fzus53 kapx 210550
nshapx
expires:202604211845;;727116

nearshore marine forecast
national weather service gaylord mi
150 am edt tue apr 21 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.


lmz346-211845-
manistee to point betsie mi-
150 am edt tue apr 21 2026

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

.today...south wind 10 to 20 knots, gusts near 25 knots early, 
becoming southwest 5 to 10 knots in the afternoon, then becoming 
variable 10 knots or less early in the evening. partly cloudy 
early in the morning then clearing. waves 3 to 5 feet subsiding to
2 to 3 feet in the afternoon. 
.tonight...northeast wind 5 to 10 knots. mostly clear. waves
2 feet or less. 
.wednesday...light winds. sunny. waves 2 feet or less. 
.wednesday night...southeast wind 5 to 10 knots. mostly clear.
waves 2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 210624
nshgrb
expires:202604211000;;728784

nearshore marine forecast
national weather service green bay wi
124 am cdt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-211000-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
124 am cdt tue apr 21 2026

...small craft advisory in effect until 1 pm cdt this afternoon...

.rest of the night...s wind 10 to 20 kts. waves 4 to 7 ft. partly
cloudy. 
.tuesday...s wind 10 to 15 kts backing se 5 to 10 kts early in
the afternoon. waves 3 to 5 ft. mostly sunny. 
.tuesday night...ne wind 10 to 15 kts. waves 1 to 3 ft. clear.
.wednesday...ne wind 5 to 10 kts veering e early in the
afternoon. waves 2 ft or less. sunny. 

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728630

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz848-210800-
whitehall to pentwater mi-
223 am edt tue apr 21 2026

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

.rest of tonight...south winds 20 to 25 knots. mostly cloudy. waves
3 to 5 feet. 
.tuesday...south winds 15 to 25 knots. mostly sunny. waves 4 to
6 feet. 
.tuesday night...northwest winds 5 to 15 knots veering northeast in
the late evening and overnight. mostly clear. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...northeast winds 5 to 10 knots backing northwest early
in the afternoon. sunny. waves 1 foot or less. 
.wednesday night...northeast winds 5 to 15 knots veering southeast
in the late evening and overnight. mostly clear. waves around
1 foot. 
.thursday...south winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.friday...south winds 15 to 25 knots. mostly cloudy with rain
showers likely. waves 5 to 7 feet. 
.saturday...north winds 15 to 20 knots. partly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728631

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz847-210800-
grand haven to whitehall mi-
223 am edt tue apr 21 2026

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

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

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728632

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz846-210800-
holland to grand haven mi-
223 am edt tue apr 21 2026

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

.rest of tonight...south winds 20 to 25 knots. partly cloudy. waves
3 to 5 feet. 
.tuesday...south winds 15 to 25 knots. mostly sunny with a chance of
rain showers. waves 4 to 6 feet. 
.tuesday night...west winds 10 to 15 knots veering north 5 to
10 knots in the late evening and early morning, then veering
northeast after midnight. partly cloudy. waves 2 to 3 feet subsiding
to 1 to 2 feet in the late evening and overnight. 
.wednesday...northeast winds 5 to 10 knots backing west early in the
afternoon. sunny. waves 1 foot or less. 
.wednesday night...north winds 5 to 15 knots veering southeast in
the late evening and overnight. mostly clear. waves 1 foot or less. 
.thursday...south winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.friday...south winds 15 to 20 knots. mostly cloudy with rain
showers likely. waves 3 to 5 feet. 
.saturday...north winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728634

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz844-210800-
st joseph to south haven mi-
223 am edt tue apr 21 2026

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

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

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728633

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz845-210800-
south haven to holland mi-
223 am edt tue apr 21 2026

