fzus53 kapx 180721
nshapx
expires:202609181530;;643704

nearshore marine forecast
national weather service gaylord mi
321 am edt fri sep 18 2026

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

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


lmz346-181530-
manistee to point betsie mi-
321 am edt fri sep 18 2026

.today...northeast wind 5 to 10 knots. patchy fog early in the
morning. waves 2 feet or less. 
.tonight...east wind 5 to 10 knots. chance of showers. waves
2 feet or less. 
.saturday...east wind 5 to 10 knots. chance of showers. waves
2 feet or less. 
.saturday night...northeast wind 5 to 10 knots. mostly cloudy.
waves 2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 180736
nshgrb
expires:202609181000;;644080

nearshore marine forecast
national weather service green bay wi
236 am cdt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-181000-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
236 am cdt fri sep 18 2026

.rest of the night...ne wind 10 to 15 kts. waves 1 to 3 ft.
partly cloudy. 
.friday...ne wind 10 to 15 kts. waves 2 to 4 ft. a chance of
showers in the afternoon. 
.friday night...e wind 10 to 15 kts veering se 10 to 20 kts after
midnight. waves 1 to 3 ft building to 3 to 5 ft after midnight. a
chance of showers. a small craft advisory may be needed. 
.saturday...se wind 10 to 20 kts backing e 10 to 15 kts early in
the afternoon. waves 4 to 7 ft. a chance of showers. a small
craft advisory may be needed.  

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644074

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180845-
whitehall to pentwater mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves around 1 foot. 
.friday...northeast winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday night...northeast winds 10 to 15 knots veering east 15 to
20 knots in the late evening and overnight. rain showers likely.
waves 1 to 2 feet. 
.saturday...east winds 15 to 25 knots. rain showers and a slight
chance of thunderstorms. waves 1 to 3 feet. 
.saturday night...northeast winds 10 to 20 knots. cloudy with a
chance of rain showers. waves 1 to 2 feet. 
.sunday...northeast winds 10 to 20 knots. mostly cloudy with a
chance of rain showers. waves 2 to 4 feet. 
.monday...northeast winds 15 to 25 knots. mostly cloudy. waves 1 to
3 feet. 
.tuesday...northeast winds 15 to 20 knots. partly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644075

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180845-
grand haven to whitehall mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. mostly clear.
waves 1 foot or less. 
.friday...northeast winds 10 to 15 knots. mostly 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. rain showers likely.
waves 1 to 2 feet. 
.saturday...east winds 20 to 25 knots. rain showers and a slight
chance of thunderstorms. waves 1 to 3 feet. 
.saturday night...east winds 15 to 25 knots. cloudy with a chance of
rain showers and a slight chance of thunderstorms. waves 1 to
2 feet. 
.sunday...northeast winds 15 to 20 knots. mostly cloudy with a
chance of rain showers. waves 1 to 2 feet. 
.monday...east winds to 30 knots. mostly cloudy. waves 2 to 4 feet. 
.tuesday...northeast winds 20 to 25 knots. partly sunny. waves 1 to
3 feet. 

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644076

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180845-
holland to grand haven mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves 1 foot or less. 
.friday...northeast winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday night...east winds 15 to 25 knots. rain showers likely.
waves 1 to 2 feet. 
.saturday...east winds 15 to 25 knots. rain showers likely and a
slight chance of thunderstorms. waves 1 to 3 feet. 
.saturday night...east winds 15 to 20 knots. rain showers likely and
a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...northeast winds 15 to 20 knots. mostly cloudy with rain
showers likely. waves 1 to 2 feet. 
.monday...east winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 2 to 4 feet. 
.tuesday...northeast winds 20 to 25 knots. mostly cloudy. waves 1 to
3 feet. 

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644077

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180845-
south haven to holland mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves 1 foot or less. 
.friday...northeast winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday night...east winds 10 to 20 knots. mostly cloudy with a
chance of rain showers. waves around 1 foot. 
.saturday...east winds 15 to 20 knots. rain showers and a slight
chance of thunderstorms. waves around 1 foot. 
.saturday night...east winds 15 to 20 knots. rain showers and a
chance of thunderstorms. waves around 1 foot. 
.sunday...northeast winds 15 to 20 knots. rain showers likely. waves
1 to 2 feet. 
.monday...east winds 20 to 25 knots. mostly cloudy with a chance of
rain showers. waves 2 to 4 feet. 
.tuesday...northeast winds 15 to 25 knots. partly sunny with a
chance of rain showers. waves 1 to 3 feet. 

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644078

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180845-
st joseph to south haven mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves around 1 foot. 
.friday...northeast winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday night...east winds 10 to 20 knots becoming after midnight.
rain showers likely. waves around 1 foot. 
.saturday...southeast winds 10 to 20 knots. rain showers and a
slight chance of thunderstorms. waves around 1 foot. 
.saturday night...east winds 10 to 15 knots. rain showers and a
chance of thunderstorms. waves around 1 foot. 
.sunday...northeast winds 10 to 20 knots. rain showers likely. waves
2 to 4 feet. 
.monday...northeast winds 20 to 25 knots. mostly cloudy with a
chance of rain showers. waves 2 to 4 feet. 
.tuesday...northeast winds 15 to 20 knots. partly sunny with a
chance of rain showers. waves 2 to 4 feet. 

$$

fzus53 kgrr 180736
nshgrr
expires:202609180845;;644073

nearshore marine forecast
national weather service grand rapids mi
336 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180845-
pentwater to manistee mi-
336 am edt fri sep 18 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves around 1 foot. 
.friday...northeast winds 10 to 15 knots. partly sunny. waves 1 to
2 feet. 
.friday night...northeast winds 10 to 20 knots veering east in the
late evening and overnight. cloudy with a chance of rain showers.
waves 1 to 2 feet. 
.saturday...east winds 10 to 20 knots. mostly cloudy with a chance
of rain showers. waves 1 to 2 feet. 
.saturday night...northeast winds 10 to 15 knots. mostly cloudy with
a chance of rain showers. waves around 1 foot. 
.sunday...northeast winds 15 to 25 knots. mostly cloudy with a
chance of rain showers. waves 1 to 3 feet building to 2 to 4 feet
early in the afternoon. 
.monday...northeast winds 15 to 20 knots. mostly cloudy. waves 1 to
3 feet. 
.tuesday...northeast winds 10 to 20 knots. partly sunny. waves 1 to
2 feet. 

$$

fzus53 kiwx 180737
nshiwx
expires:202609181415;;644085

nearshore marine forecast
national weather service northern indiana
337 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-181415-
new buffalo mi to st joseph mi-
337 am edt fri sep 18 2026

.today...northeast winds 5 to 10 knots. partly sunny. waves
2 feet or less. 
.tonight...northeast winds 5 to 15 knots becoming east. a chance
of showers with a slight chance of thunderstorms overnight. waves
2 feet or less. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
with a chance of thunderstorms. waves 2 feet or less. 
.saturday night...southeast winds 5 to 10 knots becoming
northeast. showers with a chance of thunderstorms. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 54 degrees and at michigan
city is 52 degrees.

$$

fzus53 kiwx 180737
nshiwx
expires:202609181415;;644086

nearshore marine forecast
national weather service northern indiana
337 am edt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-181415-
michigan city in to new buffalo mi-
337 am edt fri sep 18 2026

.today...northeast winds 5 to 10 knots. partly sunny. waves 1 to
2 feet. 
.tonight...northeast winds 5 to 15 knots becoming east. a chance
of showers with a slight chance of thunderstorms overnight. waves
1 to 2 feet. 
.saturday...east winds 5 to 15 knots becoming southeast. showers
with a chance of thunderstorms. waves 2 feet or less. 
.saturday night...southeast winds 5 to 10 knots becoming
northeast. showers with a chance of thunderstorms. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 54 degrees and at michigan
city is 52 degrees.

$$

fzus53 klot 180237
nshlot
expires:202609180915;;632645

nearshore marine forecast
national weather service chicago/romeoville il
937 pm cdt thu sep 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.


lmz740-180915-
winthrop harbor to wilmette harbor il-
937 pm cdt thu sep 17 2026

...small craft advisory in effect from 7 am cdt friday through
friday afternoon...

.rest of tonight...northeast winds 10 to 15 kt. patchy fog late
in the evening. waves 2 to 4 ft building to 3 to 5 ft. 
.friday...east winds 15 to 20 kt. mostly cloudy. waves 3 to 6 ft 
occasionally to 8 ft.
.friday night...east winds 15 to 20 kt becoming southeast
overnight. slight chance of showers in the evening, then showers
and a chance of thunderstorms overnight. waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.saturday...southeast winds 10 to 20 kt. showers and a chance of
thunderstorms. waves 4 to 7 ft occasionally to 9 ft.  

$$

fzus53 klot 180237
nshlot
expires:202609180915;;632647

nearshore marine forecast
national weather service chicago/romeoville il
937 pm cdt thu sep 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>745-180915-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
937 pm cdt thu sep 17 2026

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

$$

fzus53 klot 180237
nshlot
expires:202609180915;;632646

nearshore marine forecast
national weather service chicago/romeoville il
937 pm cdt thu sep 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.


lmz741-742-180915-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
937 pm cdt thu sep 17 2026

.rest of tonight...northeast winds 10 to 15 kt. patchy fog late
in the evening. waves 2 to 4 ft. 
.friday...east winds around 15 kt. mostly cloudy. waves 3 to
5 ft. 
.friday night...east winds 15 to 20 kt becoming southeast
overnight. showers likely and a chance of thunderstorms
overnight. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. a small craft advisory will likely be needed. 
.saturday...southeast winds 15 to 20 kt diminishing to 10 to
15 kt. showers and a chance of thunderstorms. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. a small craft 
advisory will likely be needed. 

