Great Lakes Forecast
Issued by NWS
Issued by NWS
091 FZUS63 KMKX 011915 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 215 PM CDT Mon Jun 1 2026 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 30.4 inches over Hudson Bay will move to Ontario and Lake Superior by early Tuesday morning, then south over Lake Michigan for Tuesday afternoon and night. Expect light to modest north to northeasterly winds this afternoon to turn more easterly late tonight, but back to northerly on Tuesday. Light and variable winds are then forecast later Tuesday and Tuesday night. Light to modest southerly winds will then return to Lake Michigan for Wednesday and Wednesday night as the high slowly moves east of the region. Winds are expected to gradually increase and shift more southwesterly for Thursday afternoon and night as low pressure around 29.7 inches tracks east across Ontario. Accompanying the late week system will be chances of showers and storms that will continue into the weekend. LMZ261-362-364-366-563-565-567-868-020345- 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- 215 PM CDT Mon Jun 1 2026 SHEBOYGAN WI TO PENTWATER MI NORTH... .TONIGHT...Northeast winds 10 to 20 kt diminishing to 5 to 10 kt. Waves 2 to 4 ft. .TUESDAY...Northeast winds 5 to 10 kt becoming north late in the morning, then increasing to 10 to 15 kt early in the afternoon becoming northwest 10 to 20 kt late. Waves 1 to 2 ft. .TUESDAY NIGHT...Northwest winds 10 to 15 kt backing to southwest. Waves 1 to 2 ft subsiding to 1 ft or less. .WEDNESDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt. Waves 1 to 3 ft. .WEDNESDAY NIGHT...South winds 10 to 20 kt becoming southwest. Waves 1 to 3 ft. .THURSDAY...South winds 15 to 25 kt. Waves 2 to 4 ft building to 3 to 5 ft. .THURSDAY NIGHT...South winds 15 to 25 kt becoming southwest 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. .FRIDAY...Southwest winds 10 to 20 kt. Chance of showers. Waves 3 to 5 ft. .SATURDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. $$ LMZ080-669-671-673-675-777-779-870-872-874-876-878-020345- Lake Michigan from Michigan City IN to St. Joseph MI 5 NM offshore to Mid Lake- Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore to Mid Lake- Lake Michigan from Port Washington to North Point Light WI 5 NM offshore to Mid Lake- Lake Michigan from North Point Light to Wind Point WI 5 NM offshore to Mid Lake- Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM offshore to Mid Lake- Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM offshore to Mid Lake- Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid Lake- Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to Mid Lake- Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid Lake- Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid Lake- Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to Mid Lake- 215 PM CDT Mon Jun 1 2026 SHEBOYGAN WI TO PENTWATER MI SOUTH... .TONIGHT...North winds 10 to 20 kt becoming east. Waves 2 to 4 ft. .TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt. Waves 1 to 3 ft. .TUESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt late in the evening, then becoming northeast after midnight becoming northeast 5 to 10 kt late. Waves 1 to 3 ft subsiding to 1 to 2 ft. .WEDNESDAY...Southeast winds 5 to 10 kt becoming south. Waves 1 to 2 ft. .WEDNESDAY NIGHT...Southeast winds 10 to 15 kt becoming south. Waves 1 to 2 ft. .THURSDAY...South winds 10 to 20 kt. Waves 2 to 4 ft building to 3 to 5 ft. .THURSDAY NIGHT...South winds 10 to 20 kt becoming southwest. Waves 3 to 5 ft. .FRIDAY...Southwest winds 10 to 20 kt becoming south. Chance of showers. Waves 3 to 5 ft. .SATURDAY...South winds 10 to 15 kt increasing to 10 to 20 kt. Chance of showers. Waves 2 to 4 ft. $$ LMZ761-020345- MAFOR 0122/ MICHIGAN NORTH 12120 11220 11200 11100 11800 11810 11710. Waves 1 to 3 feet tonight. Waves 2 feet or less Tuesday. MICHIGAN SOUTH 11820 12120 11220 11110 11100 11810 11820. Waves 1 to 3 feet. $$ Gehring Experimental modernized open lake forecast is available online at weather.gov/mkx/glftable Graphical marine forecasts are available online at: weather.gov/greatlakes