064
FZUS63 KMKX 032051
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
251 PM CST Wed Dec 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...

A cold front continues to progress across Lake Michigan this
afternoon, currently draped across the far southern portions of
the open waters. Expect gusty northwest winds behind this front,
with a few gusts up to gale force possible tonight in far
northern portions of the open waters. These gusts are not expected
to be widespread or consistent. Very cold air combined with gusty
conditions will result in periods of moderate freezing spray
tonight into Thursday morning.

Winds shift southwesterly again Thursday as high pressure around
30.4 inches builds over the Ohio Valley. A weak low pressure
system around 29.7 inches will move west to east across southern
Ontario Thursday night through Friday, increasing southwesterly
winds to gales across the northern third of the open waters.
Elsewhere, expect gusts around 30 kt. Moderate freezing spray is
expected once again during this time frame. A Gale Warning is in
effect from Thursday night into Friday morning. A cold front will
drape across the open waters Friday into Friday night, bringing
lighter westerly winds.

LMZ261-362-364-366-563-565-040430-
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-
251 PM CST Wed Dec 3 2025

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY
MORNING...

.TONIGHT...Northwest winds to 30 kt. Freezing spray. Isolated
snow showers. Waves 4 to 7 ft occasionally to 9 ft building to
6 to 9 ft occasionally to 12 ft.
.THURSDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt
late in the morning, then becoming west 10 to 20 kt early in the
afternoon becoming southwest late. Freezing spray in the morning.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 1 to 3 ft.
.THURSDAY NIGHT...Southwest gales to 35 kt increasing to gales to
40 kt. Freezing spray. Chance of snow overnight. Waves 4 to 6 ft
occasionally to 8 ft building to 10 to 14 ft occasionally to
18 ft.
.FRIDAY...Southwest gales to 40 kt diminishing to 30 kt in the
afternoon. Chance of snow. Waves 10 to 14 ft occasionally to
18 ft subsiding to 6 to 9 ft occasionally to 12 ft.
.FRIDAY NIGHT...Southwest winds 15 to 25 kt becoming west. Chance
of snow in the evening, then chance of snow showers overnight.
Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Northwest winds 15 to 25 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt. Chance of snow
showers. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.MONDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt.
Chance of snow showers. Waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.

$$

LMZ567-868-040430-
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-
251 PM CST Wed Dec 3 2025

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

.TONIGHT...Northwest winds 15 to 25 kt. Freezing spray overnight.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...Northwest winds 15 to 25 kt diminishing to 10 to
20 kt late in the morning, then becoming west 5 to 10 kt early in
the afternoon becoming southwest 10 to 15 kt late. Freezing spray
in the morning. Waves 4 to 6 ft occasionally to 8 ft subsiding to
1 to 3 ft.
.THURSDAY NIGHT...Southwest winds 15 to 25 kt increasing to gales
to 35 kt, then diminishing to 30 kt late. Freezing spray
overnight. Waves 3 to 5 ft building to 10 to 14 ft occasionally
to 18 ft.
.FRIDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow in the afternoon. Waves 10 to 14 ft occasionally
to 18 ft subsiding to 6 to 9 ft occasionally to 12 ft.
.FRIDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Snow
likely in the evening, then chance of snow showers overnight.
Waves 4 to 7 ft occasionally to 9 ft.
.SATURDAY...Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...Northwest winds 10 to 15 kt becoming north
10 to 20 kt. Chance of snow showers. Waves 2 to 4 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.MONDAY...Southwest winds 10 to 20 kt. Chance of snow showers.
Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-040430-
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-
251 PM CST Wed Dec 3 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northwest winds 15 to 25 kt. Freezing spray overnight.
Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY...Northwest winds 10 to 20 kt diminishing to 10 to
15 kt late in the morning, then diminishing to 5 to 10 kt early
in the afternoon becoming southwest 10 to 15 kt late. Waves 4 to
7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.THURSDAY NIGHT...Southwest winds 15 to 25 kt increasing to
30 kt. Freezing spray overnight. Waves 3 to 5 ft building to 8 to
12 ft occasionally to 16 ft.
.FRIDAY...Southwest winds to 30 kt. Waves 8 to 12 ft occasionally
to 16 ft subsiding to 7 to 10 ft occasionally to 13 ft.
.FRIDAY NIGHT...Southwest winds 15 to 25 kt becoming west. Chance
of snow in the evening, then chance of snow showers overnight.
Waves 5 to 8 ft occasionally to 10 ft.
.SATURDAY...West winds 10 to 20 kt becoming northwest. Waves 4 to
7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming north.
Chance of snow showers. Waves 3 to 5 ft.
.SUNDAY...North winds 10 to 20 kt. Waves 4 to 7 ft occasionally
to 9 ft.
.MONDAY...South winds 10 to 20 kt becoming southwest 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ761-040430-
MAFOR 0323/
MICHIGAN NORTH 14740 11740 11730 11620 11510. Waves 3 to 6 feet
building to 5 to 8 feet tonight. Waves 5 to 8 feet subsiding to 1
to 3 feet Thursday.

MICHIGAN SOUTH 11730 19737 13730 12720 11710 11610. Waves 3 to 6
feet building to 4 to 7 feet tonight. Waves 4 to 7 feet subsiding
to 1 to 3 feet Thursday.

$$


MH

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

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