with gusts to around
25 knots becoming northeast 20 to 25 knots with gusts to around
30 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 4 to 6 feet. waves
occasionally to 8 feet. a small craft advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721648

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz147-172200-
sand island to bayfield wi-
123 pm cdt sun may 17 2026

...small craft advisory in effect until 1 am cdt monday...

.rest of today...northeast wind 20 to 25 knots. gusts up to
30 knots increasing to 35 knots late. mostly cloudy. waves 4 to
6 feet building to 6 to 9 feet late. waves occasionally to
12 feet. 
.tonight...northeast wind 20 to 25 knots with gusts to around
30 knots easing to 10 to 15 knots with gusts to around 20 knots
after midnight. chance of rain showers in the evening. chance of
thunderstorms through the night. rain showers after midnight.
waves 7 to 10 feet subsiding to 4 to 7 feet after midnight. waves
occasionally to 12 feet. 
.monday...northwest wind 5 knots becoming east late in the
afternoon. chance of rain showers and slight chance of
thunderstorms in the morning, then slight chance of rain showers
in the afternoon. waves 3 to 5 feet subsiding to 1 to 3 feet late
in the afternoon. a small craft advisory may be needed. 
.monday night...northeast wind 15 to 20 knots with gusts to
around 30 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 4 to 7 feet in the late
evening and overnight. waves occasionally to 9 feet. a small
craft advisory may be needed. 

$$
fzus53 kdlh 171823
nshdlh
expires:202605172200;;721651

nearshore marine forecast
national weather service duluth mn
123 pm cdt sun may 17 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.


lsz148-172200-
oak point to saxon harbor wi-
123 pm cdt sun may 17 2026

...small craft advisory in effect until 10 pm cdt this evening...

.rest of today...northeast wind 20 to 25 knots with gusts to
around 30 knots. slight chance of rain showers late. waves 4 to
6 feet building to 5 to 8 feet late. waves occasionally to
10 feet. 
.tonight...northeast wind 15 to 20 knots with gusts to around
30 knots easing to 5 to 10 knots early in the morning. chance of
rain showers in the evening. chance of thunderstorms through the
night. rain showers after midnight. waves 5 to 8 feet subsiding
to 3 to 5 feet after midnight. waves occasionally to 10 feet. 
.monday...northwest wind 5 knots becoming northeast late in the
afternoon. chance of rain showers and slight chance of
thunderstorms in the morning, then slight chance of rain showers
in the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet in
the afternoon. 
.monday night...northeast wind 5 to 10 knots with gusts to around
20 knots rising to 15 to 20 knots with gusts to around 30 knots
in the late evening and overnight. rain showers likely and slight
chance of thunderstorms in the evening, then rain showers and
chance of thunderstorms after midnight. waves 5 to 8 feet. waves
occasionally to 10 feet. a small craft advisory may be needed. 

$$
fzus53 kdtx 171343
nshdtx
expires:202605172145;;711952

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lhz442-172145-
harbor beach to port sanilac mi-
943 am edt sun may 17 2026

.rest of today...northeast winds 5 to 10 knots. partly cloudy. a
slight chance of showers and thunderstorms in the afternoon.
waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and overnight. mostly cloudy. a
slight chance of showers and thunderstorms until early morning.
waves 1 to 3 feet. 
.monday...south winds 15 to 20 knots. partly cloudy early in the
morning becoming mostly sunny. a chance of showers early in the
afternoon. waves 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots in the late evening and overnight. mostly clear
early in the evening becoming mostly cloudy. light showers likely
and a chance of thunderstorms. 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 171343
nshdtx
expires:202605172145;;711949

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lhz422-172145-
inner saginaw bay sw of point au gres to bay port mi-
943 am edt sun may 17 2026

.rest of today...northeast winds 10 to 15 knots increasing to
15 to 20 knots in the afternoon. partly cloudy late in the
morning, then mostly cloudy with a chance of showers and a slight
chance of thunderstorms in the afternoon. waves 1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots in the late evening and early morning, then becoming
south 15 to 20 knots after midnight. mostly cloudy with a chance
of showers and a slight chance of thunderstorms until early
morning, then partly cloudy after midnight. waves 1 to 3 feet. 
.monday...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 becoming mostly sunny in the late morning and early
afternoon becoming partly cloudy. a chance of showers in the late
morning and afternoon. waves 3 to 5 feet. waves occasionally around 7
feet. a small craft advisory may be needed.
.monday night...southwest winds 20 to 25 knots with gusts to
30 knots diminishing to 15 to 20 knots in the late evening and
overnight. partly cloudy early in the evening. light showers and
a chance of thunderstorms. waves 2 to 4 feet. 

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

$$
fzus53 kdtx 171343
nshdtx
expires:202605172145;;711951

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lhz441-172145-
port austin to harbor beach mi-
943 am edt sun may 17 2026

.rest of today...northeast winds 5 to 10 knots. partly cloudy
late in the morning, then mostly cloudy with a slight chance of
showers and thunderstorms in the afternoon. waves 2 feet or less.
.tonight...east winds 10 to 15 knots veering to the south after
midnight. mostly cloudy until early morning becoming partly
cloudy. a chance of showers and thunderstorms until early
morning. waves 1 to 3 feet. 
.monday...south winds 15 to 20 knots. partly cloudy becoming
mostly sunny in the late morning and early afternoon becoming
partly cloudy. a chance of showers early in the afternoon. waves
2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots. partly cloudy
early in the evening. light showers and a chance of
thunderstorms. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 

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

$$
fzus53 kdtx 171343
nshdtx
expires:202605172145;;711953

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lhz443-172145-
port sanilac to port huron mi-
943 am edt sun may 17 2026

.rest of today...north winds 5 to 10 knots. partly cloudy. a
slight chance of showers and thunderstorms in the afternoon.
waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots in the late evening and overnight. mostly cloudy with a
slight chance of showers and thunderstorms early in the evening,
then partly cloudy in the late evening and overnight. waves
2 feet or less. 
.monday...south winds 15 to 20 knots. partly cloudy early in the
morning then clearing. a slight chance of. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots after midnight. mostly clear early in the evening
becoming mostly cloudy. a chance of thunderstorms until early
morning. light showers likely in the late evening and overnight.
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 171343
nshdtx
expires:202605172145;;711954

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lez444-172145-
michigan waters of lake erie from detroit river to north cape mi-
943 am edt sun may 17 2026

.rest of today...south winds 5 to 10 knots backing to the
southeast late in the afternoon. partly cloudy late in the
morning, then mostly sunny with a slight chance of showers and
thunderstorms in the afternoon. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots becoming south 10 to
15 knots in the late evening and overnight. mostly clear. waves
2 feet or less. 
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots in the late morning and afternoon. mostly sunny. a
chance of showers early in the afternoon. waves 1 to 3 feet. 
.monday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots in the late evening and overnight. partly cloudy
with a chance of showers. waves 1 to 3 feet. 

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

the water temperature at belle isle is missing.

$$
fzus53 kdtx 171343
nshdtx
expires:202605172145;;711950

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
943 am edt sun may 17 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.


lhz421-172145-
outer saginaw bay sw of alabaster to port austin mi to inner
saginaw bay-
943 am edt sun may 17 2026

.rest of today...northeast winds 10 to 15 knots increasing to
15 to 20 knots in the afternoon. partly cloudy late in the
morning, then mostly cloudy with a slight chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots in the late evening and early morning, then becoming
south 15 to 20 knots after midnight. mostly cloudy with a chance
of showers and thunderstorms early in the evening, then mostly
cloudy with a chance of thunderstorms and a slight chance of
showers in the late evening and early morning. partly cloudy
after midnight. waves 1 to 3 feet. 
.monday...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 early in the morning then clearing. a chance of showers
early in the afternoon. waves 3 to 5 feet. waves occasionally around
7 feet. a small craft advisory may be needed.
.monday night...southwest winds 20 to 25 knots diminishing to
15 to 20 knots in the late evening and overnight. mostly clear
early in the evening becoming mostly cloudy. light showers likely
and a chance of thunderstorms. waves 3 to 5 feet. waves
occasionally around 7 feet. 

