712
FZUS63 KMKX 010850
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
250 AM CST Thu Jan 1 2026

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...

Northwest winds gusting up to 30 knots are expected through this
evening behind the front, with winds gradually easing overnight
into Thursday as high pressure builds in from the northwest.
Moderate freezing spray is expected to develop from north to south
this afternoon into this evening and continue into Thursday
morning as a colder airmass arrives behind the cold front. West to
northwest winds around 10 to 20 knots will then prevail most of
the time through the end of the week under persistent northwest
flow aloft.

LMZ261-362-364-366-563-565-567-868-011630-
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-
250 AM CST Thu Jan 1 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northwest winds to 30 kt becoming west. Freezing spray.
Slight chance of snow this afternoon. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.TONIGHT...West winds 15 to 25 kt becoming northwest. Slight
chance of snow in the evening. Freezing spray. Waves 4 to 7 ft
occasionally to 9 ft.
.FRIDAY...Northwest winds 15 to 25 kt becoming west. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.FRIDAY NIGHT...Northwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 3 to 5 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming west. Waves 1 to
3 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY...Southwest winds 10 to 20 kt. Chance of snow. Waves 4 to
7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-011630-
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-
250 AM CST Thu Jan 1 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northwest winds 10 to 20 kt becoming west. Freezing
spray. Chance of snow this afternoon. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.TONIGHT...West winds 15 to 25 kt becoming northwest 10 to 20 kt.
Chance of snow in the evening. Freezing spray. Waves 4 to 7 ft
occasionally to 9 ft.
.FRIDAY...Northwest winds 10 to 20 kt. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 3 to 5 ft.
.SATURDAY...Northwest winds 10 to 15 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...Northwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 15 kt becoming west 5 to 10 kt.
Waves 2 to 4 ft.
.MONDAY...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.

$$

LMZ761-011630-
MAFOR 0111/
MICHIGAN NORTH 11740 11730 12640 13630 11730. Waves 4 to 7 feet
subsiding to 3 to 6 feet today. Waves 3 to 6 feet tonight.

MICHIGAN SOUTH 12720 13620 11630 11730 11720. A chance of snow
this afternoon and evening. Waves 5 to 8 feet subsiding to 3 to 6
feet today. Waves 3 to 6 feet building to 4 to 7 feet tonight.

$$


Wagner

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

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