727 FZUS63 KMKX 301944 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 244 PM CDT Sat Sep 30 2023 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 30.3 inches will remain to the east of the region through early next week. The high will allow modest south to southeast winds to persist across Lake Michigan. There is a chance for scattered showers and weak thunderstorms over the northern half of the lake until noon Sunday. Otherwise, quiet weather until Wednesday. A cold front will approach the region from the west by the middle of next week, which may allow the south winds to increase before it moves through. Southwest to northwest winds are expected late next week behind the front. LMZ261-362-364-366-563-565-567-868-010315- 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- 244 PM CDT Sat Sep 30 2023 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...South winds 10 to 20 kt diminishing to 10 to 15 kt. Slight chance of showers and thunderstorms this evening, then chance of showers and thunderstorms overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft. .SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Slight chance of showers and thunderstorms in the morning. Waves 1 to 3 ft. .SUNDAY NIGHT...South winds 10 to 20 kt becoming southwest 10 to 15 kt. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to 4 ft. .MONDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 2 to 4 ft. .TUESDAY...South winds 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft. .TUESDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt. Waves 3 to 5 ft. .WEDNESDAY...South winds to 30 kt. Waves 4 to 7 ft occasionally to 9 ft. .THURSDAY...West winds 10 to 20 kt becoming southwest. Chance of showers. Waves 3 to 5 ft subsiding to 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-010315- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 244 PM CDT Sat Sep 30 2023 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...Southeast winds 10 to 20 kt becoming south 10 to 15 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft. .SUNDAY...South winds 10 to 15 kt. Waves 1 to 3 ft. .SUNDAY NIGHT...Southeast winds 10 to 15 kt becoming south 5 to 10 kt. Waves 1 to 3 ft. .MONDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft. .MONDAY NIGHT...Southeast winds 10 to 15 kt becoming south 5 to 10 kt. Waves 2 to 4 ft. .TUESDAY...South winds 10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft. .TUESDAY NIGHT...Southeast winds 10 to 20 kt becoming south 15 to 25 kt. Waves 3 to 5 ft. .WEDNESDAY...South winds 15 to 25 kt. Waves 3 to 5 ft. .THURSDAY...West winds 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. $$ LMZ761-010315- MAFOR 3022/ MICHIGAN NORTH 12420 14410 12420. A chance of showers and thunderstorms overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft tonight. Waves 2 to 4 ft Sunday. MICHIGAN SOUTH 11320 11310 15410. Waves 3 to 5 ft subsiding to 2 to 4 ft tonight. Waves 1 to 3 ft Sunday. $$ Sheppard Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes