National Weather Service Marine Forecast FZUS63 KMKX
FZUS63 KMKX 080855
GLFLM
OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
255 AM CST Sun Feb 8 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
High pressure around 30.4 inches will continue to slide southeastward into the eastern Great Lakes through today, leading to modest south to southeast winds. Winds will become south to southwest Monday as low pressure around 29.7 inches moves across Ontario. Southwest winds remain through Monday night as high pressure around 30.5 inches builds into the northern Plains, before a trailing cold front from the Ontario low pushes across the lake Tuesday morning. Modest west to northwest winds are expected behind the front and will persist into the middle of the week.
LMZ261-362-364-366-563-565-567-868-081615
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
255 AM CST Sun Feb 8 2026
SHEBOYGAN WI TO PENTWATER MI NORTH...
TODAY
Southeast winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 2 to 4 ft.
TONIGHT
South winds 10 to 20 kt. Waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft.
MONDAY
South winds 15 to 25 kt. Waves 5 to 8 ft occasionally
to 10 ft.
MONDAY NIGHT
South winds 10 to 20 kt becoming southwest.
Chance of snow. Waves 4 to 7 ft occasionally to 9 ft subsiding to
4 to 6 ft occasionally to 8 ft.
TUESDAY
West winds 10 to 20 kt becoming northwest. Waves 3 to
5 ft.
TUESDAY NIGHT
Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
WEDNESDAY
Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
THURSDAY
North winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 1 to 3 ft subsiding to 1 to 2 ft.
LMZ080-669-671-673-675-777-779-870-872-874-876-878-081615
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
255 AM CST Sun Feb 8 2026
SHEBOYGAN WI TO PENTWATER MI SOUTH...
TODAY
Southeast winds 10 to 20 kt. Slight chance of snow this
morning. Waves 2 to 4 ft.
TONIGHT
Southeast winds 10 to 20 kt becoming south. Waves 4 to
6 ft occasionally to 8 ft.
MONDAY
South winds 10 to 20 kt. Waves 4 to 6 ft occasionally
to 8 ft.
MONDAY NIGHT
South winds 10 to 20 kt becoming southwest. Waves
4 to 6 ft occasionally to 8 ft.
TUESDAY
West winds 10 to 20 kt becoming northwest. Waves 4 to
6 ft occasionally to 8 ft.
TUESDAY NIGHT
Northwest winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft.
WEDNESDAY
Northwest winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft.
THURSDAY
Northeast winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
LMZ761-081615
MAFOR 0811/
MICHIGAN NORTH 11310 13320 14420. Waves 1 to 3 feet building to 2
to 4 feet today. Waves 2 to 4 feet building to 3 to 6 feet
tonight. Wave heights are for ice free areas.
MICHIGAN SOUTH 11310 14320 11320 12420. A chance of snow early this morning. Waves 1 to 3 feet building to 2 to 4 feet today. Waves 2 to 4 feet building to 3 to 6 feet tonight.
MH
Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable
Graphical marine forecasts are available online at: weather.gov/greatlakes



