919
FZUS63 KMKX 241935
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
235 PM CDT Sat May 24 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...

High pressure of 30.4 inches centered to the north of Lake
Superior will continue to gradually build southward into the
Great Lakes region through this weekend. Generally light
northerly winds are expected through the weekend as the high
moves overhead. East to northeast winds are expected to pick up
a little early next week as the high shifts eastward ahead of an
approaching low pressure system.

LMZ261-362-364-366-563-565-567-868-250315-
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-
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-
235 PM CDT Sat May 24 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...West winds 10 to 15 kt becoming north. Waves 1 ft or
less.
.SUNDAY...Northwest winds 10 to 15 kt. Waves 1 to 2 ft.
.SUNDAY NIGHT...Northwest winds 10 to 15 kt becoming north. Waves
1 ft or less.
.MONDAY...North winds 5 to 10 kt increasing to 10 to 15 kt. Waves
1 to 2 ft.
.MONDAY NIGHT...Northeast winds 10 to 15 kt becoming east 5 to
10 kt. Waves 1 to 2 ft.
.TUESDAY...East winds 5 to 10 kt becoming northeast 10 to 20 kt
in the afternoon. Waves 1 to 2 ft.
.TUESDAY NIGHT...East winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt. Chance of showers.
Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250315-
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-
235 PM CDT Sat May 24 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
Waves 1 to 2 ft.
.SUNDAY...Northeast winds 5 to 10 kt becoming north 10 to 20 kt.
Waves 1 to 2 ft.
.SUNDAY NIGHT...North winds 10 to 15 kt becoming northeast. Waves
1 to 2 ft.
.MONDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to
15 kt. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 2 to 4 ft.
.TUESDAY NIGHT...Northeast winds 10 to 20 kt becoming east.
Chance of showers. Waves 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt. Chance of showers.
Waves 2 to 4 ft.
.THURSDAY...Northwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.

$$

LMZ761-250315-
MAFOR 2422/
MICHIGAN NORTH 11610 11710 11700 12810 13710. Waves 1 foot or
less.

MICHIGAN SOUTH 12120 11110 13100 12810. Waves 2 feet or less.

$$


DDV

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

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