Great Lakes Forecast
Issued by NWS
Issued by NWS
723 FZUS63 KMKX 180838 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 338 AM CDT Fri Oct 18 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 of 30.4 inches will linger over the Ohio River Valley and Middle Appalachia through the weekend and into Monday. Breezy south to southwest winds will continue through the weekend as a weak cold front approaches the upper Great Lakes and weakens on Sunday. The approach of the front will tighten the pressure gradient, leading to the gusty conditions with the strongest gusts over the northern half to northern one third of the lake. Very slight chances for showers will occur over the northern end of Lake Michigan as the front draws close Saturday night into Sunday. LMZ261-362-364-366-563-565-567-868-181530- 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- 338 AM CDT Fri Oct 18 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .TODAY...Southwest winds 15 to 25 kt becoming south to 30 kt. Waves 5 to 8 ft occasionally to 10 ft. .TONIGHT...South winds to 30 kt becoming southwest 10 to 20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft. .SATURDAY...Southwest winds 10 to 20 kt becoming south 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .SATURDAY NIGHT...Southwest winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .SUNDAY...Southwest winds 15 to 25 kt. Waves 3 to 5 ft. .SUNDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 3 to 5 ft. .MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to 4 ft. .TUESDAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-181530- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 338 AM CDT Fri Oct 18 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TODAY...Southwest winds 10 to 20 kt becoming south 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft. .TONIGHT...South winds 15 to 25 kt becoming southwest 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. .SATURDAY...Southwest winds 10 to 20 kt becoming south. Waves 3 to 5 ft. .SATURDAY NIGHT...South winds 10 to 20 kt becoming southwest. Waves 3 to 5 ft. .SUNDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. .SUNDAY NIGHT...Southwest winds 10 to 20 kt. Waves 3 to 5 ft. .MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to 4 ft. .TUESDAY...South winds 10 to 20 kt. Waves 3 to 5 ft. $$ LMZ761-181530- MAFOR 1810/ MICHIGAN NORTH 12530 14440 11530 11520. Waves 3 to 6 feet building to 4 to 7 feet today. Waves 4 to 7 feet subsiding to 3 to 6 feet tonight. MICHIGAN SOUTH 11530 11420 14430 11420 11520. Waves 3 to 5 feet today. Waves 3 to 5 feet subsiding to 2 to 4 feet tonight. $$ CMiller Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes