340
FZUS53 KGRR 210458
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
1258 AM EDT Tue Jul 21 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ849-210800-
Pentwater to Manistee MI-
1258 AM EDT Tue Jul 21 2026

...SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING...
...SEVERE THUNDERSTORM WATCH 505 IN EFFECT UNTIL 2 AM EDT EARLY THIS
MORNING...

.REST OF TONIGHT...Southwest winds 15 to 25 knots. Partly cloudy
with a chance of showers and thunderstorms. Patchy smoke. Some
thunderstorms may be severe with damaging winds and large hail.
Waves 4 to 6 feet.
.TUESDAY...West winds 15 to 25 knots veering northwest to 30 knots
early in the afternoon. Mostly sunny with a slight chance of showers
and thunderstorms. Waves 4 to 6 feet.
.TUESDAY NIGHT...North gales to 35 knots decreasing to 30 knots
after midnight. Partly cloudy. Waves 6 to 9 feet.
.WEDNESDAY...North winds to 30 knots. Sunny. Waves 6 to 8 feet.
.WEDNESDAY NIGHT...North winds 10 to 20 knots veering northeast 5 to
10 knots in the late evening and early morning, then veering south
after midnight. Mostly clear. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late evening and overnight.
.THURSDAY...Southwest winds 5 to 15 knots. Sunny. Waves around
1 foot.
.FRIDAY...Southwest winds 10 to 15 knots. Sunny. Waves 1 to 3 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Mostly sunny. Waves 2 to
3 feet.

$$

LMZ848-210800-
Whitehall to Pentwater MI-
1258 AM EDT Tue Jul 21 2026

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

.REST OF TONIGHT...Southwest winds to 30 knots. Partly cloudy with a
chance of showers and thunderstorms. Waves 5 to 7 feet.
.TUESDAY...West winds around 25 knots veering northwest early in the
afternoon. Mostly sunny. Waves 5 to 7 feet.
.TUESDAY NIGHT...North gales to 35 knots decreasing to 30 knots
after midnight. Partly cloudy. Waves 6 to 9 feet.
.WEDNESDAY...North winds to 30 knots. Mostly sunny. Waves 6 to
8 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots becoming northeast
5 to 10 knots in the late evening and early morning, then veering
south after midnight. Mostly clear. Waves 3 to 5 feet subsiding to
1 to 3 feet in the late evening and overnight.
.THURSDAY...Southwest winds 10 to 15 knots. Sunny. Waves around
1 foot.
.FRIDAY...Southwest winds 10 to 15 knots. Mostly sunny. Waves 1 to
2 feet.
.SATURDAY...Southwest winds 15 to 25 knots. Mostly sunny. Waves 1 to
3 feet.

$$

LMZ847-210800-
Grand Haven to Whitehall MI-
1258 AM EDT Tue Jul 21 2026

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

.REST OF TONIGHT...Southwest winds to 30 knots. Partly cloudy with a
chance of showers and thunderstorms. Waves 5 to 7 feet.
.TUESDAY...Northwest winds to 30 knots. Sunny. Waves 5 to 7 feet.
.TUESDAY NIGHT...North winds to 30 knots. Partly cloudy. Waves 5 to
7 feet.
.WEDNESDAY...North winds to 30 knots. Mostly sunny. Waves 5 to
7 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots decreasing to 5 to
15 knots in the late evening and early morning, then veering east
after midnight. Mostly clear. Waves 3 to 5 feet subsiding to 1 to
3 feet in the late evening and overnight.
.THURSDAY...South winds 5 to 10 knots veering southwest 10 to
15 knots in the late morning and afternoon. Sunny. Waves around
1 foot.
.FRIDAY...Southwest winds 10 to 15 knots. Mostly sunny. Waves around
1 foot.
.SATURDAY...Southwest winds 10 to 20 knots. Mostly sunny. Waves
around 1 foot.

$$

LMZ846-210800-
Holland to Grand Haven MI-
1258 AM EDT Tue Jul 21 2026

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

.REST OF TONIGHT...Southwest winds to 30 knots. Partly cloudy with a
chance of showers and thunderstorms. Waves 5 to 7 feet.
.TUESDAY...West winds around 25 knots veering northwest early in the
afternoon. Sunny. Waves 5 to 7 feet.
.TUESDAY NIGHT...North winds to 30 knots. Partly cloudy. Waves 4 to
6 feet.
.WEDNESDAY...North winds to 30 knots. Mostly sunny. Waves 4 to
6 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots decreasing to 5 to
15 knots in the late evening and early morning, then veering
northeast after midnight. Mostly clear. Waves 4 to 6 feet subsiding
to 1 to 2 feet.
.THURSDAY...Southeast winds 5 to 10 knots veering west in the late
morning and afternoon. Sunny. Waves around 1 foot.
.FRIDAY...South winds around 10 knots veering west early in the
afternoon. Mostly sunny. Waves around 1 foot.
.SATURDAY...South winds 10 to 15 knots veering southwest early in
the afternoon. Sunny. Waves 1 foot or less.

$$

LMZ845-210800-
South Haven to Holland MI-
1258 AM EDT Tue Jul 21 2026

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

.REST OF TONIGHT...Southwest winds 20 to 25 knots. Partly cloudy
with a chance of showers and thunderstorms. Waves 4 to 6 feet.
.TUESDAY...West winds 20 to 25 knots veering northwest early in the
afternoon. Mostly sunny. Waves 4 to 6 feet.
.TUESDAY NIGHT...North winds to 30 knots. Partly cloudy. Waves 5 to
7 feet.
.WEDNESDAY...North winds 20 to 25 knots. Mostly sunny. Waves 5 to
7 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots decreasing to 10 to
15 knots in the late evening and early morning, then veering
northeast 5 to 10 knots after midnight. Mostly clear. Waves 4 to
6 feet subsiding to 1 to 3 feet.
.THURSDAY...Southeast winds around 5 knots veering southwest in the
late morning and early afternoon, then veering west early in the
afternoon. Sunny. Waves around 1 foot.
.FRIDAY...South winds around 10 knots veering west early in the
afternoon. Mostly sunny. Waves 1 foot or less.
.SATURDAY...South winds 5 to 10 knots veering southwest early in the
afternoon. Sunny. Waves 1 foot or less.

$$

LMZ844-210800-
St Joseph to South Haven MI-
1258 AM EDT Tue Jul 21 2026

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

.REST OF TONIGHT...Southwest winds 20 to 25 knots. Partly cloudy
with a slight chance of showers and thunderstorms. Waves 4 to
6 feet.
.TUESDAY...West winds 20 to 25 knots veering northwest early in the
afternoon. Mostly sunny. Waves 4 to 6 feet.
.TUESDAY NIGHT...North winds to 30 knots. Partly cloudy. Waves 6 to
8 feet.
.WEDNESDAY...North winds 20 to 25 knots. Mostly sunny. Waves 6 to
8 feet.
.WEDNESDAY NIGHT...North winds 15 to 25 knots decreasing to 5 to
15 knots in the late evening and early morning, then veering
northeast after midnight. Mostly clear. Waves 5 to 7 feet subsiding
to 2 to 3 feet after midnight.
.THURSDAY...Southeast winds around 5 knots veering southwest in the
late morning and early afternoon, then veering northwest early in
the afternoon. Sunny. Waves 1 to 2 feet.
.FRIDAY...South winds 5 to 10 knots veering west early in the
afternoon. Mostly sunny. Waves less than 1 foot.
.SATURDAY...South winds 5 to 10 knots veering southwest in the late
morning and afternoon. Sunny. Waves less than 1 foot.

$$