National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS53 KGRR 181206
NSHGRR

Nearshore Marine Forecast
National Weather Service Grand Rapids MI
805 AM EDT Thu Apr 18 2024

For waters within five nautical miles of shore on Lake Michigan

LMZ849-182000-
Pentwater to Manistee MI-
805 AM EDT Thu Apr 18 2024

.TODAY...West winds 10 to 15 knots backing southwest late in the
day. Partly sunny until midday then becoming cloudy. A chance of
rain showers. Waves 1 to 3 feet.
.TONIGHT...Southwest winds 5 to 15 knots veering northwest 10 to
20 knots toward daybreak. Partly cloudy with a chance of rain
showers. Waves 1 foot or less building to 2 to 3 feet toward
daybreak.
.FRIDAY...West winds 15 to 20 knots. Mostly sunny. Waves 2 to
4 feet.
.FRIDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to
6 feet.
.SATURDAY...West winds to 30 knots decreasing to 15 to 20 knots late
in the day. Mostly sunny. Waves 4 to 6 feet.
.SUNDAY...West winds 15 to 20 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 20 knots. Mostly sunny. Waves 2 to
3 feet.

$$

LMZ848-182000-
Whitehall to Pentwater MI-
805 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

.TODAY...West winds 5 to 15 knots. Partly sunny until midday then
becoming cloudy. A chance of rain showers. Waves 2 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots increasing to 15 to
25 knots toward daybreak. Mostly cloudy with a chance of rain
showers. Waves around 1 foot building to 2 to 4 feet toward
daybreak.
.FRIDAY...West winds 15 to 25 knots. Sunny. Waves 3 to 5 feet.
.FRIDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 4 to
6 feet.
.SATURDAY...West winds to 30 knots. Mostly sunny. Waves 5 to 7 feet.
.SUNDAY...West winds 15 to 20 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds 15 to 20 knots backing south late in the
day. Mostly sunny. Waves 2 to 3 feet.

$$

LMZ847-182000-
Grand Haven to Whitehall MI-
805 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

.TODAY...West winds 10 to 15 knots. Partly sunny until midday then
becoming cloudy. A chance of rain showers. Waves 2 to 3 feet.
.TONIGHT...Northwest winds 5 to 15 knots increasing to 15 to
25 knots toward daybreak. Rain showers likely. Waves around 1 foot
building to 2 to 4 feet toward daybreak.
.FRIDAY...West winds to 30 knots decreasing to 15 to 25 knots late
in the day. Sunny. Waves 3 to 5 feet.
.FRIDAY NIGHT...West winds to 30 knots increasing to gales to
35 knots toward daybreak. Partly cloudy. Waves 3 to 5 feet building
to 5 to 7 feet toward daybreak.
.SATURDAY...West gales to 35 knots decreasing to 30 knots. Mostly
sunny. Waves 6 to 8 feet.
.SUNDAY...West winds 15 to 20 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds 15 to 20 knots backing south late in the
day. Mostly sunny. Waves 2 to 3 feet.

$$

LMZ846-182000-
Holland to Grand Haven MI-
805 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

.TODAY...West winds 5 to 15 knots. Partly sunny until midday then
becoming cloudy. A chance of rain showers. Waves 2 to 3 feet.
.TONIGHT...North winds 10 to 15 knots becoming northwest to 30 knots
toward daybreak. Rain showers likely. Waves around 1 foot building
to 3 to 5 feet toward daybreak.
.FRIDAY...West winds to 30 knots decreasing to 15 to 25 knots late
in the day. Sunny. Waves 4 to 6 feet.
.FRIDAY NIGHT...West winds 15 to 25 knots increasing to gales to
35 knots. Partly cloudy. Waves 3 to 5 feet building to 5 to 7 feet
toward daybreak.
.SATURDAY...West gales to 35 knots decreasing to 15 to 25 knots.
Mostly sunny. Waves 6 to 8 feet.
.SUNDAY...West winds 15 to 20 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds 15 to 20 knots. Mostly sunny. Waves 1 to
3 feet.

$$

LMZ845-182000-
South Haven to Holland MI-
805 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

.TODAY...West winds 5 to 15 knots veering northwest late in the day.
Partly sunny until midday then becoming cloudy. A chance of rain
showers. Waves 2 to 3 feet.
.TONIGHT...North winds 10 to 15 knots backing northwest 15 to
25 knots toward daybreak. Rain showers. Waves 1 to 2 feet building
to 2 to 4 feet toward daybreak.
.FRIDAY...West winds 15 to 25 knots backing southwest late in the
day. Sunny. Waves 4 to 6 feet.
.FRIDAY NIGHT...West winds to 30 knots. Partly cloudy. Waves 3 to
6 feet.
.SATURDAY...Northwest winds to 30 knots. Mostly sunny. Waves 5 to
7 feet.
.SUNDAY...West winds around 15 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds around 15 knots. Mostly sunny. Waves 1 to
3 feet.

$$

LMZ844-182000-
St Joseph to South Haven MI-
805 AM EDT Thu Apr 18 2024

...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY
AFTERNOON...

.TODAY...Northwest winds 5 to 15 knots veering north 10 to 20 knots
late in the day. Partly sunny until midday then becoming cloudy. A
slight chance of rain showers. Waves 1 to 3 feet.
.TONIGHT...North winds 15 to 20 knots backing northwest toward
daybreak. Rain showers and a slight chance of thunderstorms. Waves
1 to 2 feet building to 2 to 4 feet toward daybreak.
.FRIDAY...West winds 15 to 20 knots backing southwest 10 to 15 knots
late in the day. Sunny. Waves 3 to 5 feet.
.FRIDAY NIGHT...West winds 15 to 25 knots. Partly cloudy. Waves 2 to
4 feet.
.SATURDAY...Northwest winds 20 to 25 knots decreasing to 10 to
20 knots late in the day. Mostly sunny. Waves 4 to 6 feet.
.SUNDAY...West winds around 15 knots backing southwest late in the
day. Sunny. Waves 1 to 3 feet.
.MONDAY...Southwest winds 10 to 15 knots. Sunny. Waves 1 to 2 feet.

$$