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National Weather Service Marine Forecast FZUS63 KMKX

FZUS63 KMKX 040257
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
857 PM CST Sat Dec 3 2022

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

As high pressure moves east across the Ohio River Valley and a
29.6 inch low passes to the north of Lake Superior, expect
southwest winds to steadily increase late tonight through Sunday
night. Southwest gales are expected over the northern portions of
the lake Sunday night, and a Gale Warning is in effect for that
period.

Lighter winds are expected Monday, with a passing cold front
shifting winds to the northwest for Monday night. Winds should
generally be light to moderate into the middle of next week.

LMZ261-362-364-366-563-565-567-868-041015-
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-
857 PM CST Sat Dec 3 2022

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WARNING IN EFFECT FROM SUNDAY EVENING THROUGH LATE SUNDAY
NIGHT...

REST OF TONIGHT
West winds 15 to 25 kt increasing to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft.

SUNDAY
Southwest winds to 30 kt. Waves 6 to 9 ft occasionally
to 12 ft.

SUNDAY NIGHT
Southwest gales to 40 kt diminishing to 30 kt.
Waves 10 to 14 ft occasionally to 18 ft subsiding to 8 to 11 ft
occasionally to 14 ft.

MONDAY
Southwest winds to 30 kt becoming west 15 to 25 kt.
Chance of rain. Waves 5 to 8 ft occasionally to 10 ft subsiding
to 4 to 6 ft occasionally to 8 ft.

MONDAY NIGHT
Northwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 3 to 5 ft.

TUESDAY
North winds 10 to 20 kt becoming east. Waves 2 to
4 ft.

TUESDAY NIGHT
Southeast winds 10 to 20 kt veering to southwest
10 to 15 kt. Chance of rain and snow. Waves 1 to 2 ft.

WEDNESDAY
Northwest winds 10 to 15 kt. Chance of snow. Waves
1 to 2 ft.

THURSDAY
Northeast winds 10 to 15 kt. Waves 1 to 2 ft. 



LMZ080-669-671-673-675-777-779-870-872-874-876-878-041015-
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-
857 PM CST Sat Dec 3 2022

SHEBOYGAN WI TO PENTWATER MI SOUTH...

REST OF TONIGHT
West winds 10 to 20 kt increasing to 15 to
25 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.

SUNDAY
Southwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft.

SUNDAY NIGHT
Southwest winds to 30 kt. Waves 6 to 9 ft
occasionally to 12 ft.

MONDAY
Southwest winds 15 to 25 kt. Waves 4 to 7 ft
occasionally to 9 ft.

MONDAY NIGHT
Northwest winds 10 to 20 kt becoming north. Waves
3 to 5 ft.

TUESDAY
Northeast winds 10 to 20 kt becoming east. Waves 2 to
4 ft.

TUESDAY NIGHT
East winds 10 to 15 kt becoming northeast 5 to
10 kt. Chance of rain. Waves 1 to 3 ft.

WEDNESDAY
North winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 3 ft.

THURSDAY
Northeast winds 10 to 15 kt. Waves 1 to 3 ft. 


LMZ761-041015-
MAFOR 0405/

MICHIGAN NORTH...GALE WARNING IN EFFECT...11630 11640 11540 11640
12540 12550. Waves 4 to 7 ft occasionally to 9 ft building to 5
to 8 ft occasionally to 10 ft overnight. Waves 6 to 9 ft
occasionally to 12 ft Sunday. Waves 10 to 14 ft occasionally to
18 ft Sunday evening.

MICHIGAN SOUTH 11620 11630 11530 11540 12530 12540. Waves 4 to 6
ft occasionally to 8 ft overnight. Waves 4 to 7 ft occasionally
to 9 ft Sunday. Waves 6 to 9 ft occasionally to 12 ft Sunday
evening.



Anderson

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

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