Great Lakes Forecast
Issued by NWS
Issued by NWS
523 FZUS63 KMKX 201357 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 857 AM CDT Thu Jun 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... Patchy dense fog is possible across the southern half this morning and will be possible once again overnight tonight into early Friday morning. Light northeast winds will continue across the lake tonight into Thursday night as high pressure around 30.4 inches sits over Lake Superior. Low pressure around 29.6 inches developing in the central High Plains Friday will then allow a stationary front to develop across the open waters, producing periods of thunderstorms. Low pressure will lift into southern Minnesota on Saturday, leading to gusty southerly winds and continued periods of thunderstorms across the lake. Winds shift southwesterly into Saturday night, and westerly on Sunday as low pressure departs to the east. 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- 857 AM CDT Thu Jun 20 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...Northeast winds 10 to 20 kt becoming north. Chance of showers through mid morning. Waves 2 to 4 ft. .TONIGHT...North winds 10 to 15 kt becoming northeast 5 to 10 kt. Slight chance of showers in the evening, then chance of showers and slight chance of thunderstorms overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft. .FRIDAY...Northeast winds 10 to 15 kt becoming north. Chance of showers. Waves 1 to 2 ft. .FRIDAY NIGHT...Northeast winds 5 to 10 kt becoming east. Chance of showers and thunderstorms. Waves 1 ft or less. .SATURDAY...Southeast winds 10 to 20 kt becoming south. Showers with a chance of thunderstorms. Waves 1 to 2 ft building to 2 to 4 ft. .SATURDAY NIGHT...South winds 10 to 20 kt becoming southwest. Chance of showers and thunderstorms. Waves 2 to 4 ft. .SUNDAY...West winds 10 to 20 kt increasing to 15 to 25 kt. Waves 2 to 4 ft. .MONDAY...Northwest winds 10 to 15 kt becoming west 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- 857 AM CDT Thu Jun 20 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...North winds 10 to 20 kt. Slight chance of showers and thunderstorms through mid morning. Patchy fog through mid morning, then patchy dense fog this afternoon. Waves 2 to 4 ft. .TONIGHT...North winds 10 to 20 kt diminishing to 5 to 10 kt. Slight chance of showers in the evening, then slight chance of showers and thunderstorms overnight. Waves 2 to 4 ft subsiding to 1 to 2 ft. .FRIDAY...Northwest winds 5 to 10 kt becoming northeast. Waves 1 to 2 ft. .FRIDAY NIGHT...Northeast winds 5 to 10 kt veering to south. Chance of showers and thunderstorms overnight. Waves 1 to 2 ft. .SATURDAY...South winds 10 to 20 kt. Chance of showers. Waves 1 to 3 ft building to 2 to 4 ft. .SATURDAY NIGHT...Southwest winds 10 to 20 kt increasing to 15 to 25 kt. Showers with a chance of thunderstorms. Waves 3 to 5 ft. .SUNDAY...West winds 10 to 20 kt. Waves 3 to 5 ft. .MONDAY...Northwest winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ761-202115- MAFOR 2016/ MICHIGAN NORTH 12120 12810 11110 12100 11110. A chance of showers overnight and Friday morning. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Friday morning. MICHIGAN SOUTH 12820 19824 11824 12810 11800 12700. Waves 1 to 3 feet this afternoon and tonight. Waves 2 feet or less Friday morning. $$ Wagner Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes