Great Lakes Forecast
Issued by NWS
Issued by NWS
202 FZUS63 KMKX 250808 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 308 AM CDT Wed Sep 25 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 around 29.7 inches continues northeast across lower MI early this morning and will track into Lake Huron and eastern Ontario through the day. Will also see patchy fog potential linger over the the northern third of the Lake on the backside of the departing low pressure. Otherwise expect lighter northwest winds around 10-15 knots across Lake Michigan today as the pressure gradient relaxes with an incoming surface high pressure around 30.0 inches building in from the west. Influence from high pressure will continue Thursday as it moves overhead. Then winds are expected to turn easterly and increase, especially across southern Lake Michigan, for Friday into the weekend as the remnants from the Gulf of Mexico tropical system works its way northward. Will see this low meander back southeast heading into the weekend with somewhat light winds and influence from another surface high pressure creep back southward. LMZ261-362-364-366-563-565-567-868-251530- 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- 308 AM CDT Wed Sep 25 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...North winds 10 to 15 kt backing to west. Waves 1 to 3 ft. .TONIGHT...Southwest winds 10 to 15 kt veering to northwest 5 to 10 kt. Waves 1 to 2 ft. .THURSDAY...North winds 5 to 10 kt becoming northeast 10 to 15 kt. Waves 1 ft or less. .THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast. Waves 1 ft or less. .FRIDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt. Waves 1 to 2 ft. .FRIDAY NIGHT...East winds 10 to 20 kt. Waves 1 to 3 ft. .SATURDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft. .SUNDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-251530- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 308 AM CDT Wed Sep 25 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt. Slight chance of waterspouts this morning. Waves 2 to 4 ft. .TONIGHT...Northwest winds 10 to 15 kt diminishing to 5 to 10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft. .THURSDAY...North winds 5 to 10 kt increasing to 10 to 15 kt. Waves 1 to 2 ft. .THURSDAY NIGHT...Northeast winds 10 to 15 kt becoming east 10 to 20 kt. Waves 1 to 3 ft. .FRIDAY...Northeast winds 10 to 20 kt increasing to 30 kt in the afternoon. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. .FRIDAY NIGHT...Northeast winds to 30 kt diminishing to 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft. .SATURDAY...Northeast winds 10 to 20 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...Northeast winds 10 to 20 kt becoming north. Waves 2 to 4 ft. $$ LMZ761-251530- MAFOR 2510/ MICHIGAN NORTH 11810 12710 11610 12510 11600 11700. Waves 1 to 3 feet today. Waves 2 feet or less tonight. MICHIGAN SOUTH 14710 11710 13700. Waves 1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to 3 feet today. Waves 1 to 3 feet subsiding to 1 foot or less tonight. $$ Wagner Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes