959
FZUS63 KMKX 011401
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
901 AM CDT Tue Jul 1 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...

West to northwest winds are expected into today across the lake.
They will weaken and become southwest in the afternoon across
northern portions of the lake, with lighter winds to the south.
Winds will turn back to the southwest to west tonight into
Wednesday night, as weak high pressure of 30.0 inches moves
through the Ohio Valley. Light winds Thursday should become south
Friday and increase into Saturday, as a warm front pushes north
through the region.

LMZ261-362-364-366-563-565-567-868-012115-
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-
901 AM CDT Tue Jul 1 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...West winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 1 to 2 ft.
.TONIGHT...Southwest winds 10 to 15 kt becoming west. Waves 1 to
2 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest 10 to
20 kt. Chance of showers and thunderstorms in the afternoon.
Waves 1 to 2 ft.
.WEDNESDAY NIGHT...West winds 10 to 20 kt becoming northwest 5 to
10 kt overnight. Waves 1 to 2 ft.
.THURSDAY...North winds 5 to 10 kt becoming northeast 10 to
15 kt. Waves 1 ft or less.
.THURSDAY NIGHT...East winds 5 to 10 kt becoming southeast. Waves
1 ft or less.
.FRIDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft building to 1 to 3 ft.
.SATURDAY...South winds 15 to 25 kt becoming southwest to 30 kt.
Chance of showers and thunderstorms. Waves 4 to 6 ft occasionally
to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-012115-
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-
901 AM CDT Tue Jul 1 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northwest winds 10 to 15 kt becoming west. Waves
1 to 3 ft.
.TONIGHT...Southwest winds 5 to 10 kt becoming west. Waves 1 to
2 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 kt becoming west.
Waves 1 to 2 ft.
.THURSDAY...West winds 5 to 10 kt backing to south 10 to 15 kt.
Waves 1 ft or less.
.THURSDAY NIGHT...Southeast winds 5 to 10 kt becoming south.
Waves 1 ft or less.
.FRIDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft building to 1 to 3 ft.
.SATURDAY...South winds 15 to 25 kt. Chance of showers. Waves
4 to 6 ft occasionally to 8 ft.

$$

LMZ761-012115-
MAFOR 0116/
MICHIGAN NORTH 11610 14510 11510 12610. Waves 2 feet or less.

MICHIGAN SOUTH 12710 13510 12600 11610. Waves 2 feet or less.

$$


Sheppard

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

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