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

$$
fzus53 kgrb 171816
nshgrb
expires:202605172200;;721202

nearshore marine forecast
national weather service green bay wi
116 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz541-172200-
rock island passage to sturgeon bay wi-
116 pm cdt sun may 17 2026

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

.this afternoon...ne wind 10 to 20 kts. waves 2 to 4 ft. rain
showers and a slight chance of thunderstorms. 
.tonight...e wind 10 to 20 kts veering s 15 to 25 kts after
midnight. waves 3 to 5 ft building to 4 to 7 ft after midnight.
patchy dense fog. showers in the evening. a chance of
thunderstorms. a chance of showers after midnight. 
.monday...s wind 15 to 25 kts. waves 5 to 8 ft. a chance of
showers and thunderstorms. 
.monday night...s wind 15 to 25 kts. waves 5 to 8 ft. a chance of
showers in the evening. a chance of thunderstorms. rain showers
after midnight.  

$$
fzus53 kgrb 171816
nshgrb
expires:202605172200;;721203

nearshore marine forecast
national weather service green bay wi
116 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-172200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
116 pm cdt sun may 17 2026

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

.this afternoon...ne wind 10 to 20 kts. waves 3 to 5 ft. rain
showers likely and a chance of thunderstorms. 
.tonight...e wind 10 to 15 kts veering s 15 to 25 kts in the late
evening and overnight. waves 4 to 7 ft. patchy dense fog. a
chance of showers and a slight chance of thunderstorms. 
.monday...s wind 15 to 25 kts. waves 4 to 7 ft. a chance of
showers and thunderstorms. 
.monday night...s wind 10 to 15 kts increasing to 15 to 25 kts in
the late evening and overnight. waves 5 to 8 ft. a chance of
showers in the evening. a chance of thunderstorms. rain showers
after midnight.  

$$
fzus53 kgrb 171816
nshgrb
expires:202605172200;;721201

nearshore marine forecast
national weather service green bay wi
116 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz521-522-172200-
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-
116 pm cdt sun may 17 2026

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

.this afternoon...ne wind 10 to 20 kts. waves 1 to 3 ft. rain
showers and a slight chance of thunderstorms. 
.tonight...e wind 10 to 15 kts veering se 10 to 20 kts, then
veering s 15 to 25 kts after midnight. waves 2 to 4 ft. patchy
dense fog. a chance of showers and thunderstorms. 
.monday...s wind 10 to 20 kts. waves 2 to 4 ft. a chance of
showers and thunderstorms. 
.monday night...s wind 10 to 15 kts backing e, then veering se
after midnight. waves 2 to 4 ft. a chance of showers in the
evening. a chance of thunderstorms. rain showers after midnight. 

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721657

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180800-
st joseph to south haven mi-
223 pm edt sun may 17 2026

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

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721656

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180800-
south haven to holland mi-
223 pm edt sun may 17 2026

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

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721655

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180800-
holland to grand haven mi-
223 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...south winds 10 to 15 knots. mostly cloudy
with a slight chance of showers and thunderstorms. waves 1 foot or
less. 
.tonight...south winds 15 to 25 knots. partly cloudy. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 4 to 6 feet. 
.monday night...south winds 20 to 25 knots. mostly cloudy with rain
showers likely and a chance of thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. waves
6 to 8 feet. 
.tuesday night...northwest winds 20 to 25 knots becoming around
20 knots after midnight. mostly cloudy. waves 4 to 6 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
1 foot or less. 
.friday...east winds 10 to 15 knots backing northeast early in the
afternoon. mostly cloudy. waves around 1 foot. 

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721654

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180800-
grand haven to whitehall mi-
223 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...southeast winds 10 to 15 knots. mostly
cloudy with a slight chance of showers and thunderstorms. waves
around 1 foot. 
.tonight...south winds 15 to 25 knots increasing to 30 knots after
midnight. mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
waves 1 to 3 feet building to 4 to 6 feet in the late evening and
overnight. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers and a chance of thunderstorms. waves 6 to
9 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...east winds 10 to 15 knots backing north early in the
afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots backing northeast early in the
afternoon. partly sunny. waves around 1 foot. 

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721653

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180800-
whitehall to pentwater mi-
223 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

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

$$
fzus53 kgrr 171823
nshgrr
expires:202605180800;;721652

nearshore marine forecast
national weather service grand rapids mi
223 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180800-
pentwater to manistee mi-
223 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...northeast winds 10 to 15 knots. rain
showers likely and a chance of thunderstorms. waves 1 to 2 feet. 
.tonight...east winds 10 to 20 knots becoming south to 30 knots in
the late evening and overnight. mostly cloudy in the evening then
becoming partly cloudy. a chance of showers and thunderstorms. waves
1 to 2 feet building to 4 to 6 feet. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a slight chance of thunderstorms.
waves 6 to 9 feet. 
.tuesday night...northwest winds 15 to 25 knots veering north after
midnight. partly cloudy. waves 6 to 8 feet. 
.wednesday...north winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.thursday...northeast winds 5 to 10 knots backing north 10 to
15 knots early in the afternoon. sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots backing north early in the
afternoon. partly sunny. waves 1 foot or less. 

$$
fzus53 kiwx 171350
nshiwx
expires:202605172015;;712129

nearshore marine forecast
national weather service northern indiana
950 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-172015-
new buffalo mi to st joseph mi-
950 am edt sun may 17 2026

.this afternoon...south winds 5 to 15 knots increasing to 10 to 
20 knots this afternoon. a few gusts up to 25 knots possible this
afternoon. partly sunny. waves 1 foot or less.
.tonight...south winds 10 to 15 knots. partly cloudy. waves 1 to
2 feet. 
.monday...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the afternoon.
waves 1 to 3 feet. 
.monday night...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 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 kiwx 171350
nshiwx
expires:202605172015;;712128

nearshore marine forecast
national weather service northern indiana
950 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz046-172015-
michigan city in to new buffalo mi-
950 am edt sun may 17 2026

.this afternoon...south winds 5 to 15 knots increasing to 10 to 20
knots this afternoon. a few gusts up to 25 knots possible in the
afternoon. partly sunny. waves 2 feet or less.
.tonight...south winds 10 to 15 knots. partly cloudy. waves 1 to
2 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 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 171434 cca
nshlot
expires:202605172130;;713827

nearshore marine forecast...corrected
national weather service chicago/romeoville il
934 am cdt sun may 17 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.


lmz740-172130-
winthrop harbor to wilmette harbor il-
934 am cdt sun may 17 2026

.rest of today...northeast winds 10 to 20 kt becoming southeast 
and increasing to 15 to 25 kt in the afternoon. scattered showers
and perhaps a thunderstorm mainly midday and into the early 
afternoon. patchy fog possible in the afternoon. waves 1 to 3 ft 
building to 2 to 4 ft.
.tonight...south winds 15 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy. waves 2 to 4 ft. 
.monday...southwest winds 20 to 25 kt. showers likely and a 
chance of thunderstorms. waves 2 to 4 ft. a small craft advisory
may be needed. 
.monday night...south winds 15 to 25 kt. chance of showers and 
slight chance of thunderstorms. waves 2 to 4 ft. 

$$
fzus53 klot 171434 cca
nshlot
expires:202605172130;;713828

nearshore marine forecast...corrected
national weather service chicago/romeoville il
934 am cdt sun may 17 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.


lmz741-742-172130-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
934 am cdt sun may 17 2026

...small craft advisory in effect from 1 pm cdt this afternoon
through this evening...

.rest of today...northeast winds 10 to 20 kt becoming south and 
increasing to 20 to 25 kt in the afternoon. patchy fog, mainly
through early afternoon. isolated showers mainly midday and early
afternoon. waves 1 to 3 ft building to 2 to 4 ft.
.tonight...south winds 20 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy. waves 2 to 4 ft. 
.monday...south winds 20 to 25 kt. showers likely and a chance of
thunderstorms. waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt. slight chance of showers
in the evening, then chance of showers and slight chance of 
thunderstorms overnight. waves 2 to 4 ft. 

$$
fzus53 klot 171434 cca
nshlot
expires:202605172130;;713829

nearshore marine forecast...corrected
national weather service chicago/romeoville il
934 am cdt sun may 17 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>745-172130-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
934 am cdt sun may 17 2026

...small craft advisory in effect from 1 pm cdt this afternoon
through this evening...

.rest of today...south winds 10 to 15 kt increasing to 20 to
25 kt in the afternoon. mostly cloudy. waves 1 to 3 ft. 
.tonight...south winds 20 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy in the evening then clearing. waves 2 to 4 ft. 
.monday...south winds 20 to 25 kt. showers likely and a chance of
thunderstorms. waves 2 to 4 ft. 
.monday night...south winds 20 to 25 kt. chance of showers and
slight chance of thunderstorms. waves 2 to 4 ft.  

$$
fzus53 kmkx 171810
nshmkx
expires:202605172200;;721012

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-172200-
sheboygan to port washington wi-
110 pm cdt sun may 17 2026

.rest of today...northeast wind 10 to 15 knots with gusts to
around 20 knots. rain showers and slight chance of thunderstorms
early in the afternoon, then showers likely and a chance of
thunderstorms late in the afternoon. patchy fog late in the
afternoon. waves 2 to 4 feet. 
.tonight...northeast wind 10 to 15 knots veering southeast with
gusts to around 20 knots late in the evening, then becoming south
15 to 20 knots after midnight. patchy fog through the night.
chance of thunderstorms through around midnight. chance of
showers through the night. slight chance of thunderstorms after
midnight. waves 3 to 4 feet building to 4 to 6 feet after
midnight. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots late
in the morning, then rising to 15 to 25 knots early in the
afternoon becoming 15 to 20 knots late in the afternoon. slight
chance of thunderstorms in the morning. chance of showers through
the day. chance of thunderstorms in the afternoon. waves 5 to
7 feet subsiding to 4 to 6 feet late in the afternoon. a small
craft advisory may be needed. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers through around
midnight. chance of thunderstorms through the night. rain showers
likely after midnight. waves 4 to 6 feet. 

$$
fzus53 kmkx 171810
nshmkx
expires:202605172200;;721015

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-172200-
wind point wi to winthrop harbor il-
110 pm cdt sun may 17 2026

.rest of today...east wind 10 to 15 knots veering southeast late
in the afternoon. gusts up to 20 knots. patchy fog through the
day. chance of showers and slight chance of thunderstorms through
the day. waves 1 to 3 feet building to 2 to 4 feet late in the
afternoon. 
.tonight...southeast wind 10 to 15 knots becoming south 15 to
20 knots in the late evening and overnight. chance of showers and
slight chance of thunderstorms after midnight. waves 3 to 4 feet.
.monday...south wind 15 to 20 knots. gusts up to 25 knots. rain
showers likely in the morning. chance of thunderstorms through
the day. chance of showers in the afternoon. waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. chance of showers and thunderstorms. waves
3 to 4 feet. a small craft advisory may be needed. 

$$
fzus53 kmkx 171810
nshmkx
expires:202605172200;;721014

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-172200-
north point light to wind point wi-
110 pm cdt sun may 17 2026

.rest of today...northeast wind 10 to 15 knots veering east late
in the afternoon. rain showers likely early in the afternoon.
slight chance of thunderstorms through the day. chance of showers
late in the afternoon. patchy fog late in the afternoon. waves
2 to 4 feet. 
.tonight...southeast wind 10 to 15 knots becoming south 15 to
20 knots in the late evening and overnight. chance of showers and
slight chance of thunderstorms after midnight. waves 3 to 4 feet.
.monday...south wind 15 to 20 knots becoming 10 to 20 knots in
the late morning and early afternoon, then becoming 15 to
20 knots late in the afternoon. gusts up to 25 knots. rain
showers likely in the morning. chance of thunderstorms through
the day. chance of showers in the afternoon. waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. chance of showers and thunderstorms. waves
3 to 4 feet. a small craft advisory may be needed. 

$$
fzus53 kmkx 171810
nshmkx
expires:202605172200;;721013

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-172200-
port washington to north point light wi-
110 pm cdt sun may 17 2026

.rest of today...northeast wind 10 to 15 knots. rain showers
early in the afternoon. slight chance of thunderstorms through
the day. rain showers likely late in the afternoon. patchy fog
late in the afternoon. waves 2 to 4 feet. 
.tonight...east wind 10 to 15 knots veering southeast with gusts
to around 20 knots late in the evening, then becoming south 15 to
20 knots after midnight. patchy fog through around midnight.
chance of showers and slight chance of thunderstorms after
midnight. waves 3 to 4 feet building to 4 to 6 feet early in the
morning. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots early
in the afternoon, then becoming 15 to 20 knots late in the
afternoon. gusts up to 25 knots. chance of showers and
thunderstorms. waves 3 to 5 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. chance of showers and thunderstorms. waves
3 to 4 feet building to 3 to 5 feet early in the morning. a small
craft advisory may be needed. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714489

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lmz248-250-172000-
seul choix point to point detour mi-
5nm east of a line from fairport mi to rock island passage-
1102 am edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.rest of today...east wind 10 to 20 knots. cloudy. a chance of
showers by late morning, then showers likely late. waves 1 to
2 feet building to 2 to 3 feet. 
.tonight...east wind 20 to 25 knots veering south late. showers
likely in the evening. a chance of thunderstorms through the
night. a chance of showers after midnight. waves building to 2 to
4 feet. 
.monday...south wind 15 to 25 knots. showers likely and a slight
chance of thunderstorms. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest wind 10 to 15 knots backing south 15 to
20 knots after midnight. showers and a chance of thunderstorms.
waves subsiding to 3 to 5 feet occasionally to 7 feet, then
building to 3 to 6 feet occasionally to 8 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714488

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lmz221-172000-
green bay north of line from cedar river mi to rock island
passage-
1102 am edt sun may 17 2026

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

.rest of today...east wind 10 to 15 knots. cloudy. a chance of
showers by late morning, then showers likely late. waves calm to
1 foot building to 1 to 2 feet. 
.tonight...east wind 10 to 15 knots veering south 15 to 20 knots
late. gusts up to 27 knots. cloudy. showers likely and a chance
of thunderstorms through late evening, then a chance of showers
and thunderstorms by midnight. waves building to 2 to 4 feet. 
.monday...south wind 10 to 20 knots with gusts up to 27 knots.
showers likely and a slight chance of thunderstorms. waves 2 to
4 feet. 
.monday night...south wind 10 to 15 knots backing southeast 10 to
20 knots after midnight. showers and a chance of thunderstorms.
waves subsiding to 2 to 3 feet, then building to 2 to 4 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714490

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz240-241-172000-
saxon harbor wi to black river mi-
black river to ontonagon mi-
1102 am edt sun may 17 2026 /1002 am cdt sun may 17 2026/

...small craft advisory in effect through late tonight...

.rest of today...northeast wind 15 to 25 knots with gusts up to
32 knots. mostly cloudy. a slight chance of rain showers by late
morning, then a chance of rain showers late. waves 2 to 3 feet
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 4 to 7 feet occasionally to 9 feet. 
.tonight...east wind 10 to 20 knots veering southeast less than
10 knots late. gusts up to 27 knots. rain showers and a chance of
thunderstorms through midnight, then a chance of showers and
thunderstorms late. waves subsiding to 2 to 4 feet. 
.monday...northwest wind 5 to 15 knots veering northeast 10 to
15 knots in the afternoon. a chance of rain showers and a slight
chance of thunderstorms in the morning, then rain showers likely
and a chance of thunderstorms in the afternoon. waves subsiding
to 2 to 3 feet, then building to 2 to 4 feet. 
.monday night...northeast wind 10 to 20 knots. rain showers and a
slight chance of thunderstorms. waves building to 6 to 9 feet
occasionally to 11 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714491

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz242-243-172000-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1102 am edt sun may 17 2026

...small craft advisory in effect through late tonight...

