353
FZUS63 KMKX 262000
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
300 PM CDT Fri Apr 26 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 of 29.2 inches over the central Great Plains will
lift into Minnesota tonight, with gusty southeasterly winds
expected. A few gusts late tonight into Saturday morning may
approach gale force, especially in the northern half of the Lake
as the low continues to lift into Lake Superior. Winds will then
become light and northeasterly Saturday night into Sunday morning
as the low exits and a weak cold front drapes across central
portions of the lake. Sunday into Sunday night, winds will become
breezy and southerly south of the front and will become breezy and
easterly to northeasterly north of the front.

A few thunderstorms are possible this evening into tonight across
the southern half of the lake, lifting into the northern half
Saturday morning. Additional rounds of showers and thunderstorms
are expected Saturday and Sunday. A few storms in the afternoon
hours could produce locally gusty winds.

LMZ261-362-364-366-563-565-567-868-270315-
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-
300 PM CDT Fri Apr 26 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southeast winds 15 to 25 kt increasing to 30 kt.
Chance of rain showers this evening, then rain showers and slight
chance of thunderstorms overnight. Waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft.
.SATURDAY...South winds to 30 kt. Chance of rain showers and
slight chance of thunderstorms. Waves 7 to 10 ft occasionally to
13 ft.
.SATURDAY NIGHT...Southwest winds to 30 kt diminishing to 10 to
20 kt late in the evening, then becoming west after midnight
becoming north late. Chance of rain showers. Waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft.
.SUNDAY...Northeast winds 10 to 20 kt. Chance of rain showers in
the morning, then rain showers in the afternoon. Waves 2 to 4 ft
building to 3 to 5 ft.
.SUNDAY NIGHT...East winds to 30 kt becoming southeast. Rain
showers in the evening, then rain showers with a chance of
thunderstorms overnight. Waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.
.MONDAY...South winds to 30 kt. Showers likely. Waves 5 to 8 ft
occasionally to 10 ft.
.MONDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Chance of rain showers. Waves 4 to 7 ft occasionally to
9 ft subsiding to 3 to 5 ft.
.TUESDAY...Southwest winds 10 to 20 kt becoming south. Waves 2 to
4 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt. Chance of showers.
Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-270315-
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-
300 PM CDT Fri Apr 26 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southeast winds 15 to 25 kt becoming south to 30 kt.
Rain showers likely with slight chance of thunderstorms this
evening, then rain showers likely with a chance of thunderstorms
overnight. Waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.
.SATURDAY...South winds to 30 kt. Chance of showers and slight
chance of thunderstorms in the morning. Waves 6 to 9 ft
occasionally to 12 ft.
.SATURDAY NIGHT...South winds 15 to 25 kt becoming southwest
10 to 20 kt. Showers likely with a chance of thunderstorms
overnight. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.SUNDAY...Southeast winds 10 to 20 kt becoming south. Rain
showers likely with a chance of thunderstorms in the morning,
then chance of rain showers in the afternoon. Waves 2 to 4 ft
building to 3 to 5 ft.
.SUNDAY NIGHT...South winds 10 to 20 kt increasing to 15 to
25 kt. Rain showers likely in the evening, then rain showers with
a chance of thunderstorms overnight. Waves 4 to 6 ft occasionally
to 8 ft.
.MONDAY...South winds 15 to 25 kt increasing to 30 kt. Showers
likely. Waves 5 to 8 ft occasionally to 10 ft.
.MONDAY NIGHT...Southwest winds 15 to 25 kt becoming west 10 to
20 kt. Chance of showers. Waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft.
.TUESDAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt becoming west. Chance of
showers. Waves 2 to 4 ft.

$$

LMZ761-270315-
MAFOR 2622/
MICHIGAN NORTH 11330 11336 12346 11340 13450. Waves 1 to 3 feet
building to 4 to 7 feet tonight. Waves 5 to 9 feet building to 7
to 10 feet Saturday.

MICHIGAN SOUTH 11336 12346 11446 14440. A chance of thunderstorms
overnight. Waves 2 to 4 feet building to 4 to 7 feet tonight.
Waves 5 to 8 feet Saturday.

$$


MH

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

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