908
FZUS63 KMKX 131944
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
244 PM CDT Sun Jul 13 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...

Modest south to southwest winds are expected to linger into
Monday, as high pressure around 30.0 inches moves across the
southern portions of the Great Lakes region. Increasing southerly
winds are expected Tuesday into Tuesday night, as a low pressure
system around 29.7 inches develops across the Central High Plains.
This low should move toward and across the region Wednesday into
Wednesday night. Winds may then shift to the north for Thursday
into Friday, as high pressure around 30.1 inches develops over the
region.

LMZ261-362-364-366-563-565-567-868-140315-
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-
244 PM CDT Sun Jul 13 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southwest winds 10 to 20 kt. Areas of smoke. Waves
2 to 4 ft.
.MONDAY...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt becoming south 5 to
10 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 10 to 15 kt backing to northeast
10 to 20 kt. Chance of showers in the afternoon. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming north
10 to 20 kt. Chance of showers. Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.
.FRIDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140315-
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-
244 PM CDT Sun Jul 13 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 5 to 10 kt becoming southwest. Areas of
smoke. Waves 1 to 2 ft.
.MONDAY...Southwest winds 5 to 10 kt becoming south 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...South winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 2 ft.
.TUESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.
.TUESDAY NIGHT...South winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers and thunderstorms in the afternoon. Waves 1 to
3 ft.
.WEDNESDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Chance of showers and thunderstorms. Waves 1 to 3 ft.
.THURSDAY...West winds 10 to 20 kt becoming northwest. Chance of
showers and thunderstorms. Waves 2 to 4 ft.
.FRIDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ761-140315-
MAFOR 1322/
MICHIGAN NORTH 16520. Waves 1 to 3 feet.

MICHIGAN SOUTH 12400 13500 12510 11410. Waves 2 feet or less.

$$
Wood

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

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