066
FZUS63 KMKX 110803
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
303 AM CDT Thu Jun 11 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...

Modest south to southwest winds can be expected through this
morning but will become breezy south to southeasterly this
afternoon. This will occur as low pressure around 29.5 inches
moves from eastern Iowa to central Lake Michigan by early
evening, then northeast into Ontario by early Friday morning.
Winds will become westerly and breezy behind the low pressure area
this evening into the overnight. Modest to breezy southwest winds
will follow for Friday into Saturday. Numerous thunderstorms are
expected this afternoon and evening and may become severe.

LMZ261-362-364-366-563-565-567-868-111515-
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-
303 AM CDT Thu Jun 11 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Southwest winds 10 to 20 kt becoming southeast 15 to
25 kt. Patchy fog. Scattered thunderstorms with a chance of
showers this afternoon. Waves 2 to 4 ft.
.TONIGHT...Southeast winds to 30 kt veering to west. Patchy fog
in the evening. Showers likely with scattered thunderstorms in
the evening, then slight chance of showers overnight. Waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft.
.FRIDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 3 to 5 ft.
.FRIDAY NIGHT...Southwest winds to 30 kt diminishing to 15 to
25 kt. Waves 3 to 5 ft.
.SATURDAY...Southwest winds 15 to 25 kt increasing to 30 kt.
Chance of showers in the morning, then showers likely in the
afternoon. Waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft.
.SATURDAY NIGHT...Southwest winds 15 to 25 kt becoming west 10 to
20 kt. Chance of showers. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming west 15 to 25 kt.
Waves 2 to 4 ft.
.MONDAY...West winds 15 to 25 kt becoming southwest. Waves 2 to
4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-111515-
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-
303 AM CDT Thu Jun 11 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southwest winds 10 to 20 kt becoming south 15 to 25 kt.
Patchy fog this morning. Slight chance of showers with isolated
thunderstorms this afternoon. Waves 2 to 4 ft.
.TONIGHT...South winds to 30 kt veering to west 15 to 25 kt.
Patchy fog in the evening. Showers and scattered thunderstorms in
the evening. Waves 4 to 7 ft occasionally to 9 ft building to
5 to 8 ft occasionally to 10 ft.
.FRIDAY...West winds 10 to 20 kt becoming southwest 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.FRIDAY NIGHT...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY...Southwest winds 15 to 25 kt becoming south to 30 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...Southwest winds 15 to 25 kt becoming west 10 to
20 kt. Showers with a chance of thunderstorms. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.SUNDAY...Northwest winds 15 to 25 kt. Waves 3 to 5 ft.
.MONDAY...West winds 15 to 25 kt becoming southwest 10 to 20 kt.
Waves 3 to 5 ft.

$$

LMZ761-111515-
MAFOR 1110/
MICHIGAN NORTH 12520 11410 11420 11340 19349 11446 19449 11540
11640. Waves 2 to 4 feet subsiding to 1 to 3 feet today. Waves 3
to 6 feet tonight.

MICHIGAN SOUTH 11520 11510 11410 11330 11446 19449 11546 19549
11640 11630. Waves 2 to 4 feet subsiding to 1 to 3 feet today.
Waves 3 to 6 feet tonight.

$$


Cronce

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes