Great Lakes Forecast
Issued by NWS
Issued by NWS
810 FZUS63 KMKX 201349 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 849 AM CDT Mon May 20 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... Winds will turn southeasterly this morning as a compact area of low pressure of 29.8 inches lifts across southeastern Wisconsin late this morning and this afternoon. Winds may briefly become southwesterly south of this feature--mainly affecting the southern third of the lake--this afternoon. Areas of thunderstorms are also expected with this feature. Winds will turn more south to southeasterly again Tuesday. Breezy southerly winds are expected as a deepening low pressure around 29.4 inches approaches the Upper Great Lakes Region and tracks northeast into Wednesday. There looks to be periods of thunderstorms over the lake, especially southern portions Monday through Wednesday morning. LMZ261-362-364-366-563-565-567-868-202115- 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- 849 AM CDT Mon May 20 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt. Chance of showers and slight chance of thunderstorms. Waves 1 to 3 ft. .TONIGHT...Southwest winds 10 to 20 kt diminishing to 10 to 15 kt late in the evening, then veering to northwest after midnight diminishing to 5 to 10 kt late. Chance of showers and slight chance of thunderstorms in the evening, then slight chance of showers overnight. Waves 1 to 3 ft. .TUESDAY...North winds 5 to 10 kt becoming northeast late in the morning, then becoming east 10 to 15 kt early in the afternoon increasing to 10 to 20 kt late. Waves 1 to 2 ft. .TUESDAY NIGHT...Southeast winds to 30 kt becoming south. Showers with a chance of thunderstorms. Waves 4 to 6 ft occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft. .WEDNESDAY...Southwest winds to 30 kt. Waves 6 to 9 ft occasionally to 12 ft. .WEDNESDAY NIGHT...West winds to 30 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .THURSDAY...West winds to 30 kt becoming southwest 15 to 25 kt. Waves 2 to 4 ft. .FRIDAY...Northeast winds 10 to 15 kt becoming southeast 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-202115- 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- 849 AM CDT Mon May 20 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt. Slight chance of showers and thunderstorms through mid morning, then chance of showers and thunderstorms this afternoon. Waves 1 to 3 ft. .TONIGHT...Southwest winds 10 to 20 kt diminishing to 5 to 10 kt. Chance of showers and thunderstorms in the evening, then slight chance of showers and thunderstorms overnight. Waves 1 to 3 ft. .TUESDAY...Southeast winds 5 to 10 kt increasing to 10 to 20 kt. Chance of showers in the morning. Waves 1 to 3 ft. .TUESDAY NIGHT...South winds to 30 kt. Showers likely with a chance of thunderstorms in the evening, then chance of showers and thunderstorms overnight. Waves 4 to 6 ft occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft. .WEDNESDAY...Southwest winds to 30 kt diminishing to 15 to 25 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .WEDNESDAY NIGHT...West winds 10 to 20 kt. Waves 3 to 5 ft. .THURSDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to 4 ft. .FRIDAY...East winds 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ761-202115- MAFOR 2016/ MICHIGAN NORTH 11310 11326 11426 11410 11610 11710 11800 11100. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Tuesday morning. MICHIGAN SOUTH 11320 12420 11520 12510 11400 11300. A chance of showers and thunderstorms this afternoon and evening. A chance of showers Tuesday morning. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Tuesday morning. $$ Boxell Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes