601
FZUS63 KMKX 270322
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
1022 PM CDT Sun Jul 26 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...

No major changes to the going forecast this evening.

Patchy dense fog is expected in portions of the central to
northern Lake Michigan through tonight and potentially Monday as
warm moist air moves northward.

Severe storms are possible during the early morning hours within
that warm air mass across Lake Michigan. Waterspouts, very strong
winds, and hail are possible with these storms. Storms will move
north to south across the lake late tonight. Monday, expecting a
cold front to progress north to south across the lake in the
afternoon hours. This will bring the next chances for severe
weather, with strong winds and hail the main threats. Northerly
winds are expected behind the front, with gusts around 30 kt
expected. Gusts to gale force cannot be ruled out as low pressure
deepens to 29.5 inches over the eastern Great Lakes Tuesday. Winds
will remain northerly through Wednesday as high pressure around
30.0 inches builds into the northern Great Lakes, then will become
lighter and more variable into Thursday and Friday as high
pressure builds overhead.

LMZ261-362-364-366-563-565-567-868-270945-
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-
1022 PM CDT Sun Jul 26 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt. Patchy fog. Slight
chance of showers and thunderstorms. Waves 1 to 2 ft.
.MONDAY...Southwest winds 10 to 20 kt. Patchy dense fog in the
morning. Chance of showers and slight chance of thunderstorms in
the morning, then chance of showers and thunderstorms in the
afternoon. Waves 2 to 4 ft.
.MONDAY NIGHT...North winds 10 to 20 kt increasing to 30 kt.
Chance of showers and thunderstorms in the evening. Waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft.
.TUESDAY...North winds to 30 kt. Waves 4 to 7 ft occasionally to
9 ft.
.TUESDAY NIGHT...North winds to 30 kt diminishing to 10 to 20 kt
overnight. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 30 kt in the
afternoon. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...East winds 15 to 25 kt veering to south 5 to
10 kt. Waves 1 to 3 ft subsiding to 1 ft or less.
.THURSDAY...South winds 5 to 10 kt increasing to 10 to 20 kt.
Waves 1 ft or less.
.FRIDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Chance of showers. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-270945-
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-
1022 PM CDT Sun Jul 26 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...South winds 10 to 20 kt becoming southwest.
Slight chance of showers and thunderstorms overnight. Waves 1 to
2 ft.
.MONDAY...Southwest winds 10 to 20 kt becoming south. Chance of
showers and thunderstorms in the morning, then slight chance of
showers and thunderstorms in the afternoon. Waves 2 to 4 ft.
.MONDAY NIGHT...Southwest winds 10 to 20 kt veering to north
15 to 25 kt late in the evening, then increasing to 30 kt after
midnight becoming north to 30 kt late. Chance of showers and
thunderstorms in the evening. Waves 2 to 4 ft building to 5 to
8 ft occasionally to 10 ft.
.TUESDAY...North winds to 30 kt increasing to gales to 35 kt.
Waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft
occasionally to 14 ft.
.TUESDAY NIGHT...North gales to 35 kt diminishing to 10 to 20 kt
overnight. Waves 8 to 11 ft occasionally to 14 ft subsiding to
5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...North winds 10 to 20 kt increasing to 30 kt in the
afternoon. Waves 3 to 5 ft.
.WEDNESDAY NIGHT...North winds 15 to 25 kt becoming northeast
5 to 10 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.THURSDAY...Southeast winds 5 to 10 kt becoming south. Waves 1 to
2 ft.
.FRIDAY...Southwest winds 10 to 15 kt becoming south. Waves 1 to
2 ft.

$$

LMZ761-270945-
MAFOR 2704/
MICHIGAN NORTH 11420 19424 11420 11510 13520 11620 11830. A
chance of showers overnight. A chance of showers Monday morning,
then a chance of showers and thunderstorms Monday afternoon. A
chance of showers and thunderstorms Monday evening. Waves 2 feet
or less overnight. Waves 1 to 3 feet Monday and Monday evening.

MICHIGAN SOUTH 11420 13520 12430 11420 11720. A chance of showers
and thunderstorms Monday morning and Monday evening. Waves 2 feet
or less overnight. Waves 1 to 3 feet Monday and Monday evening.

$$


CMiller

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

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