fzus53 kapx 310717
nshapx
expires:202608311530;;652468

nearshore marine forecast
national weather service gaylord mi
317 am edt mon aug 31 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.


lmz346-311530-
manistee to point betsie mi-
317 am edt mon aug 31 2026

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

.today...south wind 10 to 15 knots with gusts up to 25 knots. 
patchy fog early in the morning. chance of thunderstorms early in 
the morning. waves 2 feet or less building to 2 to 4 feet. 
.tonight...southwest wind 5 to 10 knots. patchy fog. slight
chance of showers. waves 2 to 4 feet. 
.tuesday...southwest wind 5 to 10 knots. patchy fog. waves
2 feet or less. 
.tuesday night...southwest wind 5 to 10 knots. chance of showers.
waves 2 feet or less. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 310751
nshgrb
expires:202608311000;;653258

nearshore marine forecast
national weather service green bay wi
251 am cdt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-311000-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
251 am cdt mon aug 31 2026

.rest of the night...s wind 5 to 10 kts. waves 2 to 4 ft. patchy
fog. a chance of showers and thunderstorms. 
.monday...s wind 10 to 15 kts. waves 3 to 5 ft. patchy fog in the
morning. a chance of showers and a slight chance of thunderstorms
in the morning. a small craft advisory may be needed. 
.monday night...s wind 5 to 10 kts veering nw after midnight.
waves 3 to 5 ft. a chance of showers and thunderstorms in the
evening. patchy fog after midnight. a small craft advisory may be
needed. 
.tuesday...sw wind around 5 kts backing s 10 to 15 kts in the
late morning and afternoon. waves 2 ft or less. partly sunny.  

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;652997

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz847-310845-
grand haven to whitehall mi-
336 am edt mon aug 31 2026

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

.rest of tonight...south winds 10 to 15 knots. mostly cloudy with a
slight chance of showers and thunderstorms. waves 1 to 3 feet. 
.monday...south winds 15 to 20 knots. partly sunny with a chance of
showers and thunderstorms. waves 3 to 5 feet. 
.monday night...southwest winds 10 to 20 knots. partly cloudy. waves
3 to 5 feet. 
.tuesday...southwest winds 10 to 15 knots. mostly sunny with a
slight chance of showers and thunderstorms. waves 1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots. partly cloudy with
a slight chance of showers and thunderstorms. waves 1 to 2 feet. 
.wednesday...southwest winds around 10 knots. partly sunny. waves
1 to 2 feet. 
.thursday...northeast winds around 10 knots backing north in the
late morning and afternoon. partly sunny with a chance of rain
showers. waves 1 foot or less. 
.friday...east winds around 10 knots backing northwest early in the
afternoon. mostly sunny. waves less than 1 foot. 

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;652998

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz846-310845-
holland to grand haven mi-
336 am edt mon aug 31 2026

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

.rest of tonight...south winds 10 to 15 knots. mostly cloudy with a
slight chance of showers and thunderstorms. waves 1 to 2 feet. 
.monday...south winds 15 to 20 knots. mostly cloudy with a chance of
rain showers and a slight chance of thunderstorms. waves 2 to 4 feet
building to 3 to 5 feet in the late morning and afternoon. 
.monday night...southwest winds 10 to 20 knots. partly cloudy. waves
3 to 5 feet subsiding to 2 to 4 feet after midnight. 
.tuesday...southwest winds 10 to 15 knots. mostly sunny with a
chance of rain showers and a slight chance of thunderstorms. waves
1 to 3 feet. 
.tuesday night...southwest winds 10 to 15 knots. partly cloudy with
a slight chance of showers and thunderstorms. waves 1 to 2 feet. 
.wednesday...southwest winds around 10 knots. mostly sunny. waves
around 1 foot. 
.thursday...east winds around 10 knots backing northwest in the late
morning and afternoon. partly sunny with a chance of rain showers.
waves around 1 foot. 
.friday...east winds around 10 knots backing northwest early in the
afternoon. mostly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;652999

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz845-310845-
south haven to holland mi-
336 am edt mon aug 31 2026

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

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;653000

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz844-310845-
st joseph to south haven mi-
336 am edt mon aug 31 2026

.rest of tonight...south winds 10 to 15 knots. mostly cloudy with a
slight chance of showers and thunderstorms. waves around 1 foot. 
.monday...south winds 10 to 20 knots. partly sunny with a chance of
rain showers and a slight chance of thunderstorms. waves 1 to
3 feet. 
.monday night...southwest winds 10 to 15 knots. partly cloudy. waves
1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots. mostly sunny with a
slight chance of showers and thunderstorms. waves 1 to 2 feet. 
.tuesday night...southwest winds around 10 knots. partly cloudy with
a slight chance of showers and thunderstorms. waves around 1 foot. 
.wednesday...southwest winds around 10 knots. mostly sunny. waves
1 foot or less. 
.thursday...southeast winds 5 to 10 knots veering northwest in the
late morning and afternoon. partly sunny with a chance of showers
and thunderstorms. waves around 1 foot. 
.friday...northeast winds 5 to 10 knots backing north early in the
afternoon. mostly sunny. waves less than 1 foot. 

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;652995

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz849-310845-
pentwater to manistee mi-
336 am edt mon aug 31 2026

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

.rest of tonight...south winds 10 to 15 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 1 to 3 feet. 
.monday...south winds 10 to 20 knots. partly sunny with a chance of
showers and thunderstorms. waves 2 to 4 feet building to 3 to 5 feet
in the late morning and afternoon. 
.monday night...southwest winds 10 to 20 knots. partly cloudy.
patchy fog. waves 3 to 5 feet. 
.tuesday...southwest winds 5 to 15 knots. partly sunny with a slight
chance of showers and thunderstorms. patchy fog. waves 1 to 3 feet. 
.tuesday night...southwest winds 5 to 15 knots veering west after
midnight. mostly cloudy with a chance of rain showers and a slight
chance of thunderstorms. waves 1 to 2 feet. 
.wednesday...north winds 5 to 10 knots veering northeast in the late
morning and early afternoon, then backing north early in the
afternoon. partly sunny with a chance of rain showers. waves around
1 foot. 
.thursday...northeast winds 5 to 10 knots backing north early in the
afternoon. partly sunny. waves less than 1 foot. 
.friday...east winds 5 to 10 knots backing north 10 to 15 knots
early in the afternoon. mostly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 310736
nshgrr
expires:202608310845;;652996

nearshore marine forecast
national weather service grand rapids mi
336 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz848-310845-
whitehall to pentwater mi-
336 am edt mon aug 31 2026

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

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

$$

fzus53 kiwx 310750
nshiwx
expires:202608311415;;653253

nearshore marine forecast
national weather service northern indiana
350 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz046-311415-
michigan city in to new buffalo mi-
350 am edt mon aug 31 2026

.today...south winds around 10 knots becoming southwest 10 to 20
knots. a chance of showers with a slight chance of thunderstorms 
this morning, then a slight chance of showers and thunderstorms 
this afternoon. waves 1 foot or less. 
.tonight...southwest winds around 10 knots. a slight chance of
showers in the evening. waves 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots. a slight chance of
showers and thunderstorms. waves 1 foot or less. 
.tuesday night...southwest winds 5 to 10 knots. a slight chance
of showers and thunderstorms in the evening. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 73 degrees and at michigan
city is 63 degrees.

$$

fzus53 kiwx 310750
nshiwx
expires:202608311415;;653254

nearshore marine forecast
national weather service northern indiana
350 am edt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz043-311415-
new buffalo mi to st joseph mi-
350 am edt mon aug 31 2026

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

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 73 degrees and at michigan
city is 63 degrees.

$$

fzus53 klot 310134
nshlot
expires:202608310930;;638361

nearshore marine forecast
national weather service chicago/romeoville il
834 pm cdt sun aug 30 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>742-310930-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
834 pm cdt sun aug 30 2026

.rest of tonight...south winds 10 to 15 kt becoming southwest. 
occasional showers and slight chance of thunderstorms early, then 
slight chance of showers and thunderstorms after midnight. waves 1
to 2 ft. 
.monday...southwest winds 10 to 20 kt. chance of showers and
slight chance of thunderstorms in the morning, then slight chance
of showers and thunderstorms in the afternoon. waves 1 to 3 ft.
.monday night...southwest winds 10 to 15 kt. slight chance of
showers and thunderstorms overnight. waves 1 to 2 ft. 
.tuesday...southwest winds around 10 kt. slight chance of showers
and thunderstorms in the morning. waves around 1 ft.  

$$

fzus53 klot 310134
nshlot
expires:202608310930;;638362

nearshore marine forecast
national weather service chicago/romeoville il
834 pm cdt sun aug 30 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>745-310930-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
834 pm cdt sun aug 30 2026

.rest of tonight...south winds 10 to 15 kt becoming southwest. 
occasional showers and slight chance of thunderstorms late in the 
evening. waves 1 to 2 ft.
.monday...southwest winds 10 to 20 kt. slight chance of showers
and thunderstorms. waves 1 to 3 ft. 
.monday night...south winds 10 to 15 kt becoming southwest.
slight chance of showers and thunderstorms overnight. waves 1 to
2 ft. 
.tuesday...southwest winds around 10 kt. partly cloudy. waves
1 to 2 ft.  

