Great Lakes Forecast
Issued by NWS
Issued by NWS
777 FZUS63 KMKX 301359 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 859 AM CDT Sun Jun 30 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... Gusty north to northwest winds are expected today. Winds will weaken tonight into Monday and become predominately easterly as high pressure around 30.3 inches builds in from the Northern Plains. High pressure will advect east of the Lake Monday night, causing winds to become southeasterly and increase. South to southeast will linger into Tuesday night, before a cold front moves east across the region. Behind the cold front, southwest to west winds gradually decelerate throughout the day Wednesday. Weak high pressure passing over the lake Thursday will lead to light and variable winds. LMZ261-362-364-366-563-565-567-868-302115- 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- 859 AM CDT Sun Jun 30 2024 SHEBOYGAN WI TO PENTWATER MI NORTH... .REST OF TODAY...North winds 15 to 25 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .TONIGHT...North winds 10 to 20 kt diminishing to 5 to 10 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft. .MONDAY...Northwest winds 5 to 10 kt backing to southwest. Waves 1 ft or less. .MONDAY NIGHT...South winds 10 to 15 kt becoming southeast 15 to 25 kt overnight. Waves 1 to 2 ft building to 2 to 4 ft. .TUESDAY...South winds to 30 kt. Showers likely in the morning, then chance of showers in the afternoon. Waves 5 to 8 ft occasionally to 10 ft. .TUESDAY NIGHT...South winds 15 to 25 kt. Showers with a chance of thunderstorms. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .WEDNESDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt. Waves 3 to 5 ft. .THURSDAY...West winds 5 to 10 kt becoming south 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-302115- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 859 AM CDT Sun Jun 30 2024 SHEBOYGAN WI TO PENTWATER MI SOUTH... .REST OF TODAY...North winds 15 to 25 kt. Waves 6 to 9 ft occasionally to 12 ft. .TONIGHT...North winds to 30 kt diminishing to 15 to 25 kt late in the evening, then becoming northeast 10 to 20 kt overnight. Waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. .MONDAY...East winds 10 to 15 kt becoming southeast. Waves 2 to 4 ft subsiding to 1 to 2 ft. .MONDAY NIGHT...Southeast winds 10 to 15 kt increasing to 15 to 25 kt overnight. Waves 1 to 2 ft building to 2 to 4 ft. .TUESDAY...South winds to 30 kt. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft. .TUESDAY NIGHT...South winds 15 to 25 kt. Showers likely with a chance of thunderstorms. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft. .WEDNESDAY...Southwest winds 10 to 20 kt. Waves 3 to 5 ft. .THURSDAY...West winds 5 to 10 kt backing to south 10 to 15 kt. Waves 1 to 2 ft. $$ LMZ761-302115- MAFOR 3016/ MICHIGAN NORTH 12830 11820 12810 11800 11700 11500. Waves 3 to 6 feet this afternoon. Waves 1 to 3 feet subsiding to 1 foot or less tonight. Waves 1 foot or less Monday morning. MICHIGAN SOUTH 14830 11130 11120 11210 11200. Waves 4 to 7 feet this afternoon. Waves 4 to 7 feet subsiding to 2 to 4 feet tonight. Waves 1 to 3 feet Monday morning. $$ Sheppard Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes