####018006431#### FZUS63 KMKX 220153 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 853 PM CDT Sun Apr 21 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... Light and variable winds expected tonight, followed by accelerating south winds on Monday as low pressure around 29.4 inches moves from southern Saskatchewan to southern Manitoba. The low approaches Lake Superior Monday night into Tuesday morning, with gusty south winds (approaching gale force) over Lake Michigan. The low passes over northern Lake Michigan mid day Tuesday, causing a brief lull in the winds. A cold front crosses the lake Tuesday afternoon into Tuesday evening. Winds veer north and approach gale force behind the front. High pressure of 30.4 inches builds into the Great Lakes region on Wednesday, with gusty north winds over Lake Michigan gradually subsiding. Light and variable winds expected under the high pressure Wednesday night into Thursday, followed by accelerating southeast winds into Friday as high pressure departs eastward and low pressure develops over the Great Plains. LMZ080-669-671-673-675-777-779-870-872-874-876-878-220930- 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- 853 PM CDT Sun Apr 21 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TONIGHT...Southwest winds 10 to 20 kt diminishing to 10 to 15 kt late this evening, then becoming west after midnight becoming southwest 5 to 10 kt late. Waves 1 to 3 ft. .MONDAY...Southwest winds 10 to 15 kt becoming south 15 to 25 kt. Waves 1 to 2 ft building to 3 to 5 ft. .MONDAY NIGHT...South winds 15 to 25 kt becoming southwest gales to 35 kt. Showers likely overnight. Waves 4 to 6 ft occasionally to 8 ft building to 7 to 10 ft occasionally to 13 ft. .TUESDAY...Southwest winds to 30 kt diminishing to 10 to 20 kt in the afternoon. Chance of showers in the morning, then showers likely in the afternoon. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft occasionally to 9 ft. .TUESDAY NIGHT...Northwest winds to 30 kt becoming north. Waves 7 to 10 ft occasionally to 13 ft building to 8 to 11 ft occasionally to 14 ft. .WEDNESDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 7 to 10 ft occasionally to 13 ft. .WEDNESDAY NIGHT...North winds 10 to 20 kt becoming east 10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. .THURSDAY...Southeast winds 10 to 15 kt. Waves 1 to 3 ft. .FRIDAY...Southeast winds to 30 kt. Rain showers likely. Waves 4 to 7 ft occasionally to 9 ft. $$ LMZ261-362-364-366-563-565-567-868-220930- Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM offshore to Mid Lake- Lake Michigan South of a line from Seul Choix Point to the Mackinac Bridge and north of a line from Charlevoix MI to South Fox Island 5 NM offshore- Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to Mid Lake- Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to Mid Lake- Lake Michigan from Rock Island Passage to Sturgeon Bay WI- Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to Mid Lake- Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to Mid Lake- Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid Lake- 853 PM CDT Sun Apr 21 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TONIGHT...Northwest winds 10 to 15 kt backing to south. Waves 1 to 3 ft. .MONDAY...South winds 10 to 20 kt increasing to 30 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. .MONDAY NIGHT...South winds to 30 kt becoming southwest. Rain showers likely in the evening, then rain showers overnight. Waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft. .TUESDAY...Southwest winds to 30 kt becoming west. Chance of rain showers in the morning, then rain showers likely in the afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TUESDAY NIGHT...North winds to 30 kt. Waves 7 to 10 ft occasionally to 13 ft. .WEDNESDAY...Northeast winds 15 to 25 kt becoming north 10 to 20 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft occasionally to 8 ft. .WEDNESDAY NIGHT...Northeast winds 10 to 20 kt becoming southeast 5 to 10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft. .THURSDAY...South winds 10 to 15 kt. Waves 1 to 3 ft. .FRIDAY...Southeast winds to 30 kt. Chance of rain showers. Waves 4 to 6 ft occasionally to 8 ft. $$ LMZ761-220930- MAFOR 2204/ MICHIGAN NORTH 11300 12410 11420 11430 12440 11436. Waves 2 feet or less overnight. Waves 1 to 3 feet building to 3 to 5 feet Monday. Waves 3 to 6 feet Monday evening. MICHIGAN SOUTH 11610 11600 12510 11420 12430 11436. Waves 2 feet or less overnight. Waves 1 to 3 feet building to 3 to 5 feet Monday. Waves 3 to 5 feet Monday evening. $$ Sheppard Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes