National Weather Service Weather Forecast Office

• Home
• Site Map
• News
• Organization
• Search for: NWS All NOAA 

000
FZUS63 KMKX 200202
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
902 PM CDT Fri Apr 19 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 of 30.3 inches over the central USA and deepening
low pressure across northern Quebec will maintain brisk west winds
over Lake Michigan through Saturday morning. Lighter west winds
will then prevail Saturday afternoon and Sunday as high pressure
approaches from the west. Light and variable winds will then occur
with the passage of the high Sunday night. Breezy south winds will
then develop for Monday into Tuesday as low pressure approaches
the northern Great Lakes from Canada.


LMZ080-669-671-673-675-777-779-870-872-874-876-878-200945-
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-
902 PM CDT Fri Apr 19 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...West winds 15 to 25 kt. Waves 4 to 7 ft
occasionally to 9 ft.
.SATURDAY...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...West winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY NIGHT...West winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 2 to 4 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft building to 3 to 5 ft.
.MONDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt.
Chance of showers. Waves 4 to 6 ft occasionally to 8 ft.
.TUESDAY...Southwest winds to 30 kt. Showers likely. Waves 4 to
7 ft occasionally to 9 ft.
.WEDNESDAY...North winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.

$$

LMZ261-362-364-366-563-565-567-868-200945-
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-
902 PM CDT Fri Apr 19 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...West winds 15 to 25 kt. Isolated rain showers
through early evening. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...West winds 15 to 25 kt. Isolated snow showers in the
morning. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...West winds 15 to 25 kt. Waves 3 to 5 ft.
.SUNDAY NIGHT...Northeast winds 10 to 20 kt veering to southeast
5 to 10 kt overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.MONDAY...South winds 10 to 15 kt increasing to 15 to 25 kt in
the afternoon. Waves 1 to 2 ft building to 3 to 5 ft.
.MONDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt.
Chance of rain showers. Waves 4 to 6 ft occasionally to 8 ft.
.TUESDAY...South winds to 30 kt becoming west. Rain showers
likely. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ761-200945-
MAFOR 2004/
MICHIGAN NORTH 15630 11620 11610. Waves 3 to 5 feet overnight.
Waves 3 to 6 feet subsiding to 2 to 4 feet Saturday. Waves 1 to 3
feet Saturday evening.

MICHIGAN SOUTH 11640 13630 13620 11610. Waves 3 to 6 feet
overnight. Waves 3 to 6 feet subsiding to 2 to 4 feet Saturday.
Waves 1 to 3 feet Saturday evening.

$$


Gehring

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

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