678
FZUS63 KMKX 142046
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
246 PM CST Fri Nov 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...

Southerly winds will increase tonight as low pressure around
29.4 inches crosses northern Minnesota. The low will strengthen
to 29.2 inches as it reaches Lake Huron Saturday afternoon.
Gusty northwest winds will develop on the back side of this low
and along the associated cold front. Winds gusts will approach
gale force Saturday afternoon through Sunday morning, especially
for the northeastern portion of Lake Michigan. The area east of
the south mid lake buoy may also see a few gale force gusts.
There is still lower confidence for gusts exceeding 34 knots
for extended period so we will to continue to hold off on gale
headlines at this time. Winds will diminish early next week as
high pressure of 30.1 inches builds into the Upper Midwest.

LMZ261-362-364-366-563-565-567-868-150430-
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-
246 PM CST Fri Nov 14 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west late in the
morning, then becoming northwest to 30 kt in the afternoon.
Chance of rain showers in the morning, then slight chance of rain
showers in the afternoon. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY NIGHT...Northwest gales to 35 kt. Chance of rain and
snow showers overnight. Waves 7 to 10 ft occasionally to 13 ft.
.SUNDAY...Northwest gales to 35 kt diminishing to 30 kt. Chance
of snow showers. Waves 6 to 9 ft occasionally to 12 ft.
.SUNDAY NIGHT...Northwest winds to 30 kt. Chance of snow. Waves
5 to 8 ft occasionally to 10 ft.
.MONDAY...Northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 3 to 5 ft subsiding to 2 to 4 ft.
.MONDAY NIGHT...Northwest winds 10 to 15 kt becoming north 5 to
10 kt. Waves 1 to 3 ft.
.TUESDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-150430-
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-
246 PM CST Fri Nov 14 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 15 to 25 kt veering to northwest
10 to 20 kt. Slight chance of showers. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft.
.SATURDAY NIGHT...Northwest winds to 30 kt. A few gale force gusts
up to 35 kt possible. Waves 5 to 8 ft occasionally to 10 ft
building to 10 to 14 ft occasionally to 18 ft.
.SUNDAY...Northwest winds to 30 kt. Waves 8 to 12 ft occasionally
to 16 ft subsiding to 7 to 10 ft occasionally to 13 ft.
.SUNDAY NIGHT...Northwest winds to 30 kt diminishing to 15 to
25 kt. Waves 7 to 10 ft occasionally to 13 ft.
.MONDAY...Northwest winds 10 to 20 kt becoming north 10 to 15 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.MONDAY NIGHT...Northeast winds 5 to 10 kt becoming east 10 to
20 kt. Chance of rain. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 20 kt becoming northeast. Chance of
rain. Waves 3 to 5 ft.
.WEDNESDAY...Southeast winds 10 to 15 kt becoming south. Waves
1 to 3 ft.

$$

LMZ761-150430-
MAFOR 1423/
MICHIGAN NORTH 11320 13420 11520 11620 11730 11740. A chance of
showers Saturday morning. Waves 1 to 3 feet building to 3 to 5
feet tonight. Waves 3 to 5 feet Saturday.

MICHIGAN SOUTH 11410 12420 11430 12530 11620 11720. Waves 1 to 3
feet building to 3 to 5 feet tonight. Waves 3 to 6 feet Saturday.

$$


Cronce

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

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