000
FZUS63 KMKX 241954
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
254 PM CDT Wed Apr 24 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...

High pressure around 30.4 inches parked over the Great Lakes will
allow for light winds over Lake Michigan tonight through Thursday
night. Low pressure of 29.1 inches developing in the Plains Friday
morning will track to Lake Superior Saturday afternoon. Strong
southeast winds will develop over Lake Michigan Friday afternoon
and become southerly Saturday morning, then diminish Saturday
night. Gales are possible Friday night through Saturday, but
confidence is low due to an inversion and stability from warm air
flowing over the cool water.

A front will become stationary over northern Lake Michigan on
Sunday, so easterly winds along and north of that front are
expected, with southerly winds south of it. Low pressure around
29.5 inches over Iowa Sunday afternoon will track into Ontario
Monday night while weakening to 29.7 inches. Winds will become
westerly over Lake Michigan Monday through Tuesday.

LMZ261-362-364-366-563-565-567-868-250330-
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-
254 PM CDT Wed Apr 24 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then becoming east after midnight becoming
south late. Waves 3 to 5 ft subsiding to 1 to 2 ft.
.THURSDAY...South winds 5 to 10 kt becoming southwest. Waves 1 to
2 ft.
.THURSDAY NIGHT...Southeast winds 5 to 10 kt increasing to 10 to
20 kt. Waves 1 to 2 ft building to 2 to 4 ft.
.FRIDAY...Southeast winds 15 to 25 kt increasing to 30 kt. Waves
4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Southeast gales to 35 kt. Showers with
thunderstorms likely. Waves 6 to 9 ft occasionally to 12 ft.
.SATURDAY...South gales to 35 kt. Showers likely in the morning,
then chance of showers in the afternoon. Waves 7 to 10 ft
occasionally to 13 ft.
.SATURDAY NIGHT...Southwest gales to 35 kt becoming west 15 to
25 kt. Showers and thunderstorms likely. Waves 7 to 10 ft
occasionally to 13 ft.
.SUNDAY...Northeast winds 15 to 25 kt becoming east. Rain showers
and thunderstorms likely. Waves 4 to 6 ft occasionally to 8 ft.
.MONDAY...South winds 15 to 25 kt. Showers likely. Waves 4 to
6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250330-
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-
254 PM CDT Wed Apr 24 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 10 to 20 kt diminishing to 10 to 15 kt
late this evening, then becoming northeast after midnight
becoming east late. Waves 4 to 6 ft occasionally to 8 ft
subsiding to 1 to 3 ft.
.THURSDAY...Southeast winds 5 to 10 kt increasing to 10 to 15 kt
early in the afternoon, then becoming east 10 to 20 kt late.
Waves 1 to 3 ft.
.THURSDAY NIGHT...Northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft.
.FRIDAY...Southeast winds 15 to 25 kt increasing to 30 kt. Rain
showers likely with a chance of thunderstorms in the afternoon.
Waves 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...Southeast gales to 35 kt becoming south. Showers
with thunderstorms likely. Waves 6 to 9 ft occasionally to 12 ft.
.SATURDAY...South gales to 35 kt. Chance of showers and
thunderstorms in the morning, then chance of showers in the
afternoon. Waves 7 to 10 ft occasionally to 13 ft.
.SATURDAY NIGHT...South winds to 30 kt. Showers and thunderstorms
likely. Waves 7 to 10 ft occasionally to 13 ft.
.SUNDAY...South winds to 30 kt. Showers likely with a chance of
thunderstorms. Waves 4 to 6 ft occasionally to 8 ft.
.MONDAY...South winds 15 to 25 kt becoming southwest. Showers
likely. Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ761-250330-
MAFOR 2422/
MICHIGAN NORTH 11120 11110 11200 11300 12400 11410 11510. Waves 2
to 4 feet subsiding to 1 foot or less tonight. Waves 2 feet or
less Thursday.

MICHIGAN SOUTH 11820 11810 11100 11210 12300 11310 11210. Waves 3
to 5 feet subsiding to 1 to 3 feet tonight. Waves 2 feet or less
Thursday.

$$


Cronce

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

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