Great Lakes Forecast
Issued by NWS
Issued by NWS
596 FZUS63 KMKX 240157 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 857 PM CDT Thu May 23 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 29.9 inches will drift across the Great Lakes through tonight. Light and variable winds will become easterly during the early morning hours on Friday. Modest east- southeast winds on Friday are then expected as a warm front approaches followed by a cold front Friday night. A couple rounds of thunderstorms are expected with the fronts. Modest westerly winds will occur after the cold frontal passage and continue into Saturday. High pressure around 29.9 inches will then move across Lake Michigan for Saturday afternoon and evening. LMZ261-362-364-366-563-565-567-868-240915- 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- 857 PM CDT Thu May 23 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TONIGHT...Southwest winds 10 to 20 kt backing to northeast. Waves 1 to 3 ft. .FRIDAY...Northeast winds 10 to 20 kt becoming east 15 to 25 kt. Chance of showers in the afternoon. Waves 1 to 3 ft. .FRIDAY NIGHT...Southeast winds 15 to 25 kt veering to southwest 10 to 20 kt. Showers likely with a chance of thunderstorms in the evening, then showers with a chance of thunderstorms overnight. Waves 3 to 5 ft. .SATURDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft. .SATURDAY NIGHT...South winds 10 to 15 kt becoming southeast 5 to 10 kt. Waves 1 to 2 ft. .SUNDAY...Southeast winds 10 to 20 kt becoming east. Waves 2 to 4 ft. .SUNDAY NIGHT...East winds 15 to 25 kt becoming northeast 10 to 20 kt. Showers likely. Waves 4 to 6 ft occasionally to 8 ft. .MONDAY...North winds 15 to 25 kt becoming northwest. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .TUESDAY...Northwest winds 15 to 25 kt. Chance of showers. Waves 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-240915- 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- 857 PM CDT Thu May 23 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TONIGHT...Southeast winds 10 to 15 kt. Waves 1 to 3 ft. .FRIDAY...Southeast winds 10 to 20 kt increasing to 15 to 25 kt. Patchy fog in the afternoon. Chance of showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 ft. .FRIDAY NIGHT...Southeast winds 10 to 20 kt veering to west. Patchy fog in the evening. Showers 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. Waves 2 to 4 ft. .SATURDAY NIGHT...Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. .SUNDAY...Southeast winds 10 to 20 kt. Chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Waves 3 to 5 ft. .SUNDAY NIGHT...Southeast winds 10 to 20 kt veering to west. Chance of showers and thunderstorms. Waves 3 to 5 ft. .MONDAY...West winds 15 to 25 kt becoming northwest to 30 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally to 9 ft. .TUESDAY...Northwest winds 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. $$ LMZ761-240915- MAFOR 2404/ MICHIGAN NORTH 12110 11120 11210 11220 11230 11236 11336. A chance of thunderstorms Friday evening. Waves 2 feet or less overnight. Waves 1 to 3 feet Friday. Waves 2 to 4 feet Friday evening. MICHIGAN SOUTH 12310 13320 11330 11336 11429. Waves 2 feet or less overnight. Waves 1 to 3 feet Friday and Friday evening. $$ CMiller Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes