153
FZUS63 KMKX 141416
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
916 AM CDT Tue Oct 14 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...

No major changes to the going forecast this morning as brreezy
north to northeast winds continue today into tonight as 30.4 inch
high pressure builds into the northern Great Plains. The high
will cross Lake Michigan on Wednesday, allowing winds to taper
across the waters. Winds will become southerly on Thursday as 29.5
inch low pressure develops over the northern Great Plains. The
low will deepen to 29.3 inches near Lake Winnipeg Thursday night
through Friday, allowing winds to increase further across Lake
Michigan. Gusts could approach gale force during this time. Winds
will remain breezy as they become southwest on Saturday. Gusty
northwest winds are expected on Sunday behind a cold front, with
gale force gusts possible.

LMZ261-362-364-366-563-565-567-868-142130-
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-
916 AM CDT Tue Oct 14 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.TONIGHT...North winds 10 to 20 kt becoming northeast. Chance of
rain showers. Waves 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming north. Waves
3 to 5 ft subsiding to 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east.
Waves 1 to 2 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 3 ft building to 3 to 5 ft.
.THURSDAY NIGHT...South winds 10 to 20 kt increasing to 15 to
25 kt. Showers likely. Waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.
.FRIDAY...South winds to 30 kt. Chance of showers. Waves 7 to
10 ft occasionally to 13 ft.
.SATURDAY...Southwest winds 10 to 20 kt increasing to 15 to
25 kt. Chance of showers. Waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-142130-
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-
916 AM CDT Tue Oct 14 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northeast winds 10 to 20 kt becoming north.
Waves 4 to 6 ft occasionally to 8 ft.
.TONIGHT...North winds 15 to 25 kt becoming northeast. Chance of
showers overnight. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers in the morning. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming east.
Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 20 kt. Waves 2 to 4 ft building
to 3 to 5 ft.
.THURSDAY NIGHT...Southeast winds 10 to 20 kt becoming south
15 to 25 kt. Chance of showers. Waves 3 to 5 ft building to 4 to
7 ft occasionally to 9 ft.
.FRIDAY...South winds to 30 kt. Waves 7 to 10 ft occasionally to
13 ft.
.SATURDAY...Southwest winds 10 to 20 kt increasing to 15 to
25 kt. Showers likely. Waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft.

$$

LMZ761-142130-
MAFOR 1416/
MICHIGAN NORTH 14820 11830 11130 11110 11100. A chance of showers
tonight. Waves 3 to 5 feet subsiding to 2 to 4 feet this
afternoon. Waves 2 to 4 feet building to 3 to 5 feet tonight.
Waves 2 to 4 feet subsiding to 1 to 3 feet Wednesday morning.

MICHIGAN SOUTH 11120 11820 11830 12130 11136 11120 11210. Waves 3
to 6 feet.

$$


CMiller

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

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