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Great Lakes Forecast
Issued by NWS
Issued by NWS
622 FZUS63 KMKX 160214 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 914 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... No major changes to the forecast since the previous discussion. 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 will continue tonight and 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- 914 PM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...Southeast winds 10 to 20 kt becoming south to 30 kt. Chance of showers this afternoon. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. .TONIGHT...South winds to 30 kt. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. Patchy fog overnight. Waves 6 to 9 ft occasionally to 12 ft. .FRIDAY...South winds 15 to 25 kt diminishing to 10 to 15 kt. Patchy fog in the morning. Chance of showers and thunderstorms. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 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 3 to 5 ft. .SUNDAY...North winds 15 to 25 kt increasing to 30 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. $$ 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- 914 PM CDT Thu Aug 15 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...South winds to 30 kt becoming southeast. Scattered showers this morning, then 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. Chance of showers and slight chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. Waves 6 to 9 ft occasionally to 12 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. Chance of showers and thunderstorms in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 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 2 to 4 ft. .SATURDAY NIGHT...Northwest winds 10 to 20 kt becoming north. Waves 3 to 5 ft. .SUNDAY...North winds 15 to 25 kt increasing to 30 kt. Waves 5 to 8 ft occasionally to 10 ft. .MONDAY...North winds 10 to 20 kt increasing to 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. $$ LMZ761-160330- MAFOR 1510/ MICHIGAN NORTH 11320 11330 11330 19336 13446 12340. A chance of thunderstorms overnight. Waves 1 to 3 feet building to 4 to 7 feet today. Waves 5 to 8 feet tonight. MICHIGAN SOUTH 11320 11440 19446 13346 11340 11440 11430. A chance of thunderstorms overnight. Waves 1 to 2 feet building to 4 to 7 feet today. Waves 5 to 8 feet subsiding to 3 to 6 feet tonight. $$ CMiller Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes