335
FZUS63 KMKX 091945
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
245 PM CDT Sun Mar 9 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 southwest winds this afternoon will ease and shift to the
west tonight into Monday morning. Low pressure of around 29.4
inches will track across the Upper Midwest and into Lake Superior
region Monday. Southwest winds will again ramp up through Monday
afternoon with gusts to around 30 knots. Then a cold front will
push across Lake Michigan overnight into Tuesday morning and turn
winds northwesterly. Northerly winds will linger into Tuesday, but
will weaken through the day as high pressure around 30.0 inches
moves across the western Great Lakes region.

Southeast winds are expected for Wednesday and Thursday, with
brisk southerly winds developing Friday as strong low pressure
moves into the upper Mississippi Valley.

LMZ261-362-364-366-563-565-567-868-100315-
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-
245 PM CDT Sun Mar 9 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...West winds to 30 kt diminishing to 5 to 10 kt. Waves
4 to 7 ft occasionally to 9 ft subsiding to 1 to 3 ft.
.MONDAY...South winds 5 to 10 kt increasing to 30 kt. Waves 1 to
3 ft building to 4 to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...South winds to 30 kt becoming west. Waves 5 to
8 ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft.
.TUESDAY...Northwest winds to 30 kt becoming north. Waves 4 to
7 ft occasionally to 9 ft.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast.
Waves 2 to 4 ft subsiding to 1 to 2 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 kt. Waves 2 to 4 ft.
.THURSDAY...East winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.FRIDAY...Southeast winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-100315-
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-
245 PM CDT Sun Mar 9 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southwest winds 15 to 25 kt becoming west 10 to 15 kt.
Waves 3 to 5 ft subsiding to 2 to 4 ft.
.MONDAY...Southwest winds 5 to 10 kt becoming south 10 to 20 kt.
Waves 2 to 4 ft.
.MONDAY NIGHT...South winds 15 to 25 kt becoming southwest. Waves
4 to 7 ft occasionally to 9 ft.
.TUESDAY...Northwest winds 15 to 25 kt becoming north. Waves 4 to
7 ft occasionally to 9 ft.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt. Waves 3 to 5 ft.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.THURSDAY...East winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.FRIDAY...South winds 10 to 20 kt becoming southeast 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.

$$

LMZ761-100315-
MAFOR 0922/
MICHIGAN NORTH 11640 12620 11600 11500 11410 11420 11430. Waves 3
to 6 feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet
building to 2 to 4 feet Monday.

MICHIGAN SOUTH 12530 11630 11610 12500 11410 11420. Waves 3 to 5
feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Monday.

$$


Boxell

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

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