Great Lakes Forecast
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FZUS63 KMKX 131956
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
256 PM CDT Wed Mar 13 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...

Northeasterly winds will increase steadily through tonight as low
pressure of 29.5 inches moves from the Texas Panhandle into
northern Missouri. A few thunderstorms are possible this evening
as a weak warm front lifts into the southern half of Lake
Michigan. Breezy northeast winds are expected Thursday through
Thursday night, shifting to become northerly into Friday as the
low passes by just to the south of Lake Michigan. Dense fog will
also be possible during this time, especially over the southern
third of the lake.

Another area of low pressure of 29.3 inches will cross southern
Ontario Saturday, bringing a round of breezy southwest winds
ahead of the associated cold front, and followed by northwest
winds behind the front. Gusts to 30 knots will be possible.

LMZ261-362-364-366-563-565-567-868-140330-
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-
256 PM CDT Wed Mar 13 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft building to 2 to 4 ft.
.THURSDAY...Northeast winds 15 to 25 kt increasing to 30 kt.
Chance of rain showers in the morning, then rain showers in the
afternoon. Waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.
.THURSDAY NIGHT...North winds to 30 kt diminishing to 15 to
25 kt. Chance of rain showers in the evening. Waves 6 to 9 ft
occasionally to 12 ft.
.FRIDAY...North winds 10 to 20 kt becoming northwest. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.FRIDAY NIGHT...Southwest winds 10 to 15 kt increasing to 15 to
25 kt overnight. Waves 1 to 3 ft building to 2 to 4 ft.
.SATURDAY...Southwest winds to 30 kt becoming west. Chance of
rain. Waves 5 to 8 ft occasionally to 10 ft.
.SATURDAY NIGHT...Northwest winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft subsiding to 4 to 6 ft occasionally to 8 ft.
.SUNDAY...Northwest winds to 30 kt. Waves 4 to 6 ft occasionally
to 8 ft.
.MONDAY...North winds to 30 kt becoming northwest 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-140330-
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-
256 PM CDT Wed Mar 13 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northeast winds 10 to 15 kt becoming east 10 to 20 kt.
Chance of rain showers and slight chance of thunderstorms this
evening, then rain showers likely with slight chance of
thunderstorms overnight. Waves 1 to 3 ft building to 2 to 4 ft.
.THURSDAY...East winds 10 to 20 kt increasing to 15 to 25 kt late
in the morning, then increasing to 30 kt early in the afternoon
becoming north late. Rain showers and slight chance of
thunderstorms. Waves 3 to 5 ft building to 5 to 8 ft occasionally
to 10 ft.
.THURSDAY NIGHT...North winds to 30 kt diminishing to 15 to
25 kt. Chance of rain showers. Waves 7 to 10 ft occasionally to
13 ft.
.FRIDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.FRIDAY NIGHT...West winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.SATURDAY...Southwest winds to 30 kt becoming west gales to
35 kt. Waves 6 to 9 ft occasionally to 12 ft.
.SATURDAY NIGHT...West winds to 30 kt becoming northwest. Waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.SUNDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.MONDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.

$$

LMZ761-140330-
MAFOR 1322/
MICHIGAN NORTH 11110 13120 12130 11136 11146. Waves 2 to 4 ft
building to 3 to 5 ft tonight. Waves 3 to 5 ft building to 5 to 8
ft occasionally to 10 ft Thursday.

MICHIGAN SOUTH 11110 12120 11126 11226 12236 11146. Waves 1 to 3
ft building to 3 to 5 ft tonight. Waves 3 to 5 ft building to 5
to 8 ft occasionally to 10 ft 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


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