fzus53 kdtx 171354
nshdtx
expires:202609172200;;603153

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
954 am edt thu sep 17 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.


lhz442-172200-
harbor beach to port sanilac mi-
954 am edt thu sep 17 2026

.rest of today...northeast winds 5 to 10 knots becoming north
10 to 15 knots in the afternoon. partly cloudy. waves 2 feet or
less. 
.tonight...north winds 10 to 15 knots. mostly clear. waves 1 to
3 feet. 
.friday...north winds 10 to 15 knots becoming northeast 15 to
20 knots early in the afternoon. mostly sunny early in the
morning becoming partly cloudy. waves 2 to 4 feet. 
.friday night...northeast winds 15 to 20 knots becoming east
10 to 15 knots in the late evening and overnight. partly cloudy
early in the evening becoming mostly cloudy. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 

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

$$

fzus53 kdtx 171354
nshdtx
expires:202609172200;;603154

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
954 am edt thu sep 17 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.


lhz443-172200-
port sanilac to port huron mi-
954 am edt thu sep 17 2026

.rest of today...northeast winds 5 to 10 knots becoming north
10 to 15 knots in the afternoon. partly cloudy. waves 2 feet or
less. 
.tonight...north winds 10 to 15 knots. mostly clear. waves 1 to
3 feet. 
.friday...north winds 10 to 15 knots increasing to 15 to 20 knots
early in the afternoon. mostly sunny until late afternoon
becoming partly cloudy. waves 2 to 4 feet. 
.friday night...northeast winds 15 to 20 knots becoming east
10 to 15 knots after midnight. partly cloudy early in the evening
becoming mostly cloudy. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 

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

$$

fzus53 kdtx 171354
nshdtx
expires:202609172200;;603155

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
954 am edt thu sep 17 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.


lez444-172200-
michigan waters of lake erie from detroit river to north cape mi-
954 am edt thu sep 17 2026

.rest of today...north winds 5 to 10 knots in the late morning
and early afternoon becoming light and variable. mostly cloudy. a
slight chance of showers late in the morning. waves 2 feet or
less. 
.tonight...northeast winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. mostly cloudy until
early morning becoming partly cloudy. waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots diminishing to 5 to
10 knots early in the afternoon. partly cloudy. waves 2 feet or
less. 
.friday night...northeast winds 10 to 15 knots. partly cloudy
early in the evening becoming mostly cloudy. waves 1 to 3 feet. 

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

the water temperature at belle isle is 69 degrees.

$$

fzus53 kdtx 171354
nshdtx
expires:202609172200;;603150

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
954 am edt thu sep 17 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.


lhz422-172200-
inner saginaw bay sw of point au gres to bay port mi-
954 am edt thu sep 17 2026

.rest of today...northeast winds 5 to 10 knots. partly cloudy.
waves 2 feet or less. 
.tonight...northeast winds 5 to 10 knots becoming north 10 to
15 knots after midnight. mostly clear. waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. mostly sunny early in the
morning becoming partly cloudy. waves 1 to 3 feet. 
.friday night...east winds 15 to 20 knots diminishing to 10 to
15 knots after midnight. partly cloudy early in the evening
becoming mostly cloudy. a chance of showers after midnight. waves
1 to 3 feet. 

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

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608030

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180800-
grand haven to whitehall mi-
1211 pm edt thu sep 17 2026

.through early evening...northeast winds around 10 knots. mostly
cloudy. waves less than 1 foot. 
.tonight...northeast winds 10 to 15 knots. 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. cloudy with rain showers.
waves 1 to 3 feet. 
.saturday...southeast winds 20 to 25 knots. rain showers and a
chance of thunderstorms. waves 2 to 4 feet. 
.saturday night...east winds 15 to 25 knots backing northeast after
midnight. rain showers. waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight. 
.sunday...northeast winds 15 to 25 knots. mostly cloudy with a
chance of rain showers. waves 1 to 2 feet. 
.monday...east winds 20 to 25 knots. mostly cloudy. waves 1 to
3 feet. 
.tuesday...east winds 15 to 25 knots. partly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608029

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180800-
whitehall to pentwater mi-
1211 pm edt thu sep 17 2026

