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Great Lakes Forecast
Issued by NWS
Issued by NWS
881 FZUS63 KMKX 150747 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 247 AM 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... Departing high pressure around 30.1 inches moving across the eastern Great Lakes and incoming low pressure around 29.7 inches tracking into MN will bring increasing southeasterly winds to Lake Michigan today. Looking at gusts up to around 25-30 knots through the afternoon/evening along with chances of thunderstorms as this system tracks into the Lake Superior region. Low pressure then looks to linger over the Upper Great Lakes through Friday with more southwesterly winds before turning northerly on the backside of the low for the weekend. High pressure looks to build into the region for the start of next week bringing lighter winds across Lake Michigan. LMZ261-362-364-366-563-565-567-868-151530- 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- 247 AM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...Southeast winds 10 to 20 kt becoming south to 30 kt. Showers likely with slight chance of thunderstorms this afternoon. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. .TONIGHT...Southeast winds to 30 kt becoming south 15 to 25 kt. Showers likely with a chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. 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. Chance of showers and thunderstorms. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY NIGHT...Southwest winds 10 to 20 kt veering to north. Chance of showers and thunderstorms. Waves 1 to 3 ft. .SATURDAY...North winds 10 to 20 kt. Chance of showers. 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. .MONDAY...North winds 10 to 20 kt. Waves 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-151530- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 247 AM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Southeast winds 15 to 25 kt increasing to 30 kt. Chance of showers this morning, then showers likely with a chance of thunderstorms this afternoon. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. .TONIGHT...Southeast winds to 30 kt becoming south 15 to 25 kt. Chance of showers and thunderstorms. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .FRIDAY...Southwest winds 10 to 20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Chance of showers. Waves 2 to 4 ft. .SATURDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. .SATURDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft. .SUNDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. $$ LMZ761-151530- MAFOR 1510/ MICHIGAN NORTH 11320 11330 13446 12346 11330. A chance of thunderstorms tonight. Waves 1 to 3 feet building to 5 to 8 feet today. Waves 5 to 8 feet subsiding to 3 to 6 feet tonight. MICHIGAN SOUTH 11320 11330 13346 11340 11440 11430. A chance of thunderstorms this afternoon and tonight. Waves 1 to 2 feet building to 5 to 8 feet today. Waves 5 to 8 feet subsiding to 3 to 5 feet tonight. $$ Wagner Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes