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Great Lakes Forecast
Issued by NWS
Issued by NWS
322 FZUS63 KMKX 101353 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 853 AM CDT Sat Aug 10 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 of 30.2 inches will build across the Central Plains in the wake of low pressure of 29.7 inches moving eastward across Ontario/Quebec today. The cooler airmass moving over the warmer lake associated with the low allows for marginal conditions for showers and waterspouts across the northern third of Lake Michigan today. Areas closer to the low pressure have more potential to see shower and waterspout development. Breezy winds will continue today due to the tighter pressure gradient associated with the low. Winds will be northwesterly with gusts around 25 knots expected. Winds will begin to decrease overnight into Sunday as the high pressure builds into the Great Lakes region. Light winds and dry conditions are expected to remain in place through midweek. LMZ261-362-364-366-563-565-567-868-102130- 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- 853 AM CDT Sat Aug 10 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...West winds to 30 kt. Slight chance of waterspouts. Chance of showers through mid morning, then chance of showers and slight chance of thunderstorms this afternoon. Waves 4 to 6 ft occasionally to 8 ft. .TONIGHT...West winds 15 to 25 kt becoming northwest 10 to 20 kt. Chance of showers and slight chance of thunderstorms in the evening, then slight chance of showers overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .SUNDAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to 4 ft. .SUNDAY NIGHT...West winds 10 to 20 kt becoming northwest 10 to 15 kt. Waves 1 to 3 ft. .MONDAY...Northwest winds 5 to 10 kt becoming southwest 10 to 15 kt. Waves 1 to 2 ft. .MONDAY NIGHT...Southwest winds 5 to 10 kt. Waves 1 ft or less. .TUESDAY...South winds 5 to 10 kt becoming southwest. Waves nearly calm. .WEDNESDAY...South winds 5 to 10 kt. Waves 1 ft or less. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-102130- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 853 AM CDT Sat Aug 10 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...West winds 15 to 25 kt increasing to 30 kt. Waves 4 to 7 ft occasionally to 9 ft. .TONIGHT...West winds 15 to 25 kt becoming northwest 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...Northwest winds 10 to 20 kt becoming west. Waves 3 to 5 ft. .SUNDAY NIGHT...West winds 10 to 15 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .MONDAY...West winds 5 to 10 kt. Waves 1 to 2 ft. .MONDAY NIGHT...Southwest winds 5 to 10 kt. Waves 1 ft or less. .TUESDAY...West winds 5 to 10 kt becoming south. Waves nearly calm. .WEDNESDAY...Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ761-102130- MAFOR 1016/ MICHIGAN NORTH 13640 13730 12720. A chance of showers this afternoon and evening. Waves 3 to 6 feet this afternoon. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet Sunday morning. MICHIGAN SOUTH 14630 11730 12720 11620. Waves 3 to 6 feet this afternoon and tonight. Waves 2 to 4 feet Sunday morning. $$ Falkinham Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes