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National Weather Service Marine Forecast FZUS63 KMKX

FZUS63 KMKX 021937
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
Issued by National Weather Service Green Bay WI
237 PM CDT Thu May 2 2024

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

Low pressure of 29.7 inches over northern Iowa will will weaken to 29.8 inches as it lifts northeast to the Wisconsin/Upper Peninsula border by 1 am tonight and northern Lake Superior by 7 am Friday. As the low passes west of Lake Michigan, winds will be veering from the east this afternoon to the south tonight, then to the west on Friday morning. Areas of fog will be possible from late evening into Friday morning prior to winds shifting to the west.

Lighter winds are expected Friday under high pressure of 30.0 inches. A cold front 29.9 inches will pass across Lake Michigan on Saturday afternoon and evening before high pressure 30.0 inches moves from Minnesota on Saturday night to northern Lake Michigan on Sunday night. Winds will then likely be 15 knots or less through the upcoming weekend.

LMZ261-362-364-366-563-565-567-868-030315
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
237 PM CDT Thu May 2 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

TONIGHT
East winds 15 to 25 kt veering to south 10 to 20 kt. Chance of rain showers and slight chance of thunderstorms. Patchy fog overnight. Waves 2 to 4 ft.

FRIDAY
Southwest winds 10 to 20 kt becoming south 10 to 15 kt. Slight chance of rain showers in the morning. Waves 1 to 3 ft.

FRIDAY NIGHT
South winds 10 to 15 kt becoming southeast 5 to 10 kt. Waves 1 to 2 ft.

SATURDAY
East winds 10 to 15 kt becoming northeast. Waves 1 to 2 ft.

SATURDAY NIGHT
North winds 10 to 15 kt diminishing to 5 to 10 kt. Chance of rain showers. Waves 1 to 2 ft.

SUNDAY
North winds 10 to 15 kt becoming northwest. Waves 1 to 2 ft.

SUNDAY NIGHT
East winds 10 to 15 kt. Waves 1 to 2 ft.

MONDAY
East winds 10 to 15 kt becoming northeast 10 to 20 kt. Waves 1 to 3 ft.

TUESDAY
Southeast winds 15 to 25 kt. Chance of showers. Waves 3 to 5 ft.

LMZ080-669-671-673-675-777-779-870-872-874-876-878-030315
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
237 PM CDT Thu May 2 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

TONIGHT
Southeast winds 10 to 20 kt becoming southwest 10 to 15 kt. Chance of rain showers and thunderstorms this evening, then rain showers likely with slight chance of thunderstorms overnight. Patchy fog overnight. Waves 2 to 4 ft.

FRIDAY
West winds 10 to 15 kt veering to northeast. Patchy fog in the morning. Chance of showers and slight chance of thunderstorms in the morning. Waves 1 to 3 ft.

FRIDAY NIGHT
Northeast winds 10 to 15 kt becoming east 5 to 10 kt. Waves 1 to 2 ft.

SATURDAY
East winds 5 to 10 kt becoming northeast 10 to 15 kt. Waves 1 to 3 ft.

SATURDAY NIGHT
North winds 5 to 10 kt becoming northwest 10 to 15 kt. Chance of showers. Waves 1 to 3 ft.

SUNDAY
North winds 10 to 20 kt. Waves 1 to 3 ft.

SUNDAY NIGHT
Northeast winds 10 to 15 kt. Waves 1 to 3 ft.

MONDAY
East winds 10 to 20 kt. Waves 1 to 3 ft.

TUESDAY
Southeast winds 15 to 25 kt becoming south. Showers likely. Waves 3 to 5 ft.

LMZ761-030315
MAFOR 0222/ MICHIGAN NORTH 11130 11230 11330 11420 11510 11610 11510 11410. A chance of showers tonight and Friday morning. Waves 2 to 4 ft building to 3 to 5 ft, then subsiding to 2 to 4 ft tonight. Waves 2 to 4 ft Friday.

MICHIGAN SOUTH 11320 11420 11410 11416 11610 11710 12810. A chance of thunderstorms this evening. Waves 2 to 4 ft tonight. Waves 1 to 3 ft Friday.

MPC

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

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