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Great Lakes Forecast
Issued by NWS
Issued by NWS
890 FZUS63 KMKX 280749 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 249 AM CDT Fri Jun 28 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... High pressure around 30.0 inches continues to drift east tonight. Expect southwesterly winds to gradually increase and turn more southerly through this morning as low pressure around 29.3 inches develops across the Central Plains and lifts into the Upper Midwest through this evening. Will see increased potential for showers and thunderstorm across Lake Michigan through tonight. This low will gradually slide east-northeast into Ontario overnight into Saturday and will drag a cold front across the Lake for the start of the weekend. Behind the front expect winds to turn more northerly through Saturday afternoon and evening. Then high pressure begins to build across the Upper Great Lakes for Sunday bringing weaken winds into the start of next week before another storm system develops and brings stronger winds for Lake Michigan for mid-next week. LMZ261-362-364-366-563-565-567-868-281530- 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- 249 AM CDT Fri Jun 28 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...South winds 15 to 25 kt increasing to 30 kt. Slight chance of showers this morning, then chance of showers this afternoon. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. .TONIGHT...South winds to 30 kt becoming southwest. Showers and slight chance of thunderstorms in the evening, then showers with a chance of thunderstorms overnight. Waves 4 to 7 ft occasionally to 9 ft. .SATURDAY...Southwest winds 15 to 25 kt becoming northwest. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .SATURDAY NIGHT...North winds 15 to 25 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. .SUNDAY...North winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast 5 to 10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .MONDAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 2 ft. .TUESDAY...South winds to 30 kt. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-281530- 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- 249 AM CDT Fri Jun 28 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Southeast winds 15 to 25 kt becoming south. Slight chance of showers this morning, then chance of showers this afternoon. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .TONIGHT...South winds 15 to 25 kt diminishing to 10 to 20 kt. Chance of showers and slight chance of thunderstorms in the evening, then showers likely with a chance of thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .SATURDAY...Southwest winds 10 to 20 kt becoming west. Chance of showers and thunderstorms in the morning. Waves 3 to 5 ft subsiding to 1 to 3 ft. .SATURDAY NIGHT...Northwest winds 15 to 25 kt becoming north. Waves 2 to 4 ft building to 4 to 7 ft occasionally to 9 ft. .SUNDAY...North winds 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft. .SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast 10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .MONDAY...East winds 10 to 15 kt becoming southeast 10 to 20 kt. Waves 1 to 3 ft. .TUESDAY...South winds to 30 kt. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft. $$ LMZ761-281530- MAFOR 2810/ MICHIGAN NORTH 11420 12430 11440 13446 11546. A chance of thunderstorms overnight. Waves 1 foot or less building to 3 to 6 feet today. Waves 4 to 7 feet subsiding to 3 to 6 feet tonight. MICHIGAN SOUTH 11320 14430 11430 12436. A chance of thunderstorms overnight. Waves 1 to 2 feet building to 3 to 6 feet today. Waves 3 to 6 feet subsiding to 2 to 4 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