$$

fzus53 kmkx 180610
nshmkx
expires:202609180900;;639015

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-180900-
sheboygan to port washington wi-
110 am cdt fri sep 18 2026

.rest of tonight...northeast wind 10 to 15 knots becoming 10 to
20 knots early in the morning. partly cloudy. waves 1 to 2 feet
building to 2 to 4 feet early in the morning. 
.friday...northeast wind 15 to 20 knots easing to 10 to 15 knots
early in the afternoon, then rising to 15 to 20 knots late in the
afternoon. slight chance of showers in the afternoon. waves 3 to
4 feet. 
.friday night...northeast wind 15 to 20 knots veering east 15 to
25 knots in the late evening and early morning, then veering
southeast early in the morning. rain showers likely through
around midnight, then showers and slight chance of thunderstorms
after midnight. waves 3 to 5 feet building to 5 to 7 feet in the
late evening and overnight. a small craft advisory may be needed.
.saturday...southeast wind up to 30 knots becoming east 15 to
25 knots in the late morning and afternoon. rain showers in the
morning. slight chance of thunderstorms through the day. chance
of showers in the afternoon. waves 7 to 9 feet. 

$$

fzus53 kmkx 180610
nshmkx
expires:202609180900;;639016

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-180900-
port washington to north point light wi-
110 am cdt fri sep 18 2026

.rest of tonight...northeast wind 10 to 15 knots becoming 10 to
20 knots early in the morning. partly cloudy. waves 1 to 3 feet
building to 2 to 4 feet early in the morning. 
.friday...northeast wind 15 to 20 knots veering east late in the
morning, then becoming northeast 10 to 15 knots early in the
afternoon rising to 15 to 20 knots late in the afternoon. partly
sunny. waves 3 to 4 feet. 
.friday night...northeast wind 15 to 20 knots veering east 15 to
25 knots in the late evening and overnight. chance of showers
through around midnight, then showers and slight chance of
thunderstorms after midnight. waves 3 to 5 feet building to 6 to
8 feet. a small craft advisory may be needed. 
.saturday...southeast wind 15 to 25 knots backing east late in
the afternoon. gusts up to 30 knots. showers in the morning.
chance of thunderstorms through the day. showers likely in the
afternoon. waves 7 to 9 feet. 

$$

fzus53 kmkx 180610
nshmkx
expires:202609180900;;639018

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-180900-
wind point wi to winthrop harbor il-
110 am cdt fri sep 18 2026

...small craft advisory in effect from 7 am cdt this morning
through this afternoon...

.rest of tonight...northeast wind 10 to 15 knots rising to 15 to
20 knots early in the morning. partly cloudy. waves 3 to 4 feet. 
.friday...northeast wind 15 to 20 knots veering east in the late
morning and early afternoon, then backing northeast late in the
afternoon. partly sunny. waves 3 to 4 feet. 
.friday night...northeast wind 15 to 20 knots veering east 15 to
25 knots in the late evening and overnight. chance of showers
through around midnight, then showers and a chance of
thunderstorms after midnight. waves 3 to 4 feet building to 6 to
8 feet. 
.saturday...southeast wind 15 to 25 knots backing east 15 to
20 knots late in the afternoon. showers in the morning. chance of
thunderstorms through the day. showers likely in the afternoon.
waves 6 to 8 feet subsiding to 5 to 7 feet early in the
afternoon, then subsiding to 4 to 6 feet late in the afternoon. 

$$

fzus53 kmkx 180610
nshmkx
expires:202609180900;;639017

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri sep 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-180900-
north point light to wind point wi-
110 am cdt fri sep 18 2026

...small craft advisory in effect from 7 am cdt this morning
through this afternoon...

.rest of tonight...northeast wind 10 to 15 knots rising to 15 to
20 knots early in the morning. partly cloudy. waves 3 to 4 feet. 
.friday...northeast wind 15 to 20 knots veering east late in the
morning, then becoming northeast 10 to 15 knots early in the
afternoon rising to 15 to 20 knots late in the afternoon. partly
sunny. waves 3 to 4 feet. 
.friday night...northeast wind 15 to 20 knots veering east 15 to
25 knots in the late evening and overnight. chance of showers
through around midnight, then showers and a chance of
thunderstorms after midnight. waves 3 to 4 feet building to 6 to
8 feet. 
.saturday...southeast wind 15 to 25 knots backing east early in
the afternoon, then becoming 15 to 20 knots late in the
afternoon. showers in the morning. chance of thunderstorms
through the day. showers likely in the afternoon. waves 6 to
8 feet subsiding to 5 to 7 feet late in the afternoon. 

$$