Great Lakes Forecast
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FZUS63 KMKX 271952
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
252 PM CDT Wed Mar 27 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 29.4 inches over northwestern Ontario will
continue to lift northward into the Hudson Bay tonight, leading to
southwest winds slowly diminishing across the open waters from
south to north tonight through Thursday. Thursday afternoon, high
pressure around 30.1 inches will build into Lake Michigan and
allow for winds to become light and variable Thursday night
through Friday. An area of low pressure around 29.8 inches
approaches the area Friday night, leading to winds shifting to
easterly before shifting northwesterly as the low sinks into the
Ohio Valley on Saturday.


LMZ261-362-364-366-563-565-567-868-280330-
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-
252 PM CDT Wed Mar 27 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...West winds to 30 kt diminishing to 15 to 25 kt. Slight
chance of snow showers this evening. Waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.THURSDAY NIGHT...West winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 2 to 4 ft.
.FRIDAY...Northwest winds 10 to 15 kt becoming west. Waves 1 to
3 ft.
.FRIDAY NIGHT...East winds 5 to 10 kt increasing to 10 to 15 kt.
Chance of rain. Waves 1 to 2 ft.
.SATURDAY...East winds 10 to 15 kt becoming northeast 10 to
20 kt. Chance of rain and snow. Waves 1 to 3 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt becoming northwest.
Waves 1 to 3 ft.
.SUNDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.MONDAY...East winds 10 to 20 kt becoming northeast 15 to 25 kt.
Chance of rain. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-280330-
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-
252 PM CDT Wed Mar 27 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY...West winds 10 to 20 kt. Waves 3 to 5 ft.
.THURSDAY NIGHT...West winds 10 to 15 kt veering to north. Waves
1 to 3 ft.
.FRIDAY...North winds 5 to 10 kt becoming northeast 10 to 15 kt.
Waves 1 to 3 ft.
.FRIDAY NIGHT...East winds 10 to 15 kt increasing to 10 to 20 kt.
Rain likely in the evening, then rain overnight. Waves 1 to 3 ft.
.SATURDAY...East winds 10 to 20 kt backing to north. Chance of
rain. Waves 2 to 4 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...Northeast winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...East winds 15 to 25 kt. Rain likely. Waves 3 to 5 ft.

$$

LMZ761-280330-
MAFOR 2722/
MICHIGAN NORTH 12640 14630 11630 11620. Waves 5 to 8 feet
subsiding to 3 to 6 feet tonight. Waves 3 to 6 feet subsiding to
2 to 4 feet Thursday.

MICHIGAN SOUTH 13630 14620 11620. Waves 3 to 5 feet subsiding to
2 to 4 feet tonight. Waves 2 to 4 feet Thursday.

$$


MH

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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