fzus53 kdtx 191338
nshdtx
expires:202608192145;;993202

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
938 am edt wed aug 19 2026

for waters within five nautical miles of shore

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.


lhz442-192145-
harbor beach to port sanilac mi-
938 am edt wed aug 19 2026

.rest of today...north winds 10 to 15 knots becoming northeast
5 to 10 knots late in the afternoon. mostly sunny. waves 2 feet
or less. 
.tonight...northeast winds 5 to 10 knots. mostly clear. waves
2 feet or less. 
.thursday...northeast winds 5 to 10 knots. mostly sunny. waves
2 feet or less. 
.thursday night...east winds 5 to 10 knots veering to the
southeast after midnight. mostly clear. waves 2 feet or less. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191338
nshdtx
expires:202608192145;;993203

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
938 am edt wed aug 19 2026

for waters within five nautical miles of shore

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.


lhz443-192145-
port sanilac to port huron mi-
938 am edt wed aug 19 2026

.rest of today...north winds 10 to 15 knots veering to the
northeast late in the afternoon. partly cloudy late in the
morning then clearing. waves 2 feet or less. 
.tonight...northeast winds 10 to 15 knots becoming east 5 to
10 knots in the late evening and overnight. mostly clear. waves
2 feet or less. 
.thursday...northeast winds 5 to 10 knots. mostly sunny. waves
2 feet or less. 
.thursday night...east winds 5 to 10 knots veering to the
southeast after midnight. clear. waves 2 feet or less. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191338
nshdtx
expires:202608192145;;993204

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
938 am edt wed aug 19 2026

for waters within five nautical miles of shore

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.


lez444-192145-
michigan waters of lake erie from detroit river to north cape mi-
938 am edt wed aug 19 2026

.rest of today...west winds 10 to 15 knots diminishing to 5 to
10 knots early in the afternoon, then backing to the southwest
late in the afternoon. partly cloudy. a slight chance of showers
late in the morning, then a slight chance of showers and
thunderstorms in the afternoon. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots backing to the northeast
in the late evening and overnight. partly cloudy with a slight
chance of showers and thunderstorms early in the evening, then
partly cloudy with a slight chance of showers in the late evening
and overnight. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots. partly cloudy with a
slight chance of showers early in the morning, then mostly sunny
in the late morning and afternoon. waves 2 feet or less. 
.thursday night...east winds 5 to 10 knots. clear. waves 2 feet
or less. 

see lake erie open lake forecast for days 3 through 5.

the water temperature at belle isle is 75 degrees.

$$

fzus53 kdtx 191338
nshdtx
expires:202608192145;;993199

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
938 am edt wed aug 19 2026

for waters within five nautical miles of shore

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.


lhz422-192145-
inner saginaw bay sw of point au gres to bay port mi-
938 am edt wed aug 19 2026

.rest of today...north winds 5 to 10 knots veering to the east
late in the afternoon. mostly sunny. waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots. mostly clear. waves
2 feet or less. 
.thursday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. mostly sunny. waves 2 feet or less. 
.thursday night...southeast winds 10 to 15 knots veering to the
south after midnight. mostly clear. waves 2 feet or less. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002771

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz847-200800-
grand haven to whitehall mi-
211 pm edt wed aug 19 2026

.through early evening...northwest winds 10 to 20 knots. partly
sunny. waves around 1 foot. 
.tonight...north winds 10 to 20 knots veering northeast 5 to
15 knots in the late evening and overnight. mostly clear. waves 1 to
2 feet. 
.thursday...northeast winds 5 to 10 knots veering southeast in the
late morning and early afternoon, then veering west early in the
afternoon. sunny. waves less than 1 foot. 
.thursday night...northwest winds 5 to 10 knots veering east in the
late evening and early morning, then veering southeast 10 to
15 knots after midnight. partly cloudy. waves 1 foot or less. 
.friday...south winds 15 to 20 knots. partly sunny with a slight
chance of rain showers. waves 1 to 3 feet building to 2 to 4 feet in
the late morning and afternoon. 
.friday night...southwest winds 15 to 20 knots veering west after
midnight. partly cloudy with a chance of rain showers. waves 2 to
4 feet. 
.saturday...northwest winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.sunday...north winds 15 to 25 knots backing northwest to 30 knots
early in the afternoon. sunny. waves 3 to 5 feet. 
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002770

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz848-200800-
whitehall to pentwater mi-
211 pm edt wed aug 19 2026

.through early evening...north winds 10 to 15 knots. mostly sunny.
waves 1 foot or less. 
.tonight...north winds 5 to 15 knots veering northeast in the late
evening and overnight. mostly clear. waves 1 foot or less. 
.thursday...east winds 5 to 10 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves 1 foot or less. 
.thursday night...southwest winds 5 to 15 knots backing southeast in
the late evening and overnight. partly cloudy. waves around 1 foot. 
.friday...south winds 15 to 20 knots. partly sunny with a slight
chance of rain showers. waves 1 to 3 feet building to 3 to 5 feet in
the late morning and afternoon. 
.friday night...south winds 10 to 20 knots veering west after
midnight. partly cloudy with a chance of rain showers. waves 3 to
5 feet subsiding to 2 to 4 feet after midnight. 
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.sunday...north winds 15 to 25 knots backing northwest to 30 knots
early in the afternoon. sunny. waves 3 to 5 feet. 
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002769

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz849-200800-
pentwater to manistee mi-
211 pm edt wed aug 19 2026

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

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002774

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz844-200800-
st joseph to south haven mi-
211 pm edt wed aug 19 2026

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

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002773

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz845-200800-
south haven to holland mi-
211 pm edt wed aug 19 2026

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

$$

fzus53 kgrr 191811
nshgrr
expires:202608200800;;002772

nearshore marine forecast
national weather service grand rapids mi
211 pm edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz846-200800-
holland to grand haven mi-
211 pm edt wed aug 19 2026

.through early evening...northwest winds 10 to 20 knots. partly
sunny. waves around 1 foot. 
.tonight...north winds 10 to 20 knots veering northeast around
10 knots after midnight. partly cloudy. waves 1 to 2 feet. 
.thursday...northeast winds 5 to 10 knots backing northwest early in
the afternoon. sunny. waves less than 1 foot. 
.thursday night...northwest winds 5 to 10 knots veering northeast in
the late evening and early morning, then veering southeast 10 to
15 knots after midnight. partly cloudy. waves 1 foot or less. 
.friday...south winds 10 to 20 knots veering southwest early in the
afternoon. mostly sunny. waves 1 to 3 feet. 
.friday night...southwest winds 10 to 15 knots becoming around
15 knots after midnight. partly cloudy with a chance of rain
showers. waves 1 to 3 feet. 
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.sunday...north winds 10 to 15 knots becoming northwest to 30 knots
in the late morning and afternoon. sunny. waves 3 to 5 feet. 
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kiwx 191410
nshiwx
expires:202608192015;;994276

nearshore marine forecast
national weather service northern indiana
1010 am edt wed aug 19 2026

for waters within five nautical miles of shore on lake michigan


lmz043-046-192015-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
1010 am edt wed aug 19 2026

.rest of today...north winds 10 knots or less. partly sunny. 
waves 1 to 2 feet. 
.tonight...north winds 10 knots or less becoming northeast.
mostly cloudy. waves 1 to 2 feet. 
.thursday...northeast winds less than 10 knots. sunny. waves
1 foot or less. 
.thursday night...north winds less than 10 knots becoming south.
clear in the evening, then becoming partly cloudy. waves 1 foot
or less. 

the water temperature at st. joseph is 72 degrees and at michigan
city is 69 degrees.

$$