Nearshore Marine Forecast
Issued by NWS Grand Rapids, MI

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FZUS53 KGRR 210307
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
1107 PM EDT Wed Aug 20 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ849-210915-
Pentwater to Manistee MI-
1107 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Northeast winds 5 to 15 knots. Mostly clear.
Waves 1 to 3 feet.
.THURSDAY...Northeast winds 5 to 10 knots backing north 10 to
15 knots. Sunny. Waves around 1 foot.
.THURSDAY NIGHT...North winds 5 to 15 knots veering south toward
daybreak. Mostly clear. Waves around 1 foot.
.FRIDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 foot
or less.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. Partly cloudy with a
chance of showers and thunderstorms. Waves 1 to 3 feet.
.SATURDAY...West winds 10 to 20 knots. Sunny. Waves 2 to 3 feet.
.SUNDAY...West winds 15 to 20 knots. Mostly sunny. Waves 2 to
4 feet.
.MONDAY...Northwest winds 15 to 25 knots. Mostly sunny. Waves 3 to
5 feet.

$$

LMZ848-210915-
Whitehall to Pentwater MI-
1107 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Northeast winds 5 to 15 knots. Mostly clear.
Waves 2 to 3 feet.
.THURSDAY...Northeast winds 5 to 10 knots backing north 10 to
15 knots. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots veering southeast 5 to
10 knots toward daybreak. Mostly clear. Waves 1 to 2 feet.
.FRIDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves 1 foot
or less.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. Partly cloudy with a
chance of showers and thunderstorms. Waves 2 to 3 feet.
.SATURDAY...West winds 15 to 20 knots. Mostly sunny. Waves 2 to
4 feet.
.SUNDAY...Northwest winds around 20 knots. Mostly sunny. Waves 3 to
5 feet.
.MONDAY...Northwest winds 20 to 25 knots. Mostly sunny with a chance
of rain showers. Waves 3 to 5 feet.

$$

LMZ847-210915-
Grand Haven to Whitehall MI-
1107 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 1 to 2 feet.
.THURSDAY...Northeast winds 10 to 15 knots backing north. Sunny.
Waves 1 to 2 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots veering southeast 5 to
10 knots toward daybreak. Mostly clear. Waves 1 to 2 feet.
.FRIDAY...South winds 5 to 10 knots veering southwest. Sunny. Waves
less than 1 foot.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. Partly cloudy with a
slight chance of showers and thunderstorms. Waves 2 to 3 feet.
.SATURDAY...West winds around 20 knots. Mostly sunny. Waves 2 to
4 feet.
.SUNDAY...West winds 20 to 25 knots. Mostly sunny. Waves 3 to
5 feet.
.MONDAY...Northwest winds 15 to 25 knots. Mostly sunny. Waves 3 to
5 feet.

$$

LMZ846-210915-
Holland to Grand Haven MI-
1107 PM EDT Wed Aug 20 2025

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots backing north. Sunny.
Waves 1 to 2 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots veering southeast 5 to
10 knots toward daybreak. Mostly clear. Waves 1 to 3 feet.
.FRIDAY...South winds 5 to 10 knots veering west. Sunny. Waves less
than 1 foot.
.FRIDAY NIGHT...Southwest winds 10 to 20 knots. Partly cloudy with a
slight chance of showers and thunderstorms. Waves 1 to 3 feet.
.SATURDAY...West winds around 20 knots. Mostly sunny. Waves 2 to
4 feet.
.SUNDAY...West winds 20 to 25 knots. Sunny. Waves 3 to 5 feet.
.MONDAY...Northwest winds 15 to 25 knots. Mostly sunny. Waves 4 to
6 feet.

$$

LMZ845-210915-
South Haven to Holland MI-
1107 PM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT THURSDAY...

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Clear. Waves 3 to
5 feet subsiding to 1 to 2 feet toward daybreak.
.THURSDAY...Northeast winds 10 to 15 knots backing north late in the
day. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots veering east 5 to
10 knots after midnight. Mostly clear. Waves 1 to 3 feet.
.FRIDAY...South winds 5 to 10 knots veering west. Sunny. Waves
1 foot or less.
.FRIDAY NIGHT...West winds 5 to 15 knots backing southwest after
midnight. Partly cloudy. Waves 1 to 2 feet.
.SATURDAY...West winds 15 to 20 knots. Mostly sunny. Waves 2 to
4 feet.
.SUNDAY...West winds 20 to 25 knots. Sunny. Waves 3 to 5 feet.
.MONDAY...Northwest winds 20 to 25 knots. Mostly sunny. Waves 4 to
6 feet.

$$

LMZ844-210915-
St Joseph to South Haven MI-
1107 PM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EDT THURSDAY...

.REST OF TONIGHT...Northeast winds 10 to 15 knots. Clear. Waves 3 to
5 feet subsiding to 1 to 3 feet toward daybreak.
.THURSDAY...Northeast winds 10 to 15 knots backing north late in the
day. Sunny. Waves 1 to 2 feet.
.THURSDAY NIGHT...North winds 10 to 15 knots veering east 5 to
10 knots late at night, then becoming around 5 knots toward
daybreak. Mostly clear. Waves 1 to 3 feet.
.FRIDAY...South winds around 5 knots veering northwest. Sunny. Waves
1 foot or less.
.FRIDAY NIGHT...West winds around 5 knots backing southwest 5 to
15 knots after midnight. Partly cloudy. Waves around 1 foot.
.SATURDAY...West winds 15 to 20 knots. Mostly sunny. Waves 1 to
3 feet.
.SUNDAY...West winds around 20 knots. Sunny. Waves 3 to 5 feet.
.MONDAY...Northwest winds around 20 knots. Mostly sunny. Waves 4 to
6 feet.

$$