.rest of today...east wind 15 to 20 knots. mostly cloudy. a
slight chance of rain showers late. waves 1 to 2 feet building to
3 to 5 feet occasionally to 7 feet. 
.tonight...east wind 15 to 20 knots veering southeast 10 to
15 knots late. gusts up to 27 knots. rain showers and a chance of
thunderstorms. waves subsiding to 2 to 3 feet. 
.monday...north wind 5 to 15 knots. rain showers likely and a
chance of thunderstorms. waves subsiding to 1 to 2 feet, then
building to 2 to 4 feet. 
.monday night...northeast wind 15 to 20 knots. a chance of
showers and thunderstorms in the evening, then rain showers and a
slight chance of thunderstorms after midnight. waves building to
5 to 8 feet occasionally to 10 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714492

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz244-245-172000-
eagle river to manitou island mi-
manitou island to point isabelle mi-
1102 am edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday afternoon...

.rest of today...east wind 10 to 15 knots. mostly cloudy. waves
1 to 2 feet building to 2 to 3 feet. 
.tonight...east wind 15 to 20 knots veering southeast 10 to
20 knots late. a chance of showers and thunderstorms through late
evening, then rain showers and a chance of thunderstorms by
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.monday...southeast wind 10 to 15 knots backing north 10 to
20 knots in the afternoon. a chance of rain showers and a slight
chance of thunderstorms in the morning, then rain showers likely
and a slight chance of thunderstorms in the afternoon. waves
subsiding to 2 to 4 feet. 
.monday night...north wind 15 to 20 knots veering northeast after
midnight. gusts up to 27 knots. cloudy. a chance of rain showers
and a slight chance of thunderstorms in the evening, then rain
showers and a slight chance of thunderstorms after midnight.
waves building to 5 to 8 feet occasionally to 10 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714493

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz246-172000-
point isabelle to lower entrance of portage canal mi-
1102 am edt sun may 17 2026

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

.rest of today...east wind 15 to 20 knots with gusts up to
27 knots. mostly cloudy. a slight chance of rain showers late.
waves 1 to 2 feet building to 2 to 4 feet. 
.tonight...east wind 15 to 25 knots. rain showers and a chance of
thunderstorms. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.monday...east wind less than 10 knots backing north 10 to
15 knots in the afternoon. rain showers likely and a chance of
thunderstorms. waves subsiding to 1 to 2 feet. 
.monday night...north wind 10 to 15 knots veering northeast 15 to
20 knots after midnight. cloudy. a chance of showers and
thunderstorms in the evening, then rain showers and a slight
chance of thunderstorms after midnight. waves building to 2 to
4 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714497

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz250-172000-
munising to grand marais mi-
1102 am edt sun may 17 2026

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

.rest of today...northeast wind 10 to 15 knots. mostly cloudy. a
slight chance of rain showers late. waves 2 to 3 feet. 
.tonight...east wind 10 to 20 knots veering southeast 20 to
25 knots by midnight, then veering south late. gusts up to
32 knots. showers likely and a chance of thunderstorms through
midnight, then a chance of showers and thunderstorms late. waves
building to 2 to 4 feet. 
.monday...south wind 15 to 20 knots veering southwest 10 to
15 knots in the afternoon. gusts up to 28 knots. showers likely
and a slight chance of thunderstorms in the morning, then showers
and a chance of thunderstorms in the afternoon. waves subsiding
to 1 to 2 feet. 
.monday night...west wind less than 10 knots backing southwest
5 to 15 knots after midnight. cloudy. a chance of showers and
thunderstorms in the evening, then rain showers and a slight
chance of thunderstorms after midnight. waves building to 2 to
4 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714496

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz249-172000-
marquette to munising mi-
1102 am edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday morning...

.rest of today...northeast wind 10 to 15 knots. mostly cloudy. a
chance of rain showers late. waves 2 to 3 feet. 
.tonight...east wind 10 to 20 knots veering southeast 15 to
25 knots by midnight, then veering south 20 to 25 knots late.
cloudy. rain showers likely and a chance of thunderstorms through
midnight, then a chance of showers and thunderstorms late. waves
building to 2 to 4 feet. 
.monday...south wind 15 to 20 knots veering southwest 10 to
15 knots in the afternoon. showers likely and a slight chance of
thunderstorms in the morning, then showers and a chance of
thunderstorms in the afternoon. waves subsiding to 1 to 2 feet,
then building to 2 to 3 feet. 
.monday night...northwest wind 10 to 15 knots. cloudy. a chance
of showers and thunderstorms in the evening, then rain showers
and a slight chance of thunderstorms after midnight. waves
building to 2 to 4 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714495

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz248-172000-
huron islands to marquette mi-
1102 am edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday morning...

.rest of today...east wind 10 to 15 knots with gusts up to
22 knots. mostly cloudy. a slight chance of rain showers late.
waves 1 to 2 feet building to 2 to 3 feet. 
.tonight...southeast wind 10 to 20 knots becoming 15 to 20 knots
late. gusts up to 29 knots. rain showers likely and a chance of
thunderstorms. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...south wind 10 to 20 knots veering northwest 10 to
15 knots in the afternoon. a chance of rain showers and a slight
chance of thunderstorms in the morning, then rain showers and a
chance of thunderstorms in the afternoon. waves subsiding to 1 to
2 feet, then building to 2 to 3 feet. 
.monday night...north wind 10 to 15 knots veering northeast after
midnight. rain showers likely and a chance of thunderstorms in
the evening, then rain showers and a slight chance of
thunderstorms after midnight. waves subsiding to 1 to 2 feet,
then building to 3 to 5 feet occasionally to 7 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714498

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz251-172000-
grand marais to whitefish point mi-
1102 am edt sun may 17 2026

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

.rest of today...northeast wind 10 to 15 knots. mostly cloudy.
waves 1 to 2 feet. 
.tonight...east wind 10 to 20 knots veering southeast 20 to
25 knots by midnight. rain showers likely and a chance of
thunderstorms through midnight, then a chance of showers and
thunderstorms late. waves building to 3 to 5 feet occasionally to
7 feet. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots in
the afternoon. gusts up to 28 knots. a chance of showers and
thunderstorms in the morning, then showers and a slight chance of
thunderstorms in the afternoon. waves subsiding to 1 to 2 feet. 
.monday night...southwest wind less than 10 knots backing south
5 to 15 knots after midnight. cloudy. a chance of rain showers
and a slight chance of thunderstorms in the evening, then rain
showers likely and a slight chance of thunderstorms after
midnight. waves building to 2 to 3 feet. 

$$
fzus53 kmqt 171502
nshmqt
expires:202605172000;;714494

nearshore marine forecast
national weather service marquette mi
1102 am edt sun may 17 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.


lsz247-172000-
lower entrance of portage canal to huron islands mi including
keweenaw and huron bays-
1102 am edt sun may 17 2026

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

.rest of today...east wind 15 to 20 knots with gusts up to
27 knots. mostly cloudy. a slight chance of rain showers late.
waves 1 to 2 feet building to 2 to 4 feet. 
.tonight...east wind 10 to 20 knots. rain showers and a chance of
thunderstorms. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.monday...southwest wind less than 10 knots veering north 10 to
15 knots in the afternoon. rain showers likely and a chance of
thunderstorms. waves subsiding to 1 to 2 feet. 
.monday night...north wind 10 to 15 knots veering northeast 10 to
20 knots after midnight. rain showers likely and a chance of
thunderstorms in the evening, then rain showers and a slight
chance of thunderstorms after midnight. waves building to 2 to
4 feet. 

$$
© Copyright 2026 WeatherFlow, Inc · Contact Us ·