Great Lakes Forecast
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FZUS63 KMKX 120749
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
249 AM CDT Tue Mar 12 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...

South to southwest winds will increase through today as the
pressure gradient strengthens over Lake Michigan. This is due to a
departing surface high and an approaching weak low pressure
around 29.6 inches sliding across Lake Superior. Thursday into
Friday morning, an area of low pressure around 29.6 inches is
forecast to cross Iowa and northern Indiana. This will bring a
period of modest northeast to north winds to Lake Michigan and
building waves.

Another system pushing through south central Canada around 29.4
inches will be coming through Saturday and will bring another
period of breezy southwest winds.

LMZ261-362-364-366-563-565-567-868-121530-
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-
249 AM CDT Tue Mar 12 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds 10 to 20 kt becoming southwest 15 to 25 kt.
Waves 2 to 4 ft building to 3 to 5 ft.
.TONIGHT...Southwest winds 10 to 20 kt becoming west 10 to 15 kt
late in the evening, then becoming northwest after midnight
diminishing to 5 to 10 kt late. Waves 3 to 5 ft subsiding to 2 to
4 ft.
.WEDNESDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt increasing to
10 to 20 kt. Waves 1 to 2 ft building to 2 to 4 ft.
.THURSDAY...Northeast winds 15 to 25 kt. Chance of rain. Waves
3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...Northeast winds to 30 kt becoming north. Chance
of rain. Waves 4 to 7 ft occasionally to 9 ft.
.FRIDAY...North winds 15 to 25 kt. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...Southwest winds 15 to 25 kt. Chance of rain. Waves
3 to 5 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-121530-
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-
249 AM CDT Tue Mar 12 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.TONIGHT...Southwest winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 3 to 5 ft subsiding to 2 to 4 ft.
.WEDNESDAY...North winds 5 to 10 kt becoming northeast 10 to
15 kt, then increasing to 10 to 20 kt late. Chance of rain in the
afternoon. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 10 to 15 kt increasing to
10 to 20 kt. Waves 1 to 3 ft building to 2 to 4 ft.
.THURSDAY...East winds 15 to 25 kt becoming northeast to 30 kt.
Rain. Waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft
occasionally to 9 ft.
.THURSDAY NIGHT...Northeast winds to 30 kt becoming north. Chance
of rain and thunderstorms. Waves 4 to 7 ft occasionally to 9 ft.
.FRIDAY...North winds to 30 kt diminishing to 15 to 25 kt. Waves
4 to 7 ft occasionally to 9 ft.
.SATURDAY...Southwest winds 10 to 20 kt increasing to 15 to
25 kt. Waves 3 to 5 ft.

$$

LMZ761-121530-
MAFOR 1210/
MICHIGAN NORTH 11410 11420 11430 11530 11520 11610 12710. Waves 2
to 4 ft building to 4 to 6 ft occasionally to 8 ft today. Waves 4
to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft tonight.

MICHIGAN SOUTH 11520 13530 11520 12510 11610. Waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft today. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft tonight.

$$


Kuroski

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

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


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