005
FZUS63 KMKX 070207
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
907 PM CDT Tue May 6 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...

Winds will remain generally light and variable this evening. A
back door cold front will then bring increasing northerly winds
from north to south overnight into Wednesday morning. North to
northeast winds will remain breezy during the day tomorrow with
gusts of 20 to 30 knots likely, as high pressure of 30.4 inches
centered just south of Hudson Bay in Canada builds southward
towards the area. The highest gusts tomorrow are expected to be
over central and southern portions of the lake. Winds will be a
little lighter Wednesday night into Thursday, but will remain on
the breezy side as the high gradually slides southeastward. Light
winds are then expected Friday as the high of 30.3 inches moves
overhead.

LMZ261-362-364-366-563-565-567-868-070930-
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-
907 PM CDT Tue May 6 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Southwest winds 5 to 10 kt becoming west late
this evening, then becoming northwest after midnight becoming
north 10 to 20 kt late. Waves 1 to 2 ft building to 1 to 3 ft.
.WEDNESDAY...North winds 15 to 25 kt increasing to 30 kt. Waves
2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...North winds to 30 kt becoming northeast 15 to
25 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.THURSDAY...Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east 5 to
10 kt overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY...Southwest winds 5 to 10 kt increasing to 10 to 15 kt in
the afternoon. Waves 1 to 2 ft.
.FRIDAY NIGHT...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.
.SATURDAY...Northwest winds 10 to 20 kt becoming north. Waves
1 to 3 ft.
.SUNDAY...South winds 10 to 15 kt. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-070930-
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-
907 PM CDT Tue May 6 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Southwest winds 5 to 10 kt backing to east.
Waves 1 to 2 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt becoming north to 30 kt.
Waves 1 to 3 ft building to 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY NIGHT...North winds to 30 kt becoming northeast 15 to
25 kt. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.
.THURSDAY...Northeast winds 10 to 20 kt becoming north. Waves
4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.THURSDAY NIGHT...North winds 10 to 20 kt becoming east 10 to
15 kt. Waves 3 to 5 ft.
.FRIDAY...Northeast winds 5 to 10 kt becoming north 10 to 15 kt.
Waves 1 to 3 ft.
.FRIDAY NIGHT...West winds 5 to 10 kt becoming southwest. Waves
1 to 2 ft.
.SATURDAY...West winds 10 to 15 kt veering to north 10 to 20 kt.
Waves 1 to 3 ft.
.SUNDAY...East winds 5 to 10 kt becoming southeast 10 to 15 kt.
Waves 1 to 3 ft.

$$

LMZ761-070930-
MAFOR 0704/
MICHIGAN NORTH 11710 12820 12830 13840. Waves 2 feet or less
overnight. Waves 1 to 3 feet building to 3 to 6 feet Wednesday.
Waves 3 to 6 feet Wednesday evening.

MICHIGAN SOUTH 11500 11400 11120 12830 13840. Waves 1 foot or
less overnight. Waves 2 feet or less building to 4 to 7 feet
Wednesday. Waves 5 to 8 feet Wednesday evening.

$$


DDV

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

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