$$

fzus53 kmkx 310610
nshmkx
expires:202608310900;;647663

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz646-310900-
wind point wi to winthrop harbor il-
110 am cdt mon aug 31 2026

.rest of tonight...south wind 10 to 15 knots. slight chance of
showers through the night. slight chance of thunderstorms early
in the morning. waves 1 to 2 feet. 
.monday...south wind 10 to 15 knots veering southwest with gusts
to around 20 knots late in the morning, then rising to 15 to
20 knots early in the afternoon easing to 10 to 15 knots with
gusts to around 20 knots late in the afternoon. chance of
thunderstorms in the morning. chance of showers through the day.
slight chance of thunderstorms in the afternoon. waves 1 to
2 feet. 
.monday night...southwest wind 10 to 15 knots easing to 5 to
10 knots late in the evening, then becoming southwest 5 to
10 knots after midnight. partly cloudy. waves around 1 foot. 
.tuesday...southwest wind 5 to 10 knots backing south late in the
afternoon. slight chance of showers and thunderstorms. waves
around 1 foot. 

$$

fzus53 kmkx 310610
nshmkx
expires:202608310900;;647662

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz645-310900-
north point light to wind point wi-
110 am cdt mon aug 31 2026

.rest of tonight...south wind 10 to 15 knots. slight chance of
showers and thunderstorms after midnight, then chance of showers
and thunderstorms early in the morning. waves 1 to 2 feet. 
.monday...south wind 10 to 15 knots becoming southwest 15 to
20 knots in the late morning and early afternoon, then easing to
10 to 15 knots with gusts to around 20 knots late in the
afternoon. chance of thunderstorms in the morning. chance of
showers through the day. slight chance of thunderstorms in the
afternoon. waves 1 to 2 feet. 
.monday night...southwest wind 10 to 15 knots easing to 5 to
10 knots in the late evening and overnight. slight chance of
showers through around midnight. waves around 1 foot. 
.tuesday...southwest wind 5 to 10 knots veering west late in the
morning, then backing southwest early in the afternoon rising to
10 to 15 knots late in the afternoon. slight chance of showers
and thunderstorms in the morning. waves around 1 foot. 

$$

fzus53 kmkx 310610
nshmkx
expires:202608310900;;647661

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz644-310900-
port washington to north point light wi-
110 am cdt mon aug 31 2026

.rest of tonight...south wind 5 to 10 knots rising to 10 to
15 knots early in the morning. slight chance of showers and
thunderstorms after midnight, then chance of showers and
thunderstorms early in the morning. waves 1 to 2 feet. 
.monday...south wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then veering southwest early in the afternoon
easing to 10 to 15 knots late in the afternoon. chance of showers
and thunderstorms in the morning. slight chance of showers in the
afternoon. waves 1 to 2 feet building to 2 to 4 feet in the late
morning and early afternoon, then subsiding to 1 to 2 feet late
in the afternoon. 
.monday night...southwest wind 10 to 15 knots easing to 5 to
10 knots late in the evening, then veering west after midnight.
partly cloudy. waves around 1 foot. 
.tuesday...west wind 5 to 10 knots backing southwest in the
afternoon. slight chance of showers and thunderstorms in the
morning. waves around 1 foot. 

$$

fzus53 kmkx 310610
nshmkx
expires:202608310900;;647660

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt mon aug 31 2026

for waters within five nautical miles of shore on lake michigan


lmz643-310900-
sheboygan to port washington wi-
110 am cdt mon aug 31 2026

.rest of tonight...south wind 10 to 15 knots. slight chance of
showers and thunderstorms after midnight, then chance of showers
and thunderstorms early in the morning. waves 1 to 3 feet. 
.monday...south wind 10 to 20 knots becoming 15 to 20 knots late
in the morning, then becoming south 15 to 20 knots early in the
afternoon veering southwest late in the afternoon. gusts up to
25 knots. chance of showers and thunderstorms in the morning.
waves 3 to 4 feet. 
.monday night...southwest wind 10 to 15 knots becoming west 5 to
10 knots after midnight. partly cloudy. waves 2 to 4 feet
subsiding to 1 to 2 feet in the late evening and overnight. 
.tuesday...northwest wind 5 to 10 knots backing southwest late in
the morning, then backing south early in the afternoon becoming
southwest 10 to 15 knots late in the afternoon. slight chance of
showers and thunderstorms in the morning. waves around 1 foot. 

$$