Great Lakes Forecast
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FZUS63 KMKX 230150
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
850 PM CDT Fri Sep 22 2023

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...

Patchy dense fog may develop across far northern portions of Lake
Michigan tonight, lingering into daylight tomorrow before
dissipating. Otherwise, persistent and modest easterly winds will
continue this weekend into early next week as high pressure of
30.3 inches remains stationary over Ontario, and low pressure of
29.6 inches meanders through the central Great Plains into
Minnesota.

LMZ261-362-364-366-563-565-567-868-230945-
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-
850 PM CDT Fri Sep 22 2023

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northeast winds 10 to 15 kt becoming
southeast. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 10 to 15 kt backing to northeast
10 to 20 kt. Waves 1 to 3 ft.
.SATURDAY NIGHT...East winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...East winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY NIGHT...East winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.MONDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...East winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt becoming northeast. Waves 1 to
3 ft.
.WEDNESDAY...East winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230945-
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-
850 PM CDT Fri Sep 22 2023

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...East winds 10 to 15 kt becoming southeast
10 to 20 kt. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 10 to 15 kt becoming east. Waves 2 to
4 ft.
.SATURDAY NIGHT...East winds 10 to 20 kt becoming southeast 15 to
25 kt, then becoming east 10 to 20 kt late. Waves 2 to 4 ft.
.SUNDAY...East winds 10 to 20 kt becoming northeast. Waves 2 to
4 ft.
.SUNDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Waves
2 to 4 ft.
.MONDAY...East winds 10 to 20 kt becoming northeast. Waves 2 to
4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Waves
2 to 4 ft.
.TUESDAY...East winds 10 to 20 kt becoming northeast 10 to 15 kt.
Waves 2 to 4 ft.
.WEDNESDAY...East winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ761-230945-
MAFOR 2304/
MICHIGAN NORTH 11210 13310 11210 12120 11220. Waves 1 to 3 ft
overnight. Waves 2 to 4 ft Saturday. Waves 1 to 3 ft Saturday
evening.

MICHIGAN SOUTH 12320 13310 12210 11220. Waves 2 to 4 ft overnight
and Saturday. Waves 1 to 3 ft 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


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