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Great Lakes Forecast
Issued by NWS
Issued by NWS
111 FZUS63 KMKX 151938 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 238 PM CDT Thu Aug 15 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 around 29.7 inches over northwest Minnesota will slowly move across northern WI Friday afternoon and to Lake Huron by late Saturday. Breezy south winds tonight will weaken for Friday, then becoming westerly Friday night for the south half and northerly 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. LMZ261-362-364-366-563-565-567-868-160330- 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- 238 PM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...South winds to 30 kt. Showers likely with a chance of thunderstorms this evening, then chance of showers and thunderstorms overnight. Patchy fog overnight. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .FRIDAY...South winds 15 to 20 kt diminishing to 10 to 15 kt. Patchy fog in the morning. Chance of showers and thunderstorms. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY NIGHT...Southwest winds 10 to 15 kt veering to north. Showers likely with a chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. Waves 1 to 3 ft. .SATURDAY...North winds 10 to 20 kt. Chance of showers and thunderstorms in the morning, then chance of showers in the afternoon. Waves 1 to 3 ft. .SATURDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft. .SUNDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft. .SUNDAY NIGHT...North winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 2 to 4 ft. .MONDAY...North winds 10 to 20 kt. Waves 2 to 4 ft. .TUESDAY...Northeast winds 10 to 15 kt backing to west 10 to 20 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-160330- 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- 238 PM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...Southeast winds to 30 kt becoming south 15 to 25 kt. Chance of showers and thunderstorms. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .FRIDAY...South winds 10 to 20 kt diminishing to 10 to 15 kt. Patchy fog in the morning. Slight chance of showers and thunderstorms in the morning, then chance of showers and thunderstorms in the afternoon. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Showers likely with a chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. Waves 2 to 4 ft. .SATURDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. .SATURDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft. .SUNDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY NIGHT...North winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. .TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ761-160330- MAFOR 1522/ MICHIGAN NORTH 12446 11340 11346 12430 11420 11410. A chance of thunderstorms. Waves 5 to 8 feet subsiding to 3 to 6 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet Friday. MICHIGAN SOUTH 11346 11340 11440 12430 11520 12510. A chance of thunderstorms tonight. Waves 5 to 8 feet subsiding to 3 to 5 feet tonight. Waves 3 to 5 feet subsiding to 1 to 3 feet Friday. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes