Nearshore Marine Forecast
Issued by NWS Grand Rapids, MI

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FZUS53 KGRR 190805
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 AM EDT Tue Aug 19 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ849-192000-
Pentwater to Manistee MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...Southeast winds 15 to 25 knots. Cloudy with a
chance of rain showers and a slight chance of thunderstorms. Patchy
fog. Waves 1 to 3 feet.
.TODAY...East winds 10 to 15 knots backing north 10 to 20 knots.
Mostly cloudy until midday then becoming mostly sunny. Patchy fog
until midday. Waves 1 to 3 feet.
.TONIGHT...Northeast winds 10 to 20 knots. Partly cloudy. Waves 1 to
3 feet.
.WEDNESDAY...North winds 15 to 25 knots. Sunny. Waves 2 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 knots veering east 5 to
10 knots toward daybreak. Mostly clear. Waves 2 to 3 feet.
.THURSDAY...East winds 5 to 10 knots backing north 10 to 15 knots.
Sunny. Waves around 1 foot.
.FRIDAY...Southwest winds 5 to 15 knots. Mostly sunny. Waves 1 foot
or less.
.SATURDAY...West winds 10 to 20 knots. Sunny. Waves 2 to 3 feet.

$$

LMZ848-192000-
Whitehall to Pentwater MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...Southeast winds 15 to 25 knots. Rain showers
likely and a chance of thunderstorms. Patchy fog. Waves 2 to 3 feet.
.TODAY...Northeast winds 10 to 20 knots backing north. Patchy fog
until midday. Mostly cloudy with a slight chance of rain showers
until midday, then mostly sunny in the afternoon. Waves 2 to 3 feet.
.TONIGHT...Northeast winds 10 to 20 knots. Partly cloudy. Waves 2 to
3 feet.
.WEDNESDAY...North winds 10 to 20 knots increasing to 20 to 25 knots
late in the day. Sunny. Waves 1 to 3 feet building to 2 to 4 feet
late in the day.
.WEDNESDAY NIGHT...North winds 10 to 20 knots veering northeast
after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to
3 feet after midnight.
.THURSDAY...Northeast winds around 10 knots backing north. Sunny.
Waves around 1 foot.
.FRIDAY...South winds 5 to 10 knots. Sunny. Waves 1 foot or less.
.SATURDAY...West winds 15 to 20 knots. Sunny. Waves 2 to 3 feet.

$$

LMZ847-192000-
Grand Haven to Whitehall MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...South winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Patchy fog. Waves 2 to 4 feet.
.TODAY...West winds 10 to 20 knots veering north 15 to 25 knots.
Patchy fog until midday. Mostly cloudy with a slight chance of
showers and thunderstorms until midday, then mostly sunny in the
afternoon. Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots veering northeast 10 to
15 knots after midnight. Partly cloudy. Waves 2 to 3 feet subsiding
to 1 to 2 feet after midnight.
.WEDNESDAY...North winds 15 to 25 knots. Sunny. Waves 2 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 knots. Mostly clear.
Waves 2 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots backing north. Sunny.
Waves around 1 foot.
.FRIDAY...South winds around 10 knots veering southwest. Sunny.
Waves 1 foot or less.
.SATURDAY...West winds 15 to 20 knots. Sunny. Waves 2 to 4 feet.

$$

LMZ846-192000-
Holland to Grand Haven MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...South winds 15 to 25 knots. Rain showers
likely and a chance of thunderstorms. Patchy fog. Waves 2 to 3 feet.
.TODAY...West winds 10 to 20 knots veering northwest 15 to 25 knots.
Patchy fog until midday. Mostly cloudy with a chance of rain showers
and a slight chance of thunderstorms until midday, then mostly sunny
in the afternoon. Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots veering northeast 10 to
15 knots after midnight. Partly cloudy. Patchy fog. Waves 2 to
4 feet subsiding to 1 to 3 feet after midnight.
.WEDNESDAY...North winds 15 to 20 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 1 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots backing north late in the
day. Sunny. Waves 1 to 2 feet.
.FRIDAY...South winds 5 to 10 knots veering southwest. Sunny. Waves
less than 1 foot.
.SATURDAY...West winds 15 to 20 knots. Sunny. Waves 2 to 4 feet.

$$

LMZ845-192000-
South Haven to Holland MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...South winds 15 to 20 knots. Rain showers
likely and a chance of thunderstorms. Patchy fog. Waves 1 to 3 feet.
.TODAY...West winds 10 to 20 knots veering northwest 15 to 25 knots.
Patchy fog until midday. Mostly cloudy with a chance of rain showers
and a slight chance of thunderstorms until midday, then mostly sunny
in the afternoon. Waves 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots. Partly cloudy. Patchy fog.
Waves 2 to 4 feet subsiding to 1 to 3 feet toward daybreak.
.WEDNESDAY...North winds 15 to 20 knots. Sunny. Waves 1 to 3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 knots. Mostly clear.
Waves 2 to 3 feet.
.THURSDAY...Northeast winds 10 to 15 knots backing north late in the
day. Sunny. Waves 1 to 2 feet.
.FRIDAY...South winds 5 to 10 knots veering west. Sunny. Waves less
than 1 foot.
.SATURDAY...West winds 15 to 20 knots. Sunny. Waves 2 to 4 feet.

$$

LMZ844-192000-
St Joseph to South Haven MI-
405 AM EDT Tue Aug 19 2025

.EARLY THIS MORNING...South winds 10 to 20 knots. Rain showers
likely and a chance of thunderstorms. Patchy fog. Waves 1 to 2 feet.
.TODAY...West winds 15 to 20 knots veering northwest 15 to 25 knots.
Mostly cloudy. A chance of rain showers and a slight chance of
thunderstorms until midday. Patchy fog until midday. Waves 1 to
3 feet building to 2 to 4 feet.
.TONIGHT...North winds 15 to 25 knots. Partly cloudy. Patchy fog.
Waves 2 to 4 feet.
.WEDNESDAY...North winds 15 to 20 knots. Mostly sunny. Waves 2 to
3 feet.
.WEDNESDAY NIGHT...Northeast winds 10 to 20 knots veering east
toward daybreak. Mostly clear. Waves 2 to 4 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.
.FRIDAY...South winds 5 to 10 knots veering northwest late in the
day. Sunny. Waves 1 foot or less.
.SATURDAY...West winds 15 to 20 knots. Sunny. Waves 2 to 3 feet.

$$