050
FZUS53 KGRR 171518
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
1118 AM EDT Fri Oct 17 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ849-172100-
Pentwater to Manistee MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds to 30 knots. Cloudy. Waves 6 to 8 feet.
.TONIGHT...South winds to 30 knots. Mostly cloudy with a chance of
showers and thunderstorms. Waves 6 to 8 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers likely and
a chance of thunderstorms. Waves 5 to 7 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots backing east after
midnight. Rain showers and a slight chance of thunderstorms. Waves
3 to 5 feet subsiding to 2 to 3 feet after midnight.
.SUNDAY...North winds 15 to 25 knots backing northwest to 30 knots
in the late morning and afternoon. Rain showers and a slight chance
of thunderstorms. Waves 4 to 6 feet building to 7 to 10 feet in the
late morning and afternoon.
.MONDAY...West winds 10 to 15 knots becoming south to 30 knots in
the late morning and afternoon. Mostly sunny. Waves 3 to 5 feet
building to 6 to 9 feet early in the afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 7 to 10 feet.

$$

LMZ848-172100-
Whitehall to Pentwater MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds 20 to 25 knots. Mostly cloudy. Waves
6 to 8 feet.
.TONIGHT...South winds to 30 knots. Rain showers and a chance of
thunderstorms. Waves 6 to 8 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 5 to 7 feet.
.SATURDAY NIGHT...South winds 10 to 20 knots backing southeast 5 to
15 knots after midnight. Rain showers and a slight chance of
thunderstorms. Waves 3 to 5 feet.
.SUNDAY...North winds 15 to 25 knots becoming northwest gales to
35 knots. Rain showers and a slight chance of thunderstorms. Waves
4 to 6 feet building to 8 to 12 feet in the late morning and
afternoon.
.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 10 feet early in the afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 8 to 12 feet.

$$

LMZ847-172100-
Grand Haven to Whitehall MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds 20 to 25 knots. Mostly cloudy. Waves
5 to 7 feet.
.TONIGHT...South winds 20 to 25 knots. Rain showers and a chance of
thunderstorms. Waves 5 to 7 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 6 to 8 feet.
.SATURDAY NIGHT...South winds 5 to 15 knots. Rain showers and a
chance of thunderstorms. Waves 3 to 5 feet.
.SUNDAY...Northwest winds to 30 knots. Rain showers and a slight
chance of thunderstorms. Waves 4 to 6 feet building to 8 to 12 feet
in the late morning and afternoon.
.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 6 to 9 feet early in the afternoon.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 10 to 14 feet.

$$

LMZ846-172100-
Holland to Grand Haven MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds 15 to 25 knots. Mostly cloudy. Waves
3 to 5 feet.
.TONIGHT...South winds 15 to 25 knots. Partly cloudy with a chance
of rain showers. Waves 4 to 6 feet building to 5 to 7 feet after
midnight.
.SATURDAY...Southwest winds 15 to 25 knots. Rain showers and a
chance of thunderstorms. Waves 5 to 7 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 3 to 5 feet.
.SUNDAY...Northwest winds 10 to 20 knots increasing to gales to
35 knots. Rain showers and a slight chance of thunderstorms. Waves
5 to 7 feet building to 9 to 13 feet in the late morning and
afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Mostly sunny. Waves 5 to 7 feet.
.TUESDAY...West winds to 30 knots. Partly sunny with rain showers
likely. Waves 10 to 14 feet.

$$

LMZ845-172100-
South Haven to Holland MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds 15 to 20 knots. Mostly cloudy. Waves
2 to 3 feet.
.TONIGHT...South winds 15 to 25 knots. Rain showers likely. Waves
1 to 3 feet building to 3 to 5 feet in the late evening and
overnight.
.SATURDAY...Southwest winds 15 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 3 to 5 feet.
.SATURDAY NIGHT...Southwest winds 10 to 20 knots. Rain showers and a
chance of thunderstorms. Waves 2 to 4 feet.
.SUNDAY...West winds 15 to 20 knots becoming northwest gales to
35 knots. Rain showers and a slight chance of thunderstorms. Waves
6 to 8 feet building to 11 to 15 feet in the late morning and
afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Sunny. Waves 4 to 6 feet.
.TUESDAY...West winds to 30 knots. Mostly sunny with rain showers
likely. Waves 9 to 13 feet.

$$

LMZ844-172100-
St Joseph to South Haven MI-
1118 AM EDT Fri Oct 17 2025

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

.REST OF TODAY...South winds 15 to 20 knots. Mostly cloudy. Waves
1 to 2 feet.
.TONIGHT...South winds 15 to 20 knots. Partly cloudy with a chance
of rain showers. Waves 2 to 4 feet.
.SATURDAY...South winds 15 to 20 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 4 feet.
.SUNDAY...Northwest winds to 30 knots increasing to gales to
35 knots early in the afternoon. Rain showers and a slight chance of
thunderstorms. Waves 6 to 8 feet building to 11 to 15 feet in the
late morning and afternoon.
.MONDAY...West winds 15 to 25 knots backing south in the late
morning and afternoon. Sunny. Waves 4 to 6 feet subsiding to 2 to
4 feet early in the afternoon.
.TUESDAY...West winds to 30 knots. Mostly sunny with a chance of
rain showers. Waves 8 to 12 feet.

$$