102
FZUS63 KMKX 300309
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
909 PM CST Sat Nov 29 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...

Breezy east to southeasterly winds will shift to northerly late
tonight as low pressure around 29.8 inches over northern IL
reaches Lake Huron by late Sunday morning. This will induce
northwest gales for Sunday into early Sunday evening for the
entire open lake. A Gale Warning is in effect. Winds will
gradually ease Sunday night into Monday as high pressure around
30.6 inches builds across the Great Lakes exiting to the east
Monday night.

LMZ261-362-364-366-563-565-567-868-301015-
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-
909 PM CST Sat Nov 29 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT FROM 6 AM CST SUNDAY THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...Southeast winds 15 to 25 kt becoming
northeast. Snow. Waves 7 to 10 ft occasionally to 13 ft.
.SUNDAY...North gales to 35 kt becoming northwest to 30 kt. Snow
in the morning, then chance of snow in the afternoon. Waves 6 to
9 ft occasionally to 12 ft building to 10 to 14 ft occasionally
to 18 ft.
.SUNDAY NIGHT...Northwest winds to 30 kt becoming west 10 to
20 kt. Chance of snow in the evening. Waves 8 to 11 ft
occasionally to 14 ft subsiding to 2 to 4 ft.
.MONDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...West winds to 30 kt diminishing to 15 to 25 kt.
Chance of snow. Waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft.
.TUESDAY...West winds 10 to 20 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...Southwest winds 15 to 25 kt increasing to 30 kt.
Chance of snow. Waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.
.WEDNESDAY...West winds to 30 kt becoming northwest. Snow likely.
Waves 5 to 8 ft occasionally to 10 ft.
.THURSDAY...Northwest winds 15 to 25 kt becoming west to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-301015-
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-
909 PM CST Sat Nov 29 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM 6 AM CST SUNDAY THROUGH SUNDAY
EVENING...

.REST OF TONIGHT...Southeast winds to 30 kt shifting to
northwest. Snow and slight chance of rain late this evening, then
snow and rain overnight. Waves 8 to 12 ft occasionally to 16 ft
subsiding to 6 to 9 ft occasionally to 12 ft.
.SUNDAY...Northwest gales to 35 kt. Snow likely with rain in the
morning, then chance of snow in the afternoon. Waves 8 to 11 ft
occasionally to 14 ft building to 12 to 16 ft occasionally to
21 ft.
.SUNDAY NIGHT...Northwest winds to 30 kt diminishing to 10 to
15 kt. Chance of snow in the evening. Waves 10 to 14 ft
occasionally to 18 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.MONDAY...West winds 10 to 20 kt becoming southwest. Chance of
snow in the afternoon. Waves 3 to 5 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Snow
in the evening, then chance of snow overnight. Waves 3 to 5 ft.
.TUESDAY...Northwest winds 10 to 20 kt becoming west. Chance of
snow in the morning. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.TUESDAY NIGHT...Southwest winds 10 to 20 kt increasing to 30 kt.
Chance of snow. Waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...Southwest winds to 30 kt becoming west. Chance of
snow. Waves 8 to 11 ft occasionally to 14 ft.
.THURSDAY...Northwest winds 15 to 25 kt becoming west. Waves 7 to
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally
to 10 ft.

$$

LMZ761-301015-
MAFOR 3005/
MICHIGAN NORTH...GALE WARNING IN EFFECT...12237 11847 11857 11850
11750 12740. Waves 5 to 9 feet overnight. Waves 5 to 8 feet
building to 9 to 13 feet Sunday. Waves 7 to 10 feet subsiding to
5 to 8 feet Sunday evening.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11347 11747 12757 12750
11740 11730. Waves 7 to 10 feet subsiding to 5 to 8 feet
overnight. Waves 7 to 10 feet building to 10 to 14 feet Sunday.
Waves 10 to 13 feet subsiding to 7 to 10 feet Sunday evening.

$$


Gehring

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

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