760
FZUS63 KMKX 061938
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
238 PM CDT Sun Sep 6 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 30.1 inches over the northern Great Lakes
will slowly shift to the lower Great Lakes for Monday. Light and
variable winds are forecast through this period.

Increasing south to southwest winds are expected Tuesday into
Wednesday, shifting west to northwest Wednesday night into
Thursday, as a cold front moves toward and through the region.
Cannot rule out a few isolated gales across far northern Lake
Michigan on Wednesday.

LMZ261-362-364-366-563-565-567-868-070315-
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-
238 PM CDT Sun Sep 6 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 15 kt becoming east 5 to 10 kt
late this evening, then becoming southeast after midnight becoming
south late. Waves 1 to 2 ft.
.MONDAY...South winds 5 to 10 kt becoming southwest. Waves 1 to
2 ft.
.MONDAY NIGHT...South winds 5 to 10 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft building to 2 to 4 ft.
.TUESDAY...South winds 15 to 25 kt increasing to 30 kt. Chance of
showers in the afternoon. Waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft.
.TUESDAY NIGHT...South winds to 30 kt becoming southwest. Showers
likely in the evening, then showers overnight. Waves 5 to 8 ft
occasionally to 10 ft.
.WEDNESDAY...Southwest winds to 30 kt. Showers in the morning.
Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...West winds to 30 kt becoming northwest to 30
kt. Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY...Northwest winds 15 to 25 kt. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.FRIDAY...Southwest winds 15 to 25 kt becoming south to 30 kt.
Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-070315-
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-
238 PM CDT Sun Sep 6 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 10 to 15 kt veering to southeast 10 to 15
kt. Waves 1 to 3 ft.
.MONDAY...Southeast winds 10 to 15 kt becoming east. Waves 1 to
2 ft.
.MONDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft building to 2 to 4 ft.
.TUESDAY...South winds 15 to 25 kt. Waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft.
.TUESDAY NIGHT...South winds 15 to 25 kt becoming southwest.
Chance of showers in the evening, then showers overnight. Waves
5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Southwest winds to 30 kt. Showers likely in the
morning. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...West winds to 30 kt becoming northwest. Waves
4 to 6 ft occasionally to 8 ft.
.THURSDAY...Northwest winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...Southwest winds 10 to 20 kt becoming south 15 to 25 kt.
Waves 1 to 3 ft.

$$

LMZ761-070315-
MAFOR 0622/
MICHIGAN NORTH 11820 11210 12300 11400 12410 11510. Waves 2 feet
or less.

MICHIGAN SOUTH 11820 11110 11210 11310 11300 13310. Waves 2 feet
or less.

$$


Gehring

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

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