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Great Lakes Forecast
Issued by NWS
Issued by NWS
467 FZUS63 KMKX 161919 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 219 PM CDT Fri Aug 16 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 near 29.7 inches over northwest Wisconsin will slowly move across northern Wisconsin this afternoon and tonight, and to southern Lake Huron by the end of Saturday. Modest south winds today will become westerly late this evening for the south half, and variable winds for the north half. The winds will then transition to breezy north to northwest winds for the weekend. The winds will gradually weaken early next week as high pressure arrives over the lake by Tuesday. Scattered thunderstorms can be expected over the lake today into Saturday evening. LMZ261-362-364-366-563-565-567-868-170345- 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- 219 PM CDT Fri Aug 16 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...South winds 10 to 15 kt becoming southeast 5 to 10 kt. Chance of showers and thunderstorms. Patchy fog overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft. .SATURDAY...North winds 10 to 15 kt increasing to 10 to 20 kt. Chance of showers and thunderstorms. Waves 2 to 4 ft. .SATURDAY NIGHT...North winds 15 to 25 kt. Waves 3 to 5 ft. .SUNDAY...North winds 15 to 25 kt increasing to 30 kt. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY NIGHT...North winds to 30 kt diminishing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...North winds 15 to 25 kt. Waves 3 to 5 ft. .MONDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt. Waves 2 to 4 ft. .TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 3 ft. .WEDNESDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-170345- 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- 219 PM CDT Fri Aug 16 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...Southwest winds 10 to 15 kt becoming west 10 to 20 kt. Chance of showers and thunderstorms. Waves 2 to 4 ft. .SATURDAY...West winds 10 to 20 kt becoming northwest 15 to 25 kt. Chance of showers and thunderstorms. Waves 3 to 5 ft. .SATURDAY NIGHT...Northwest winds 15 to 25 kt becoming north. Chance of showers in the evening. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...North winds 15 to 25 kt increasing to 30 kt. Waves 6 to 9 ft occasionally to 12 ft. .SUNDAY NIGHT...North winds to 30 kt diminishing to 15 to 25 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .MONDAY...North winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt. Waves 2 to 4 ft. .WEDNESDAY...South winds 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ761-170345- MAFOR 1622/ MICHIGAN NORTH 13410 11300 12810 12820. A chance of showers and thunderstorms. Waves 1 to 3 feet. MICHIGAN SOUTH 11410 11516 11520 13620 12720. A chance of thunderstorms. Waves 1 to 3 feet tonight. Waves 2 to 4 feet Saturday. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes