405
FZUS63 KMKX 221948
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
248 PM CDT Sun Sep 22 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...

Gusty northerly winds in the northern half will spread southward
through the remainder of the open waters this evening into
tonight, with gusts up to 30 kt expected through the overnight
hours in the southern two-thirds. An occasional gale force gust
is possible in this region as well. Northerly winds will diminish
Monday morning through Monday afternoon as high pressure of 30.1
inches builds into the northern Great Lakes region. As high
pressure pushes eastward into Canada, expect winds to shift to
easterly Monday night into Tuesday. Weak low pressure around 29.8
inches is then expected to develop in the Middle Mississippi
Valley and lift into the eastern Great Lakes on Tuesday, leading
to northeasterly winds. A few thunderstorms are possible across
the southern half as this low develops.

LMZ261-362-364-366-563-565-567-868-230330-
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-
248 PM CDT Sun Sep 22 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...North winds to 30 kt diminishing to 15 to 25 kt.
Slight chance of showers this evening. Waves 6 to 9 ft
occasionally to 12 ft.
.MONDAY...North winds 10 to 20 kt becoming northeast. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east 10 to
15 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.TUESDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Chance of showers in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming north.
Waves 1 to 3 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming west. Waves
1 to 3 ft.
.WEDNESDAY NIGHT...West winds 10 to 15 kt becoming northwest 5 to
10 kt. Waves 1 to 2 ft.
.THURSDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-230330-
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-
248 PM CDT Sun Sep 22 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds to 30 kt. Chance of showers and slight
chance of thunderstorms this evening. Waves 6 to 9 ft
occasionally to 12 ft building to 7 to 10 ft occasionally to
13 ft.
.MONDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...North winds 10 to 20 kt becoming east 10 to
15 kt. Chance of showers overnight. Waves 2 to 4 ft subsiding to
1 to 3 ft.
.TUESDAY...East winds 10 to 15 kt becoming northeast. Chance of
showers. Waves 1 to 3 ft.
.TUESDAY NIGHT...North winds 10 to 15 kt. Chance of showers in
the evening. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 15 kt. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...North winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.THURSDAY...North winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...East winds 10 to 20 kt becoming northeast. Waves 2 to
4 ft.

$$

LMZ761-230330-
MAFOR 2222/
MICHIGAN NORTH 13840 11830 12820 12120. A chance of showers this
evening. Waves 5 to 8 feet tonight. Waves 3 to 5 feet subsiding
to 2 to 4 feet Monday.

MICHIGAN SOUTH 14840 11830 11120 12820. A chance of showers this
evening. Waves 4 to 7 feet building to 6 to 10 feet tonight.
Waves 5 to 8 feet subsiding to 2 to 4 feet Monday.

$$


MH

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

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