fzus53 kapx 181836
nshapx
expires:202509190245;;204637

nearshore marine forecast
national weather service gaylord mi
236 pm edt thu sep 18 2025

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.


lmz346-190245-
manistee to point betsie mi-
236 pm edt thu sep 18 2025

.tonight...northeast wind 10 to 15 knots early in the evening
becoming variable 10 knots or less. partly cloudy early in the
evening then becoming mostly cloudy. waves 2 feet or less. 
.friday...northeast wind 10 to 15 knots. partly sunny. waves
2 feet or less. 
.friday night...east wind 10 to 15 knots. chance of showers.
waves 2 feet or less. 
.saturday...southeast wind 5 to 10 knots. chance of showers.
waves 2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 181958
nshgrb
expires:202509190200;;207901

nearshore marine forecast
national weather service green bay wi
258 pm cdt thu sep 18 2025

for waters within five nautical miles of the shore on lake michigan


lmz542-543-190200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
258 pm cdt thu sep 18 2025

.this afternoon...ne wind 5 to 10 kts. a chance of light showers
and a slight chance of thunderstorms. waves 2 ft or less. 
.tonight...ne wind 10 to 20 kts. partly cloudy in the evening
then becoming mostly cloudy. waves 1 to 3 ft. 
.friday...e wind 5 to 10 kts backing ne 10 to 20 kts in the
afternoon. patchy fog in the morning. waves 1 to 3 ft. 
.friday night...e wind 10 to 20 kts veering se after midnight. a
chance of light showers and thunderstorms. waves 3 to 5 ft. a
small craft advisory may be needed. 

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208582

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz844-190800-
st joseph to south haven mi-
405 pm edt thu sep 18 2025

.through early evening...northwest winds around 10 knots. sunny.
waves less than 1 foot. 
.tonight...northeast winds 5 to 10 knots veering east after
midnight. mostly clear. waves less than 1 foot. 
.friday...east winds 5 to 10 knots backing northeast early in the
afternoon. sunny. waves less than 1 foot. 
.friday night...northeast winds 10 to 15 knots veering east 15 to
20 knots in the late evening and overnight. partly cloudy with a
slight chance of rain showers. waves around 1 foot. 
.saturday...southeast winds 10 to 15 knots. mostly cloudy with a
chance of rain showers. waves around 1 foot. 
.saturday night...east winds around 10 knots veering southeast in
the late evening and overnight. mostly cloudy with a chance of rain
showers. waves 1 foot or less. 
.sunday...south winds 10 to 15 knots veering southwest early in the
afternoon. mostly cloudy with a chance of showers and thunderstorms.
waves 1 foot or less. 
.monday...southwest winds 10 to 15 knots. mostly cloudy with rain
showers likely and a chance of thunderstorms. waves around 1 foot. 
.tuesday...south winds around 10 knots veering west early in the
afternoon. mostly cloudy with a chance of rain showers. waves around
1 foot. 

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208578

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz848-190800-
whitehall to pentwater mi-
405 pm edt thu sep 18 2025

.through early evening...northwest winds 5 to 15 knots. mostly
sunny. waves less than 1 foot. 
.tonight...north winds around 10 knots veering east after midnight.
partly cloudy. waves around 1 foot. 
.friday...east winds 10 to 15 knots. mostly sunny. waves 1 foot or
less. 
.friday night...east winds 15 to 25 knots. partly cloudy with a
chance of showers and thunderstorms. waves 1 to 3 feet. 
.saturday...southeast winds 15 to 20 knots veering south early in
the afternoon. mostly cloudy with a chance of rain showers and a
slight chance of thunderstorms. waves 1 to 2 feet. 
.saturday night...southeast winds 10 to 15 knots. rain showers
likely and a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...south winds 10 to 15 knots becoming around 15 knots early
in the afternoon. mostly cloudy with a chance of showers and
thunderstorms. waves 1 to 3 feet. 
.monday...southwest winds 10 to 15 knots. partly sunny with a chance
of rain showers. waves 2 to 3 feet. 
.tuesday...south winds 10 to 15 knots veering northwest early in the
afternoon. partly sunny. waves 1 to 3 feet. 

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208579

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz847-190800-
grand haven to whitehall mi-
405 pm edt thu sep 18 2025

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

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208580

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz846-190800-
holland to grand haven mi-
405 pm edt thu sep 18 2025

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

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208581

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz845-190800-
south haven to holland mi-
405 pm edt thu sep 18 2025

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

$$

fzus53 kgrr 182005
nshgrr
expires:202509190800;;208577

nearshore marine forecast
national weather service grand rapids mi
405 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz849-190800-
pentwater to manistee mi-
405 pm edt thu sep 18 2025

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

$$

fzus53 kiwx 181936
nshiwx
expires:202509190215;;207281

nearshore marine forecast
national weather service northern indiana
336 pm edt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz043-046-190215-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
336 pm edt thu sep 18 2025

.tonight...northeast winds 10 knots or less becoming east. mostly
clear. waves 1 foot or less. 
.friday...southeast winds 10 knots or less becoming northeast.
sunny. waves 1 foot or less. 
.friday night...northeast winds 5 to 15 knots becoming southeast.
mostly cloudy. waves 2 feet or less. 
.saturday...southeast winds 5 to 15 knots becoming east. a chance
of showers in the afternoon. waves 1 foot or less. 

the water temperature at st. joseph is 55 degrees and at michigan
city is 57 degrees.

$$

fzus53 klot 181944
nshlot
expires:202509190315;;207483

nearshore marine forecast
national weather service chicago/romeoville il
244 pm cdt thu sep 18 2025

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.


lmz740-190315-
winthrop harbor to wilmette harbor il-
244 pm cdt thu sep 18 2025

.tonight...east winds around 10 kt becoming northeast in the
evening. mostly clear in the evening, then becoming partly 
cloudy. waves 1 to 2 ft. 
.friday...east winds 10 to 15 kt. partly cloudy. waves 1 to 3 ft.
.friday night...east winds 10 to 15 kt becoming southeast
overnight. slight chance of showers in the evening, then chance
of showers and slight chance of thunderstorms overnight. waves
2 to 4 ft building to 3 to 5 ft. 
.saturday...southeast winds 10 to 15 kt. chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 2 to 4 ft.  

$$

fzus53 klot 181944
nshlot
expires:202509190315;;207484

nearshore marine forecast
national weather service chicago/romeoville il
244 pm cdt thu sep 18 2025

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.


lmz741-742-190315-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
244 pm cdt thu sep 18 2025

.tonight...east winds around 10 kt. mostly clear. waves 1 to 2 
ft. 
.friday...east winds 5 to 10 kt increasing to 10 to 15 kt in the
afternoon. mostly sunny in the morning, then becoming partly
cloudy. waves 1 to 2 ft. 
.friday night...east winds 10 to 15 kt becoming southeast
overnight. slight chance of showers in the evening, then chance
of showers and slight chance of thunderstorms overnight. waves
1 to 3 ft building to 2 to 4 ft. 
.saturday...southeast winds 10 to 15 kt becoming east in the
afternoon. slight chance of showers in the morning, then chance
of showers and slight chance of thunderstorms in the afternoon.
waves 1 to 3 ft.  

$$

fzus53 klot 181944
nshlot
expires:202509190315;;207485

nearshore marine forecast
national weather service chicago/romeoville il
244 pm cdt thu sep 18 2025

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>745-190315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
244 pm cdt thu sep 18 2025

.tonight...northeast winds 5 to 10 kt becoming east late. mostly
clear. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt becoming northeast 10 to
15 kt in the afternoon. mostly sunny in the morning, then
becoming partly cloudy. waves 1 to 2 ft. 
.friday night...east winds 10 to 15 kt becoming southeast
overnight. slight chance of showers late in the evening, then 
chance of showers overnight. waves 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt becoming east in the
afternoon. slight chance of showers in the morning, then chance
of showers and slight chance of thunderstorms in the afternoon.
waves 1 to 2 ft.  

$$

fzus53 klot 181449
nshlot
expires:202509182115;;195664

nearshore marine forecast
national weather service chicago/romeoville il
949 am cdt thu sep 18 2025

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>742-182115-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
949 am cdt thu sep 18 2025

.rest of today...southeast winds 5 to 10 kt becoming northeast 10
to 15 kt in the afternoon. mostly sunny. waves around 1 ft. 
.tonight...northeast winds 5 to 10 kt. mostly clear. waves 1 to
2 ft. 
.friday...east winds 10 to 15 kt. mostly sunny in the morning,
then becoming partly cloudy. waves 1 to 3 ft. 
.friday night...east winds 10 to 15 kt becoming southeast 15 to 20
kt overnight. slight chance of showers and thunderstorms. waves 2
to 4 ft building to 3 to 5 ft. 

$$

fzus53 kmkx 182005
nshmkx
expires:202509190900;;208586

nearshore marine forecast
national weather service milwaukee/sullivan wi
305 pm cdt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz646-190900-
wind point wi to winthrop harbor il-
305 pm cdt thu sep 18 2025

.through early evening...east wind 5 to 10 knots. sunny. waves
nearly calm. 
.tonight...northeast wind 5 to 10 knots. partly cloudy. waves
around 1 foot. 
.friday...east wind 5 to 10 knots rising to 10 to 15 knots in the
late morning and early afternoon, then becoming east 10 to
15 knots late in the afternoon. partly sunny. waves 1 to 2 feet. 
.friday night...northeast wind 10 to 15 knots becoming east 15 to
20 knots late in the evening, then veering southeast after
midnight becoming southeast 15 to 20 knots early in the morning.
chance of showers and slight chance of thunderstorms through
around midnight, then showers likely after midnight. waves 1 to
3 feet building to 4 to 6 feet. 
.saturday...southeast wind 10 to 15 knots. chance of showers
through the day. chance of thunderstorms in the afternoon. waves
3 to 4 feet. 

$$

fzus53 kmkx 182005
nshmkx
expires:202509190900;;208585

nearshore marine forecast
national weather service milwaukee/sullivan wi
305 pm cdt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz645-190900-
north point light to wind point wi-
305 pm cdt thu sep 18 2025

.through early evening...east wind 5 to 10 knots. sunny. waves
around 1 foot. 
.tonight...northeast wind 5 to 10 knots. partly cloudy. waves
1 to 2 feet. 
.friday...east wind 5 to 10 knots rising to 10 to 15 knots in the
late morning and early afternoon, then becoming east 10 to
15 knots late in the afternoon. partly sunny. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon, then subsiding to
1 to 3 feet late in the afternoon. 
.friday night...northeast wind 10 to 15 knots becoming east 15 to
20 knots late in the evening, then veering southeast after
midnight becoming southeast 15 to 20 knots early in the morning.
chance of showers through around midnight. slight chance of
thunderstorms through the night. showers likely after midnight.
waves 1 to 3 feet building to 4 to 6 feet. 
.saturday...southeast wind 15 to 20 knots easing to 10 to
15 knots in the late morning and afternoon. showers likely in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 4 to 6 feet subsiding to 3 to 4 feet in the
afternoon. 

$$

fzus53 kmkx 182005
nshmkx
expires:202509190900;;208584

nearshore marine forecast
national weather service milwaukee/sullivan wi
305 pm cdt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz644-190900-
port washington to north point light wi-
305 pm cdt thu sep 18 2025

.through early evening...east wind 5 to 10 knots backing
northeast late in the afternoon. sunny. waves around 1 foot. 
.tonight...northeast wind 5 to 10 knots rising to 10 to 15 knots
after midnight, then easing to 5 to 10 knots early in the
morning. partly cloudy through around midnight then becoming
mostly cloudy. waves 1 to 2 feet. 
.friday...east wind 5 to 10 knots rising to 10 to 15 knots late
in the morning, then becoming east 10 to 15 knots in the
afternoon. partly sunny. waves 1 to 3 feet building to 2 to
4 feet early in the afternoon, then subsiding to 1 to 3 feet late
in the afternoon. 
.friday night...northeast wind 10 to 15 knots becoming east 15 to
20 knots late in the evening, then becoming 10 to 20 knots after
midnight veering southeast 15 to 20 knots early in the morning.
chance of showers through around midnight. slight chance of
thunderstorms through the night. showers likely after midnight.
waves 1 to 3 feet building to 5 to 7 feet. 
.saturday...southeast wind 15 to 20 knots easing to 10 to
15 knots in the afternoon. showers likely and slight chance of
thunderstorms in the morning, then chance of showers and
thunderstorms in the afternoon. waves 5 to 7 feet subsiding to
3 to 4 feet. 

$$

fzus53 kmkx 182005
nshmkx
expires:202509190900;;208583

nearshore marine forecast
national weather service milwaukee/sullivan wi
305 pm cdt thu sep 18 2025

for waters within five nautical miles of shore on lake michigan


lmz643-190900-
sheboygan to port washington wi-
305 pm cdt thu sep 18 2025

.through early evening...northeast wind 5 to 10 knots rising to
10 to 15 knots late in the afternoon. mostly sunny. patchy fog.
waves around 1 foot. 
.tonight...northeast wind 10 to 15 knots. partly cloudy through
around midnight then becoming mostly cloudy. waves 1 to 2 feet
building to 2 to 4 feet after midnight. 
.friday...east wind 10 to 15 knots backing northeast late in the
afternoon. partly sunny. waves 1 to 3 feet. 
.friday night...northeast wind 10 to 15 knots becoming east 15 to
20 knots late in the evening, then veering southeast 15 to
25 knots after midnight. chance of showers and thunderstorms
through around midnight, then showers likely and slight chance of
thunderstorms after midnight. waves 3 to 5 feet building to 5 to
7 feet early in the morning. a small craft advisory may be
needed. 
.saturday...southeast wind 10 to 20 knots becoming 15 to 20 knots
late in the morning, then becoming southeast 15 to 20 knots early
in the afternoon easing to 10 to 15 knots late in the afternoon.
showers likely and slight chance of thunderstorms in the morning,
then chance of showers and thunderstorms in the afternoon. waves
5 to 7 feet subsiding to 3 to 4 feet. 

$$