.through early evening...northeast winds around 10 knots. partly
sunny. waves less than 1 foot. 
.tonight...north winds 10 to 15 knots veering northeast after
midnight. partly cloudy. waves 1 to 2 feet. 
.friday...northeast winds 10 to 15 knots. partly sunny. waves around
1 foot. 
.friday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. cloudy with rain showers. waves 1 to
3 feet. 
.saturday...southeast winds 20 to 25 knots. rain showers and a
slight chance of thunderstorms. waves 2 to 4 feet. 
.saturday night...east winds 15 to 25 knots backing northeast after
midnight. rain showers. waves 2 to 4 feet subsiding to 1 to 3 feet
in the late evening and overnight. 
.sunday...northeast winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet. 
.monday...east winds 15 to 25 knots. mostly cloudy. waves 1 to
2 feet. 
.tuesday...east winds 15 to 20 knots. partly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608028

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180800-
pentwater to manistee mi-
1211 pm edt thu sep 17 2026

.through early evening...north winds 5 to 15 knots. partly sunny.
waves 1 foot or less. 
.tonight...northeast winds 10 to 15 knots. partly cloudy. waves
around 1 foot. 
.friday...northeast winds 5 to 15 knots. partly sunny. waves around
1 foot. 
.friday night...east winds 10 to 20 knots. cloudy with rain showers.
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...east winds 10 to 20 knots backing northeast after
midnight. cloudy with a chance of rain showers. waves 1 to 2 feet. 
.sunday...northeast winds 15 to 25 knots. partly sunny. waves 2 to
4 feet. 
.monday...east winds 10 to 20 knots. mostly cloudy. waves 1 to
2 feet. 
.tuesday...east winds 10 to 20 knots. partly sunny. waves around
1 foot. 

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608033

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180800-
st joseph to south haven mi-
1211 pm edt thu sep 17 2026

.through early evening...north winds 5 to 10 knots. mostly cloudy
with a slight chance of rain showers. waves less than 1 foot. 
.tonight...northeast winds 10 to 15 knots. mostly cloudy in the
evening then becoming partly cloudy. waves around 1 foot. 
.friday...east winds 10 to 15 knots. mostly sunny. waves around
1 foot. 
.friday night...east winds 10 to 20 knots. mostly cloudy with a
slight chance of rain showers. waves 1 to 2 feet. 
.saturday...southeast winds 10 to 20 knots. rain showers and a
slight chance of thunderstorms. waves 1 to 2 feet. 
.saturday night...southeast winds 10 to 15 knots backing north after
midnight. rain showers and a chance of thunderstorms. waves 1 to
2 feet. 
.sunday...northeast winds 15 to 20 knots. mostly cloudy with rain
showers likely and a chance of thunderstorms. waves 2 to 4 feet. 
.monday...east winds 15 to 25 knots. mostly cloudy with a chance of
rain showers. waves 1 to 3 feet. 
.tuesday...east winds 15 to 20 knots. partly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608032

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180800-
south haven to holland mi-
1211 pm edt thu sep 17 2026

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

$$

fzus53 kgrr 171611
nshgrr
expires:202609180800;;608031

nearshore marine forecast
national weather service grand rapids mi
1210 pm edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180800-
holland to grand haven mi-
1211 pm edt thu sep 17 2026

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

$$

fzus53 kiwx 171447
nshiwx
expires:202609172030;;605013

nearshore marine forecast
national weather service northern indiana
1047 am edt thu sep 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-172030-
new buffalo mi to st joseph mi-
1047 am edt thu sep 17 2026

.rest of today...west 5 to 10 knots becoming north in the
afternoon. showers likely with a chance of thunderstorms late 
this morning, then a slight chance of showers and thunderstorms 
early this afternoon. waves 1 foot or less. 
.tonight...north winds 5 to 10 knots becoming northeast. mostly
cloudy. waves 2 feet or less. 
.friday...northeast winds 5 to 10 knots becoming east. partly
sunny. waves 1 foot or less. 
.friday night...east winds 5 to 15 knots becoming southeast. a
chance of showers overnight. waves 2 feet 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.

$$