483
FZUS63 KMKX 141357
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
857 AM CDT Mon Jul 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...

South to southwesterly winds gradually pick up across Lake
Michigan today as high pressure around 30.0 inches pushes further
east. Southerly winds continue to increase Tuesday into Wednesday
ahead of a developing low pressure around 29.7 inches. Low
pressure looks to track across WI and central portions of Lake
Michigan through Wednesday night. Will see shower and
thunderstorms accompany this low as it pushes through the region.
Then expecting northerly winds behind the departing low pressure
system and stalling front south of the Lake for Thursday into
Friday as high pressure around 30.1 inches builds across the Upper
Great Lakes region.

LMZ261-362-364-366-563-565-567-868-142115-
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-
857 AM CDT Mon Jul 14 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southwest winds 10 to 20 kt. Areas of smoke
through mid morning. Waves 1 to 3 ft.
.TONIGHT...Southwest winds 10 to 20 kt becoming south 10 to
15 kt. Waves 1 to 3 ft.
.TUESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.WEDNESDAY...West winds 10 to 15 kt veering to north 10 to 20 kt.
Chance of showers in the afternoon. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt becoming north
10 to 20 kt. Showers likely. Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 20 kt. Chance of showers. Waves
2 to 4 ft.
.FRIDAY...Northeast winds 10 to 15 kt becoming north 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-142115-
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-
857 AM CDT Mon Jul 14 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...West winds 5 to 10 kt becoming southwest late
this morning, then becoming 10 to 20 kt early this afternoon
becoming south late. Waves 1 to 2 ft.
.TONIGHT...Southeast winds 10 to 15 kt becoming south 5 to 10 kt.
Waves 1 to 2 ft.
.TUESDAY...South winds 5 to 10 kt becoming southeast 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...Southeast winds 10 to 15 kt becoming south 5 to
10 kt. Waves 1 to 3 ft.
.WEDNESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers in the afternoon. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 kt veering to
northwest. Showers likely with a chance of thunderstorms. Waves
1 to 3 ft.
.THURSDAY...Northwest winds 10 to 20 kt becoming north. Chance of
showers. Waves 2 to 4 ft.
.FRIDAY...North winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 2 to 4 ft.

$$

LMZ761-142115-
MAFOR 1416/
MICHIGAN NORTH 13520 14410 11410. Waves 2 feet or less.

MICHIGAN SOUTH 11510 12410 11310 11410 12400 11410. Waves 2 feet
or less.

$$


Gehring

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

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