719
FZUS63 KMKX 020806
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
306 AM CDT Wed Jul 2 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...

High pressure around 30.0 inches will linger across the Middle
Mississippi River Valley today into Thursday, before moving to
the east by Friday. Light southwest to west winds will continue
today into tonight. Light north to northeast winds Thursday into
Thursday night will shift south to southwest on Friday, as a warm
front moves north through the region.

South to southwest winds will then increase Friday night into
Saturday night, as low pressure around 29.6 inches moves across
Lake Superior and Ontario and pulls a cold front through the
region.

There will be mainly small chances for showers and thunderstorms
at times this afternoon and evening. More widespread chances for
showers and thunderstorms expected later Saturday into Sunday, as
the cold front crosses the lake.

LMZ261-362-364-366-563-565-567-868-021530-
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-
306 AM CDT Wed Jul 2 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms this afternoon. Waves 1 to
2 ft.
.TONIGHT...Southwest winds 10 to 15 kt veering to northwest 5 to
10 kt. Chance of showers and thunderstorms in the evening, then
slight chance of showers 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.
.FRIDAY NIGHT...South winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY...Southwest winds 15 to 25 kt becoming south. Chance of
showers. Waves 3 to 5 ft.
.SUNDAY...West winds 10 to 20 kt becoming northwest. Chance of
showers. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-021530-
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-
306 AM CDT Wed Jul 2 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...West winds 10 to 15 kt becoming southwest 5 to 10 kt.
Slight chance of showers and thunderstorms this afternoon. Waves
1 to 2 ft.
.TONIGHT...Southwest winds 10 to 15 kt becoming northwest 5 to
10 kt. Slight chance of showers and thunderstorms in the evening.
Waves 1 to 2 ft.
.THURSDAY...Northwest 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 3 ft.
.FRIDAY NIGHT...South winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY...South winds 15 to 25 kt. Waves 3 to 5 ft.
.SUNDAY...Southwest winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.

$$

LMZ761-021530-
MAFOR 0210/
MICHIGAN NORTH 11610 11600 14510 11600 11700. A chance of showers
and thunderstorms this afternoon and evening. Waves 2 feet or
less.

MICHIGAN SOUTH 12610 12500 11510 13600. Waves 1 foot 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