Great Lakes Forecast
Issued by NWS
Issued by NWS
859 FZUS63 KMKX 091954 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 254 PM CDT Thu May 9 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 of 29.6 over the Ohio River Valley will move eastward this evening and tonight, while high pressure of 30.1 inches drops southward through Minnesota into Iowa. Breezy northerly winds this afternoon will gradually become lighter this evening into tonight, with the lighter winds hanging on into Friday morning. Low pressure of 29.7 inches will then move southeastward across Lake Michigan later Friday into Friday night. Southerly winds will become breezy ahead of the low by Friday afternoon, with breezy northwest winds developing Friday night into Saturday behind the low. Breezy southerly winds are expected once again on Sunday ahead of the next approaching low pressure system. LMZ261-362-364-366-563-565-567-868-100330- 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- 254 PM CDT Thu May 9 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY...Northwest winds 5 to 10 kt backing to southwest. Waves 1 to 2 ft. .FRIDAY NIGHT...South winds 10 to 15 kt veering to north. Chance of rain showers. Waves 1 to 3 ft. .SATURDAY...North winds 10 to 15 kt becoming northwest 10 to 20 kt. Waves 1 to 3 ft. .SATURDAY NIGHT...West winds 5 to 10 kt becoming southwest. Waves 1 to 2 ft. .SUNDAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Chance of rain showers in the afternoon. Waves 1 to 3 ft building to 3 to 5 ft. .SUNDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt. Chance of showers and thunderstorms. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...Northwest winds 10 to 20 kt becoming northeast. Waves 2 to 4 ft. .TUESDAY...Northeast winds 10 to 20 kt becoming north. Waves 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-100330- 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- 254 PM CDT Thu May 9 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...North winds 15 to 25 kt diminishing to 10 to 15 kt. Chance of rain showers this evening, then slight chance of rain showers overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft. .FRIDAY...North winds 10 to 15 kt backing to south. Waves 1 to 3 ft. .FRIDAY NIGHT...South winds 10 to 15 kt veering to northwest 10 to 20 kt. Chance of showers. Waves 1 to 3 ft. .SATURDAY...Northwest winds 10 to 20 kt becoming north. Waves 3 to 5 ft. .SATURDAY NIGHT...West winds 10 to 15 kt becoming southwest 5 to 10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft. .SUNDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .SUNDAY NIGHT...Southwest winds 15 to 25 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...Southwest winds 10 to 20 kt becoming south. Chance of showers. Waves 2 to 4 ft. .TUESDAY...Northeast winds 10 to 20 kt becoming north. Chance of showers. Waves 2 to 4 ft. $$ LMZ761-100330- MAFOR 0922/ MICHIGAN NORTH 11830 12820 12810 11700 11600 11510. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight. Waves 2 feet or less Friday. MICHIGAN SOUTH 11830 12820 13810 11710 11510. A chance of showers this evening. Waves 3 to 5 feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Friday. $$ DDV Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes