Expires:202506192115;;011555
FZUS63 KMKX 191358
GLFLM 

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
858 AM CDT Thu Jun 19 2025

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... 

Lighter northwest winds will become southwesterly later this 
afternoon into Friday. Will continue to see stronger southerly 
winds through the weekend as a deepening low pressure develops 
over the Dakotas and slowly moves into the Upper Midwest early 
next week. Gales are not expected with this system at this time.


LMZ080-669-671-673-675-777-779-870-872-874-876-878-192115-
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-
858 AM CDT Thu Jun 19 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northwest winds 10 to 20 kt backing to southwest
10 to 15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft. 
.TONIGHT...Southwest winds 10 to 15 kt. Chance of showers and
slight chance of thunderstorms overnight. Waves 1 to 2 ft. 
.FRIDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Chance of showers. Waves 2 to 4 ft. 
.FRIDAY NIGHT...South winds 10 to 20 kt increasing to 15 to
25 kt. Chance of showers in the evening. Waves 3 to 5 ft building
to 4 to 7 ft occasionally to 9 ft. 
.SATURDAY...South winds to 30 kt. Waves 6 to 9 ft occasionally to
12 ft. 
.SATURDAY NIGHT...South winds to 30 kt becoming southwest 15 to
25 kt. Waves 6 to 9 ft occasionally to 12 ft. 
.SUNDAY...Southwest winds 15 to 25 kt becoming south to 30 kt.
Waves 4 to 7 ft occasionally to 9 ft. 
.MONDAY...Southwest winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.  

$$