285
FZUS63 KMKX 261359
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
859 AM CDT Sat Jul 26 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...

Continue to see the warm frontal boundary gradually lift
northward across the lake this morning with easterly winds in the
northern portions turning southerly by the afternoon. Light
southerly winds will be across all of Lake Michigan by this
evening and will continue to see light to occasionally moderate
southerly winds prevail through into early next week. Will be a
round of showers and few embedded storms across southern half of
the lake today with additional windows for showers and
thunderstorms to track across the Lake Sunday night into Monday
and again midweek. May see more variable winds accompanying any
storm complex that traverses the Lake through early next week.

LMZ261-362-364-366-563-565-567-868-262115-
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-
859 AM CDT Sat Jul 26 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southeast winds 5 to 10 kt becoming south.
Slight chance of showers this afternoon. Waves 1 ft or less.
.TONIGHT...South winds 10 to 15 kt becoming southwest 5 to 10 kt.
Patchy fog overnight. Waves 1 to 2 ft.
.SUNDAY...West winds 5 to 10 kt becoming southwest 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon becoming southwest 10 to 20 kt late. Waves 1 to 2 ft.
.SUNDAY NIGHT...South winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.
.MONDAY...Southwest winds 10 to 20 kt. Chance of showers in the
morning. Waves 1 to 2 ft.
.MONDAY NIGHT...Northwest winds 10 to 20 kt becoming north 5 to
10 kt. Waves 1 to 2 ft.
.TUESDAY...North winds 10 to 15 kt becoming northwest 10 to
20 kt. Waves 1 to 2 ft.
.WEDNESDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-262115-
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-
859 AM CDT Sat Jul 26 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...South winds 5 to 10 kt increasing to 10 to
15 kt. Chance of showers and slight chance of thunderstorms
through mid morning, then chance of showers and thunderstorms
this afternoon. Waves 1 to 2 ft.
.TONIGHT...South winds 10 to 15 kt becoming west 5 to 10 kt.
Chance of showers and thunderstorms in the evening, then chance
of showers and slight chance of thunderstorms overnight. Patchy
fog overnight. Waves 1 to 2 ft.
.SUNDAY...West winds 5 to 10 kt backing to south. Patchy fog in
the morning. Waves 1 ft or less.
.SUNDAY NIGHT...South winds 5 to 10 kt becoming southwest. Waves
1 to 2 ft.
.MONDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt veering to north 5 to
10 kt. Waves 1 to 2 ft.
.TUESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Waves 1 to 2 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Chance of showers. Waves 1 to 3 ft.

$$

LMZ761-262115-
MAFOR 2616/
MICHIGAN NORTH 12400 11410 11400 12510 11500 11510. Waves 1 foot
or less.

MICHIGAN SOUTH 11416 12410 11400 12500 12600. A chance of
thunderstorms this afternoon and evening. Waves 1 foot or less.

$$


Wagner

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

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