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National Weather Service Marine Forecast FZUS63 KMKX

FZUS63 KMKX 241407
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
907 AM CDT Sun May 24 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

A weak trough of low pressure continues to move northeast into Michigan this morning with plenty of rain associated with it with weak high pressure quickly following it. Winds will mainly remain light southerly winds, but light and variable winds may occur at times over the far southern basin of the lake. South winds will then continue tonight, becoming a bit stronger for Monday and Tuesday as high pressure moves to the lower Great Lakes.

Some fog across parts of the lake this morning that could linger into tonight as mild and moist air flows over the cooler waters of the lake. However, widespread dense fog is not expected.

A cold front may shift southward across the lake toward the middle of the week, as high pressure around 30.3 inches builds into James Bay.

LMZ261-362-364-366-563-565-567-868-242115
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
907 AM CDT Sun May 24 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

REST OF TODAY
South winds 10 to 15 kt. Slight chance of rain showers late this morning. Patchy fog. Waves 1 to 2 ft.

TONIGHT
South winds 10 to 15 kt becoming southwest. Patchy fog. Waves 1 to 2 ft.

MONDAY
Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft.

MONDAY NIGHT
South winds 10 to 20 kt becoming southwest. Waves 3 to 5 ft.

TUESDAY
Southwest winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft.

TUESDAY NIGHT
Southwest winds 10 to 20 kt becoming west 5 to 10 kt. Waves 2 to 4 ft.

WEDNESDAY
Northeast winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 2 ft building to 2 to 4 ft.

THURSDAY
Northeast winds 10 to 15 kt becoming north 15 to 25 kt. Waves 1 to 3 ft building to 2 to 4 ft.

LMZ080-669-671-673-675-777-779-870-872-874-876-878-242115
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
907 AM CDT Sun May 24 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

REST OF TODAY
Southwest winds 5 to 10 kt becoming southeast. Patchy fog. Rain showers and slight chance of thunderstorms late this morning, then chance of rain showers this afternoon. Waves 1 to 2 ft.

TONIGHT
South winds 10 to 15 kt. Patchy fog. Waves 1 to 2 ft.

MONDAY
South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft.

MONDAY NIGHT
South winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 2 to 4 ft.

TUESDAY
South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 2 to 4 ft.

TUESDAY NIGHT
Southeast winds 10 to 15 kt becoming south. Waves 1 to 3 ft subsiding to 1 to 2 ft.

WEDNESDAY
Northeast winds 5 to 10 kt becoming north 10 to 20 kt. Waves 1 ft or less building to 2 to 4 ft.

THURSDAY
Northeast winds 10 to 15 kt becoming north 15 to 25 kt. Waves 3 to 5 ft.

LMZ761-242115
MAFOR 2416/ MICHIGAN NORTH 11510 14410 12510 11410. Waves 2 feet or less.

MICHIGAN SOUTH 11500 11400 11310 13410 11400 11410. A chance of showers this afternoon. Waves 2 feet or less.

Kuroski

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

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