504
FZUS63 KMKX 031354
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
854 AM CDT Thu Apr 3 2025

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan.

Waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.SYNOPSIS...

Low pressure of 29.3 inches over Lake Superior will pull away to
the northeast today, while high pressure of 30.2 inches begins to
build in from the west. Gusty west to southwest winds are expected
today as a result, especially this morning into early afternoon
when a Gale Warning is in effect. Lighter winds are expected
Friday under the high, as it strengthens to 30.4 inches. Breezy
winds are expected at times over the weekend as low pressure and a
cold front swing through the region.

LMZ261-362-364-366-563-565-032115-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
854 AM CDT Thu Apr 3 2025

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT UNTIL 2 PM CDT THIS AFTERNOON...

.REST OF TODAY...Southwest winds to 30 kt increasing to gales to
35 kt, then becoming west to 30 kt late. Waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft, then subsiding to 5 to 8 ft occasionally to 10 ft.
.TONIGHT...West winds 10 to 20 kt becoming northwest 10 to 15 kt,
then diminishing to 5 to 10 kt late. Waves 3 to 5 ft subsiding to
1 to 3 ft.
.FRIDAY...North winds 5 to 10 kt becoming northeast. Waves 1 to
2 ft.
.FRIDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Chance
of rain showers overnight. Waves 1 to 2 ft.
.SATURDAY...North winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt becoming northwest.
Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming west. Waves 1 to
3 ft.
.MONDAY...North winds 15 to 25 kt increasing to 30 kt. Chance of
snow. Waves 3 to 5 ft.

$$

LMZ567-868-032115-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
854 AM CDT Thu Apr 3 2025

TWO RIVERS WI TO MANISTEE MI SOUTH TO SHEBOYGAN WI TO PENTWATER
MI...

.REST OF TODAY...Southwest winds to 30 kt diminishing to 10 to
20 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.TONIGHT...West winds 10 to 20 kt becoming northwest 5 to 10 kt
late in the evening, then becoming north 10 to 15 kt overnight.
Waves 2 to 4 ft subsiding to 1 to 2 ft.
.FRIDAY...Northeast winds 5 to 10 kt becoming north 10 to 15 kt.
Waves 1 to 2 ft.
.FRIDAY NIGHT...Northeast winds 10 to 15 kt. Chance of rain
showers. Waves 1 to 3 ft.
.SATURDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...North winds 10 to 15 kt. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...North winds 15 to 25 kt. Chance of snow. Waves 4 to
6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-032115-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
854 AM CDT Thu Apr 3 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds to 30 kt becoming west 10 to
20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to
5 ft.
.TONIGHT...West winds 10 to 15 kt veering to northeast 5 to
10 kt. Waves 2 to 4 ft subsiding to 1 ft or less.
.FRIDAY...Northeast winds 10 to 15 kt. Waves 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 10 to 20 kt. Rain showers. Waves
2 to 4 ft.
.SATURDAY...North winds 10 to 20 kt. Chance of rain and rain
showers in the morning, then chance of rain in the afternoon.
Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY...North winds 10 to 20 kt becoming northwest. Waves 3 to
5 ft.
.MONDAY...Northwest winds 15 to 25 kt becoming north. Chance of
snow. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft.

$$

LMZ761-032115-
MAFOR 0316/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11650 11640 11630 11620
12710 11800 11100. Waves 7 to 10 feet subsiding to 4 to 7 feet
this afternoon. Waves 3 to 5 feet subsiding to 1 foot or less
tonight. Waves 1 foot or less Friday morning.

MICHIGAN SOUTH 11640 11620 11610 11700 11800 11100 11110 11210.
Waves 4 to 7 feet subsiding to 3 to 6 feet this afternoon. Waves
1 to 3 feet subsiding to 1 foot or less tonight. Waves 1 foot or
less Friday morning.

$$


Kuroski

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes