241
FZUS63 KMKX 221351
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
851 AM CDT Wed May 22 2024

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...

Low pressure around 29.1 inches will track northeastward across
Ontario today, weakening to 29.3 inches. Gusty southwest winds up
to 30 kt will continue through this afternoon, especially over the
northern half of the lake. Light to modest southwest winds will
then prevail over the entire lake for tonight and Thursday.

Winds will become east-southeast on Friday as a low pressure trough
around 29.5 inches approaches from Wisconsin. Winds will shift to
the west in the wake of the trough Friday night. High pressure
around 29.9 inches will overspread the Lake Michigan on Saturday.
Low pressure around 29.3 inches will slide across the Midwest Sunday
and across Lower Michigan Monday.

LMZ261-362-364-366-563-565-567-868-222115-
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-
851 AM CDT Wed May 22 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Southwest winds to 30 kt. Waves 8 to 11 ft
occasionally to 14 ft subsiding to 5 to 8 ft occasionally to
10 ft.
.TONIGHT...Southwest winds to 30 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.
.THURSDAY...Southwest winds 10 to 20 kt increasing to 15 to
25 kt. Waves 2 to 4 ft.
.THURSDAY NIGHT...Southwest winds 10 to 20 kt becoming south 5 to
10 kt overnight. Waves 2 to 4 ft.
.FRIDAY...East winds 10 to 20 kt. Waves 1 to 3 ft building to
2 to 4 ft.
.FRIDAY NIGHT...Southeast winds 10 to 20 kt becoming south 15 to
25 kt. Showers likely with a chance of thunderstorms. Waves 2 to
4 ft.
.SATURDAY...West winds 10 to 20 kt becoming southwest 15 to
25 kt. Waves 2 to 4 ft.
.SUNDAY...East winds 10 to 15 kt becoming northeast. Waves 1 to
2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-222115-
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-
851 AM CDT Wed May 22 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Southwest winds 15 to 25 kt. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft.
.TONIGHT...Southwest winds 10 to 20 kt. Waves 3 to 5 ft subsiding
to 1 to 3 ft.
.THURSDAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...Southeast winds 10 to 15 kt becoming south 5 to
10 kt. Waves 1 to 3 ft.
.FRIDAY...Southeast winds 10 to 20 kt. Waves 1 to 3 ft building
to 2 to 4 ft.
.FRIDAY NIGHT...South winds 10 to 20 kt becoming southwest.
Showers likely with a chance of thunderstorms. Waves 2 to 4 ft.
.SATURDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.SUNDAY...East winds 10 to 15 kt increasing to 10 to 20 kt. Waves
1 to 3 ft.

$$

LMZ761-222115-
MAFOR 2216/
MICHIGAN NORTH 14540 14520. Waves 6 to 10 feet subsiding to 5 to
8 feet this afternoon. Waves 3 to 6 feet subsiding to 1 to 3 feet
tonight. Waves 1 to 3 feet Thursday morning.

MICHIGAN SOUTH 12530 13520 13510. Waves 3 to 6 feet this
afternoon. Waves 2 to 4 feet subsiding to 1 to 3 feet tonight.
Waves 2 feet or less Thursday morning.

$$


Sheppard

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

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