fzus53 kapx 171812
nshapx
expires:202608180215;;890720

nearshore marine forecast
national weather service gaylord mi
212 pm edt mon aug 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.


lmz346-180215-
manistee to point betsie mi-
212 pm edt mon aug 17 2026

.through early evening...southwest wind 5 to 10 knots. sunny.
waves 2 feet or less. 
.tonight...south wind 5 to 10 knots. partly cloudy. waves 2 feet
or less. 
.tuesday...southwest wind 10 to 15 knots. numerous showers and
scattered thunderstorms. waves 2 to 3 feet. 
.tuesday night...north wind 5 to 10 knots. scattered showers and
thunderstorms. waves 2 feet or less. 
.wednesday...northwest wind 5 to 10 knots. sunny. 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 171941
nshgrb
expires:202608172200;;896348

nearshore marine forecast
national weather service green bay wi
241 pm cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-172200-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
241 pm cdt mon aug 17 2026

.this afternoon...s wind 5 to 10 kts. waves 2 ft or less. partly
cloudy. 
.tonight...sw wind 10 to 15 kts. waves 2 ft or less. a slight
chance of showers and thunderstorms after midnight. 
.tuesday...w wind 10 to 15 kts backing sw early in the afternoon.
waves 2 ft or less. a chance of thunderstorms in the afternoon. 
.tuesday night...nw wind 5 to 10 kts veering n in the late
evening and overnight. waves 2 ft or less. a chance of showers in
the evening.  

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896313

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180800-
holland to grand haven mi-
341 pm edt mon aug 17 2026

.through early evening...northwest winds 15 to 20 knots. sunny.
waves 1 to 2 feet. 
.tonight...northwest winds 10 to 15 knots backing west 15 to
20 knots after midnight. clear in the evening then becoming partly
cloudy. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. mostly sunny with a
chance of rain showers. waves 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering northwest
10 to 15 knots after midnight. partly cloudy with a chance of
showers and thunderstorms. waves 2 to 4 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast after
midnight. mostly clear. waves 1 to 2 feet. 
.thursday...east winds 5 to 10 knots backing northeast in the late
morning and early afternoon, then backing west early in the
afternoon. sunny. waves less than 1 foot. 
.friday...southwest winds 10 to 15 knots. mostly sunny. waves 1 to
2 feet. 
.saturday...west winds around 20 knots. partly sunny with a chance
of rain showers. waves 3 to 5 feet. 

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896315

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180800-
st joseph to south haven mi-
341 pm edt mon aug 17 2026

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

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896314

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180800-
south haven to holland mi-
341 pm edt mon aug 17 2026

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

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896312

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180800-
grand haven to whitehall mi-
341 pm edt mon aug 17 2026

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

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896311

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180800-
whitehall to pentwater mi-
341 pm edt mon aug 17 2026

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

$$

fzus53 kgrr 171941
nshgrr
expires:202608180800;;896310

nearshore marine forecast
national weather service grand rapids mi
341 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180800-
pentwater to manistee mi-
341 pm edt mon aug 17 2026

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

$$

fzus53 kiwx 171944
nshiwx
expires:202608180215;;896363

nearshore marine forecast
national weather service northern indiana
344 pm edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-046-180215-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
344 pm edt mon aug 17 2026

.tonight...north winds 10 knots or less becoming west. mostly
clear. waves 2 to 3 feet this afternoon, diminishing to 1 to 2 
feet by this evening.
.tuesday...southwest winds 5 to 10 knots. sunny in the morning,
then becoming partly sunny. waves around 1 foot. 
.tuesday night...southwest winds 5 to 10 knots becoming west.
showers likely with a chance of thunderstorms. waves 1 to 2 feet.
.wednesday...northwest winds 5 to 10 knots becoming north. a
chance of showers in the morning. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 70 degrees and at michigan
city is 62 degrees.

$$

fzus53 klot 171950
nshlot
expires:202608180315;;896456

nearshore marine forecast
national weather service chicago/romeoville il
250 pm cdt mon aug 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>742-180315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
250 pm cdt mon aug 17 2026

.late this afternoon...northeast winds around 10 kt. isolated
showers. waves 2 to 4 ft. 
.tonight...southeast winds around 10 kt becoming west late. 
mostly clear. waves 1 to 3 ft. 
.tuesday...west winds around 10 kt becoming southwest. chance of
showers and thunderstorms in the afternoon. waves 1 to 2 ft.
.tuesday night...southwest winds 10 to 15 kt becoming west
overnight. showers likely and a chance of thunderstorms in the
evening, then chance of showers overnight. waves 1 to 2 ft. 
.wednesday...northwest winds around 10 kt becoming northeast in
the afternoon. partly cloudy. waves 1 to 2 ft.  

$$

fzus53 klot 171950
nshlot
expires:202608180315;;896457

nearshore marine forecast
national weather service chicago/romeoville il
250 pm cdt mon aug 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>745-180315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
250 pm cdt mon aug 17 2026

.late this afternoon...north winds 10 to 15 kt. mostly sunny.
waves 2 to 4 ft. 
.tonight...north winds around 10 kt becoming southwest late.
mostly clear. waves 1 to 3 ft. 
.tuesday...southwest winds around 10 kt increasing to around
15 kt. slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 ft. 
.tuesday night...southwest winds 10 to 15 kt becoming west
overnight. showers likely and a chance of thunderstorms in the
evening, then chance of showers and slight chance of
thunderstorms overnight. waves 1 to 2 ft. 
.wednesday...northwest winds around 10 kt becoming north in the
afternoon. partly cloudy. waves 1 to 2 ft.  

$$

fzus53 kmkx 172010
nshmkx
expires:202608180900;;898007

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-180900-
port washington to north point light wi-
310 pm cdt mon aug 17 2026

.through early evening...east wind 5 to 10 knots veering south
late in the afternoon. partly sunny. waves around 1 foot. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then rising to 10 to 15 knots after midnight veering
west early in the morning. partly cloudy. waves around 1 foot. 
.tuesday...southwest wind 10 to 15 knots with gusts to around
20 knots veering west late in the afternoon. showers likely and a
chance of thunderstorms in the afternoon. waves around 1 foot. 
.tuesday night...southwest wind 10 to 15 knots veering west late
in the evening, then becoming northwest 5 to 10 knots after
midnight. chance of showers and thunderstorms through around
midnight, then slight chance of showers and thunderstorms after
midnight. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kmkx 172010
nshmkx
expires:202608180900;;898009

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-180900-
wind point wi to winthrop harbor il-
310 pm cdt mon aug 17 2026

.through early evening...northeast wind 5 to 10 knots veering
east late in the afternoon. mostly sunny. waves around 1 foot. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then rising to 10 to 15 knots after midnight veering
west early in the morning. mostly clear. waves around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest in the late
morning and afternoon. showers likely and a chance of
thunderstorms in the afternoon. waves around 1 foot. 
.tuesday night...southwest wind 10 to 15 knots veering west late
in the evening, then becoming west 10 to 15 knots after midnight
becoming northwest 5 to 10 knots early in the morning. showers
likely and a chance of thunderstorms through the night. waves
around 1 foot. 
.wednesday...northwest wind 5 to 10 knots veering northeast late
in the afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kmkx 172010
nshmkx
expires:202608180900;;898006

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-180900-
sheboygan to port washington wi-
310 pm cdt mon aug 17 2026

.through early evening...southeast wind 5 to 10 knots veering
south 5 to 15 knots late in the afternoon. partly sunny. waves
around 1 foot. 
.tonight...south wind 10 to 15 knots veering west early in the
morning. partly cloudy. waves around 1 foot. 
.tuesday...southwest wind 10 to 15 knots with gusts to around
20 knots veering west with gusts to around 20 knots late in the
afternoon. chance of showers and thunderstorms in the afternoon.
waves around 1 foot. 
.tuesday night...west wind 10 to 15 knots veering north early in
the morning. chance of showers and thunderstorms through around
midnight, then slight chance of showers after midnight. waves
around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves around 1 foot. 

$$

fzus53 kmkx 172010
nshmkx
expires:202608180900;;898008

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-180900-
north point light to wind point wi-
310 pm cdt mon aug 17 2026

.through early evening...northeast wind 5 to 10 knots veering
southeast late in the afternoon. partly sunny. waves around
1 foot. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then rising to 10 to 15 knots after midnight veering
west early in the morning. mostly clear. waves around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest in the late
morning and afternoon. showers likely and a chance of
thunderstorms in the afternoon. waves around 1 foot. 
.tuesday night...southwest wind 10 to 15 knots veering west late
in the evening, then veering northwest after midnight easing to
5 to 10 knots early in the morning. showers likely through around
midnight. chance of thunderstorms through the night. chance of
showers after midnight. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering northeast late in
the afternoon. mostly sunny. waves around 1 foot. 

$$