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

.rest of tonight...south winds 20 to 25 knots. partly cloudy. waves
2 to 4 feet. 
.tuesday...southwest winds 15 to 25 knots. mostly sunny with a
chance of rain showers. waves 3 to 5 feet. 
.tuesday night...southwest winds 10 to 15 knots veering northeast
5 to 10 knots after midnight. partly cloudy with a chance of rain
showers. waves 2 to 3 feet. 
.wednesday...northeast winds 5 to 10 knots backing northwest early
in the afternoon. sunny. waves 1 foot or less. 
.wednesday night...north winds 5 to 15 knots veering southeast in
the late evening and overnight. mostly clear. waves 1 foot or less. 
.thursday...south winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday...south winds 15 to 20 knots. mostly cloudy with rain
showers likely. waves 2 to 4 feet.
.saturday...north winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 210623
nshgrr
expires:202604210800;;728629

nearshore marine forecast
national weather service grand rapids mi
223 am edt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz849-210800-
pentwater to manistee mi-
223 am edt tue apr 21 2026

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

.rest of tonight...south winds 15 to 25 knots. mostly cloudy. waves
3 to 5 feet. 
.tuesday...south winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.tuesday night...northwest winds 5 to 10 knots veering northeast in
the late evening and overnight. mostly clear. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...northeast winds 5 to 10 knots backing north early in
the afternoon. sunny. waves around 1 foot. 
.wednesday night...northeast winds 5 to 15 knots veering southeast
in the late evening and overnight. mostly clear. waves around
1 foot. 
.thursday...south winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet.
.friday...south winds 15 to 25 knots. mostly cloudy with rain
showers likely. waves 4 to 6 feet. 
.saturday...north winds 10 to 20 knots. mostly sunny. waves 3 to
5 feet. 

$$

fzus53 kiwx 210145
nshiwx
expires:202604210815;;719900

nearshore marine forecast
national weather service northern indiana
945 pm edt mon apr 20 2026

for waters within five nautical miles of shore on lake michigan


lmz043-210815-
new buffalo mi to st joseph mi-
945 pm edt mon apr 20 2026

.overnight...southeast winds 5 to 15 knots becoming south.
mostly clear. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a few gusts up to 25 knots. mostly sunny. waves 1 to 3 
feet.
.tuesday night...west winds 10 knots or less. a chance of showers
in the evening. waves 2 feet or less. 
.wednesday...northwest winds less than 10 knots. mostly sunny.
waves 1 foot or less. 

the water temperature at st. joseph is 50 degrees and at michigan
city is 48 degrees.

$$

fzus53 kiwx 210145
nshiwx
expires:202604210815;;719899

nearshore marine forecast
national weather service northern indiana
945 pm edt mon apr 20 2026

for waters within five nautical miles of shore on lake michigan


lmz046-210815-
michigan city in to new buffalo mi-
945 pm edt mon apr 20 2026

.overnight...south winds 5 to 15 knots. mostly clear. waves
1 to 2 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a few gusts up to 25 knots. mostly sunny. waves 1 to 2 
feet.
.tuesday night...west winds 10 knots or less. a chance of showers
and thunderstorms in the evening. waves 2 feet or less. 
.wednesday...northwest winds less than 10 knots. mostly sunny.
waves 1 foot or less. 

the water temperature at st. joseph is 50 degrees and at michigan
city is 48 degrees.

$$

fzus53 klot 210237
nshlot
expires:202604210915;;721342

nearshore marine forecast
national weather service chicago/romeoville il
937 pm cdt mon apr 20 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>745-210915-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
937 pm cdt mon apr 20 2026

.rest of tonight...south winds 10 to 15 kt increasing to 15 to 
25 kt. partly cloudy. waves 1 to 3 ft.
.tuesday...south winds 15 to 25 kt becoming southwest. slight
chance of showers and thunderstorms in the afternoon. waves 1 
to 3 ft. 
.tuesday night...southwest winds 10 to 15 kt becoming northwest
overnight. chance of showers and thunderstorms in the evening.
waves 1 to 2 ft. 
.wednesday...north winds around 10 kt. partly cloudy. waves
around 1 ft.  

$$

fzus53 klot 210237
nshlot
expires:202604210915;;721341

nearshore marine forecast
national weather service chicago/romeoville il
937 pm cdt mon apr 20 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>742-210915-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
937 pm cdt mon apr 20 2026

.rest of tonight...south winds 10 to 20 kt increasing to 15 to 
25 kt. partly cloudy. waves 2 to 4 ft.
.tuesday...southwest winds 15 to 25 kt. chance of showers and 
thunderstorms in the afternoon. waves 2 to 4 ft subsiding to 1 
to 3 ft.
.tuesday night...west winds 10 to 15 kt becoming north overnight.
slight chance of showers and thunderstorms in the evening. waves
1 to 2 ft. 
.wednesday...north winds around 10 kt becoming northeast in the
afternoon. partly cloudy. waves 1 to 2 ft.  

$$

fzus53 kmkx 210610
nshmkx
expires:202604210900;;728010

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz646-210900-
wind point wi to winthrop harbor il-
110 am cdt tue apr 21 2026

.rest of tonight...south wind 15 to 20 knots. mostly cloudy.
waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 20 knots easing to 10 to 15 knots
with gusts to around 20 knots late in the morning, then becoming
southwest 10 to 15 knots with gusts to around 20 knots early in
the afternoon becoming southwest 10 to 15 knots late in the
afternoon. isolated showers in the afternoon. waves 2 to 4 feet
subsiding to 1 to 2 feet in the afternoon. 
.tuesday night...southwest wind 5 to 10 knots veering north early
in the morning. patchy fog after midnight. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. patchy fog in the morning. waves around 1 foot. 

$$

fzus53 kmkx 210610
nshmkx
expires:202604210900;;728009

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz645-210900-
north point light to wind point wi-
110 am cdt tue apr 21 2026

.rest of tonight...south wind 15 to 20 knots. mostly cloudy.
waves 2 to 4 feet. 
.tuesday...southwest wind 15 to 20 knots easing to 10 to 15 knots
late in the morning, then becoming southwest 10 to 15 knots in
the afternoon. isolated showers in the afternoon. waves 2 to
4 feet subsiding to 1 to 2 feet in the afternoon. 
.tuesday night...west wind 5 to 10 knots veering north early in
the morning. partly cloudy. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves around 1 foot. 

$$

fzus53 kmkx 210610
nshmkx
expires:202604210900;;728008

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz644-210900-
port washington to north point light wi-
110 am cdt tue apr 21 2026

.rest of tonight...south wind 10 to 15 knots rising to 15 to
20 knots early in the morning. partly cloudy. waves 2 to 4 feet. 
.tuesday...south wind 10 to 15 knots with gusts to around
20 knots veering southwest in the late morning and early
afternoon, then backing south late in the afternoon. scattered
sprinkles in the afternoon. waves 2 to 4 feet subsiding to 1 to
2 feet in the afternoon. 
.tuesday night...northeast wind 5 to 10 knots backing north late
in the evening, then becoming north 5 to 10 knots after midnight.
mostly clear. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves around 1 foot. 

$$

fzus53 kmkx 210610
nshmkx
expires:202604210900;;728007

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt tue apr 21 2026

for waters within five nautical miles of shore on lake michigan


lmz643-210900-
sheboygan to port washington wi-
110 am cdt tue apr 21 2026

...small craft advisory in effect until 7 am cdt this morning...

.rest of tonight...south wind 15 to 20 knots. partly cloudy.
waves 3 to 4 feet. 
.tuesday...south wind 10 to 15 knots with gusts to around
20 knots veering southwest late in the morning, then backing
south early in the afternoon becoming southeast 5 to 10 knots
late in the afternoon. mostly sunny. waves 3 to 4 feet. 
.tuesday night...northeast wind 5 to 10 knots backing north late
in the evening, then rising to 10 to 15 knots after midnight
easing to 5 to 10 knots early in the morning. mostly clear. waves
1 to 2 feet. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves 1 to 2 feet. 

$$