451
FZUS53 KGRR 170623
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
223 AM EDT Fri Oct 17 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ849-170800-
Pentwater to Manistee MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Rain showers likely.
Waves 2 to 3 feet.
.FRIDAY...South winds to 30 knots. Mostly cloudy with rain showers
likely. Waves 3 to 5 feet building to 6 to 9 feet in the late
morning and afternoon.
.FRIDAY NIGHT...South winds to 30 knots. Mostly cloudy with a chance
of showers and thunderstorms. Waves 7 to 10 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers likely and
a chance of thunderstorms. Waves 6 to 9 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots backing east after
midnight. Rain showers and a chance of thunderstorms. Waves 3 to
5 feet.
.SUNDAY...North winds 15 to 25 knots backing northwest to 30 knots
in the late morning and afternoon. Rain showers. Waves 7 to 11 feet.
.MONDAY...West winds 10 to 15 knots becoming south to 30 knots in
the late morning and afternoon. Mostly sunny. Waves 4 to 6 feet
building to 7 to 11 feet in the late morning and afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 9 to 13 feet.

$$

LMZ848-170800-
Whitehall to Pentwater MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Rain showers likely.
Waves 2 to 4 feet.
.FRIDAY...South winds to 30 knots. Mostly cloudy with a slight
chance of rain showers. Waves 4 to 6 feet building to 6 to 9 feet in
the late morning and afternoon.
.FRIDAY NIGHT...South winds to 30 knots. Partly cloudy with a chance
of showers and thunderstorms. Waves 7 to 11 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 7 to 10 feet.
.SATURDAY NIGHT...South winds 10 to 20 knots backing southeast 5 to
15 knots after midnight. Rain showers and a chance of thunderstorms.
Waves 4 to 6 feet.
.SUNDAY...North winds 15 to 25 knots becoming northwest gales to
35 knots. Rain showers. Waves 9 to 13 feet building to 10 to 14 feet
early in the afternoon.
.MONDAY...West winds 10 to 15 knots becoming south to 30 knots in
the late morning and afternoon. Mostly sunny. Waves 5 to 7 feet
building to 9 to 13 feet in the late morning and afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 12 to 16 feet.

$$

LMZ847-170800-
Grand Haven to Whitehall MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy with a
chance of rain showers. Waves 2 to 4 feet.
.FRIDAY...South winds 15 to 25 knots. Mostly cloudy with a chance of
rain showers. Waves 5 to 7 feet building to 6 to 8 feet early in the
afternoon.
.FRIDAY NIGHT...South winds 20 to 25 knots. Partly cloudy with a
slight chance of showers and thunderstorms. Waves 7 to 10 feet.
.SATURDAY...Southwest winds to 30 knots. Rain showers and a chance
of thunderstorms. Waves 7 to 10 feet.
.SATURDAY NIGHT...South winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 4 to 6 feet building to 5 to 7 feet
after midnight.
.SUNDAY...Northwest winds to 30 knots. Rain showers. Waves 10 to
14 feet building to 11 to 15 feet early in the afternoon.
.MONDAY...West winds 10 to 15 knots becoming south to 30 knots in
the late morning and afternoon. Mostly sunny. Waves 7 to 10 feet
building to 8 to 12 feet early in the afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 14 to 18 feet.

$$

LMZ846-170800-
Holland to Grand Haven MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy with a
chance of rain showers. Waves 1 to 3 feet.
.FRIDAY...South winds 15 to 25 knots. Mostly cloudy with a chance of
rain showers. Waves 4 to 6 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots. Partly cloudy with a
chance of rain showers. Waves 4 to 6 feet building to 6 to 9 feet in
the late evening and overnight.
.SATURDAY...Southwest winds 20 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 6 to 9 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 3 to 5 feet building to 5 to 7 feet
after midnight.
.SUNDAY...Northwest winds 10 to 20 knots increasing to gales to
35 knots. Rain showers. Waves 12 to 16 feet building to 13 to
17 feet early in the afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Mostly sunny. Waves 6 to 9 feet.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 13 to 17 feet building to 15 to 19 feet early in the
afternoon.

$$

LMZ845-170800-
South Haven to Holland MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy with a
chance of rain showers. Waves 1 to 2 feet.
.FRIDAY...South winds 15 to 20 knots. Mostly cloudy. Waves 2 to
4 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots. Partly cloudy with a
slight chance of rain showers. Waves 4 to 6 feet.
.SATURDAY...South winds 20 to 25 knots. Rain showers and a chance of
thunderstorms. Waves 4 to 6 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 2 to 4 feet building to 5 to 7 feet
after midnight.
.SUNDAY...West winds 15 to 20 knots becoming northwest gales to
35 knots. Rain showers. Waves 13 to 17 feet building to 14 to
18 feet early in the afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Sunny. Waves 6 to 8 feet.
.TUESDAY...West winds to 30 knots. Mostly sunny with rain showers
likely. Waves 12 to 16 feet building to 15 to 19 feet early in the
afternoon.

$$

LMZ844-170800-
St Joseph to South Haven MI-
223 AM EDT Fri Oct 17 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY EVENING...

.REST OF TONIGHT...South winds 15 to 20 knots. Partly cloudy with a
slight chance of rain showers. Waves 1 to 2 feet.
.FRIDAY...South winds 15 to 20 knots. Partly sunny. Waves 1 to
3 feet.
.FRIDAY NIGHT...South winds 15 to 25 knots. Partly cloudy with a
chance of rain showers. Waves 2 to 4 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 2 to 4 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 2 to 3 feet building to 4 to 6 feet
after midnight.
.SUNDAY...Northwest winds to 30 knots increasing to gales to
35 knots early in the afternoon. Rain showers. Waves 13 to 17 feet
building to 14 to 18 feet early in the afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Sunny. Waves 6 to 8 feet.
.TUESDAY...West winds to 30 knots. Mostly sunny with a chance of
rain showers. Waves 10 to 14 feet building to 13 to 17 feet early in
the afternoon.

$$