Great Lakes Forecast
Issued by NWS
Issued by NWS
636 FZUS63 KMKX 171343 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 843 AM CDT Tue Sep 17 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 30.2 inches over the Northeast and low pressure around 29.3 inches over eastern Montana will linger into Wednesday, keeping winds light and variable. The high will weaken to around 30.0 inches Thursday, with the low strengthening to around 29.2 inches. Light to modest south to southeast winds are expected over the lake during this time. Low pressure will slowly shift eastward toward the Great Lakes region this weekend. LMZ261-362-364-366-563-565-567-868-172115- 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- 843 AM CDT Tue Sep 17 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...South winds 10 to 15 kt. Waves 1 to 2 ft. .TONIGHT...Southeast winds 5 to 10 kt becoming south. Waves 1 to 2 ft. .WEDNESDAY...South winds 5 to 10 kt backing to east. Waves 1 to 2 ft. .WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast. Waves 1 ft or less. .THURSDAY...Southeast winds 5 to 10 kt becoming south. Waves 1 ft or less. .THURSDAY NIGHT...Southeast winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. .FRIDAY...South winds 10 to 20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft. .SATURDAY...South winds 10 to 15 kt. Waves 1 to 3 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-172115- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 843 AM CDT Tue Sep 17 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...Southeast winds 10 to 15 kt backing to north. Waves 1 to 2 ft. .TONIGHT...Northeast winds 5 to 10 kt veering to southeast. Waves 1 to 2 ft. .WEDNESDAY...Southeast winds 5 to 10 kt becoming east. Waves 1 to 2 ft. .WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming east. Waves 1 ft or less. .THURSDAY...Southeast winds 5 to 10 kt. Waves 1 ft or less. .THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast 10 to 15 kt. Waves 1 to 2 ft. .FRIDAY...South winds 10 to 15 kt becoming southeast. Waves 1 to 3 ft. .SATURDAY...Southeast winds 10 to 15 kt. Waves 1 to 3 ft. $$ LMZ761-172115- MAFOR 1716/ MICHIGAN NORTH 11410 11510 12300 12310 12400. Waves 2 feet or less. MICHIGAN SOUTH 11200 13100 11210 11310 12300. Waves 2 feet or less. $$ MH Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes