143
FZUS63 KMKX 160842
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
242 AM CST Sun Nov 16 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...

Gusty northwesterly winds continue today as Lake Michigan remains
sandwiched between low pressure around 29.2 inches well to the
east over New England and an incoming high pressure around 30.0
inches from the northern Plains. Wind gusts around 30 kt expected
through the afternoon with periodic, brief gusts to gale force
for eastern waters along MI shoreline. Then as the high pressure
slides eastward across the Upper Midwest overnight into Monday,
winds will ease and gradually shift before the high moves over
Lake Michigan Monday night. Then another low pressure around 29.8
inches pushes in from the Plains across IL for Tuesday and will
bring east-southeasterly winds with the strongest winds over the
southern half of the Lake. Will then see lighter winds into
midweek as another high pressure treks across the Upper Great
Lakes region.

LMZ261-362-364-366-563-565-567-868-161615-
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-
242 AM CST Sun Nov 16 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northwest gales to 35 kt. Chance of snow. Waves 7 to
10 ft occasionally to 13 ft subsiding to 5 to 8 ft occasionally
to 10 ft.
.TONIGHT...Northwest gales to 35 kt diminishing to 30 kt. Chance
of snow in the evening, then slight chance of snow overnight.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.MONDAY...Northwest winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.MONDAY NIGHT...Northwest winds 10 to 20 kt becoming north 5 to
10 kt overnight. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.TUESDAY...East winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of rain. Waves 1 to 3 ft.
.TUESDAY NIGHT...East winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 5 to 10 kt becoming south 10 to
15 kt. Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Chance of rain. Waves 1 to 2 ft building to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-161615-
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-
242 AM CST Sun Nov 16 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northwest winds to 30 kt. Waves 8 to 12 ft occasionally
to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.
.TONIGHT...Northwest winds to 30 kt diminishing to 10 to 20 kt.
Waves 7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.MONDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast.
Chance of rain overnight. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt. Rain likely. Waves 4 to 6 ft
occasionally to 8 ft.
.TUESDAY NIGHT...East winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of rain. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.WEDNESDAY...East winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 2 to 4 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming south 10 to
20 kt. Chance of rain. Waves 1 to 3 ft building to 2 to 4 ft.

$$

LMZ761-161615-
MAFOR 1611/
MICHIGAN NORTH 12750 11740 12750 12740 11730. A chance of snow
today and this evening. Waves 6 to 10 feet subsiding to 5 to 8
feet today. Waves 4 to 7 feet subsiding to 3 to 6 feet tonight.

MICHIGAN SOUTH 13740 11730 12740 12730. Waves 8 to 12 feet
subsiding to 7 to 10 feet today. Waves 6 to 10 feet subsiding to
5 to 8 feet tonight.

$$


Wagner

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

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