131
FZUS63 KMKX 241356
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
856 AM CDT Fri Apr 24 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...

Areas of fog will continue over the lake today due to relatively
mild and moist air flowing over the cold lake. Modest south to
southeast winds will persist through this morning as low pressure
around 29.6 inches moves eastward through northern Wisconsin. A
period of gusty easterly winds is expected across the northern
tip of the lake through this afternoon. A few gales are expected
in this region through the morning. Low pressure will push
eastward this afternoon into tonight, bringing a cold front and
shifting winds to northwest by late evening. A few thunderstorms
are expected ahead of and along this front, but severe weather is
not anticipated at this time.

Light to breezy northerly winds are expected Saturday as high
pressure builds into Ontario, shifting to become southeasterly and
increasing Sunday night into Monday as low pressure around 29.4
inches tracks northeastward through the central Great Plains and
into Minnesota. Low pressure may track over northern Lake
Michigan into Tuesday morning, with winds becoming westerly as low
pressure exits to the east.

LMZ261-362-364-366-563-565-567-868-242130-
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-
856 AM CDT Fri Apr 24 2026

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southeast winds to 30 kt veering to northwest. A
few gales possible in the far north this morning. Chance of rain
showers and slight chance of thunderstorms. Patchy fog this
afternoon. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.
.TONIGHT...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 3 to 5 ft subsiding to 2 to 4 ft.
.SATURDAY...North winds 10 to 20 kt becoming northeast. Waves
2 to 4 ft.
.SATURDAY NIGHT...Northeast winds 10 to 20 kt becoming east 5 to
10 kt overnight. Waves 2 to 4 ft.
.SUNDAY...East winds 5 to 10 kt becoming northeast 10 to 15 kt.
Waves 1 to 2 ft.
.SUNDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 1 to 2 ft building to 2 to 4 ft.
.MONDAY...East winds 15 to 25 kt increasing to 30 kt. Waves 4 to
6 ft occasionally to 8 ft building to 6 to 9 ft occasionally to
12 ft.
.TUESDAY...Southwest winds to 30 kt. Chance of rain showers.
Waves 8 to 11 ft occasionally to 14 ft subsiding to 6 to 9 ft
occasionally to 12 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-242130-
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-
856 AM CDT Fri Apr 24 2026

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...South winds 10 to 20 kt veering to west 10 to
15 kt. Chance of rain showers and slight chance of thunderstorms
through mid morning, then chance of rain showers this afternoon.
Patchy fog this afternoon. Waves 3 to 5 ft subsiding to 2 to
4 ft.
.TONIGHT...Northwest winds 10 to 15 kt becoming north 10 to
20 kt. Patchy fog. Waves 2 to 4 ft.
.SATURDAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt becoming east 10 to
15 kt. Waves 3 to 5 ft.
.SUNDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to
3 ft.
.SUNDAY NIGHT...East winds 10 to 20 kt. Waves 1 to 3 ft building
to 3 to 5 ft.
.MONDAY...Southeast winds to 30 kt. Chance of thunderstorms.
Waves 4 to 7 ft occasionally to 9 ft building to 7 to 10 ft
occasionally to 13 ft.
.TUESDAY...Southwest winds to 30 kt becoming west 15 to 25 kt.
Waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft.

$$

LMZ761-242130-
MAFOR 2416/
MICHIGAN NORTH 11456 11540 11830 11820 12810 11820 11810. Waves 3
to 6 feet this afternoon. Waves 2 to 4 feet subsiding to 1 to 3
feet tonight. Waves 1 to 3 feet Saturday morning.

MICHIGAN SOUTH 11520 11610 12710 11810 13820. A chance of showers
this afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet this
afternoon. Waves 1 to 3 feet tonight. Waves 2 to 4 feet Saturday
morning.

$$


DDV

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

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