497
FZUS63 KMKX 232028
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
328 PM CDT Mon Sep 23 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...

Modest northeast winds will persist into this evening then veer to
easterly late tonight. Weak high pressure will remain over Lake
Superior while low pressure around 29.7 inches then tracks from
southern IL to southern lower MI on Tuesday. This will bring a
small potential for thunderstorms and waterspouts over southern
Lake MI. The low will also maintain modest east to northeast
winds shifting northerly for Tuesday night and Wednesday as the
low moves away.

LMZ261-362-364-366-563-565-567-868-240315-
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-
328 PM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 15 kt becoming southeast. Waves
1 to 3 ft.
.TUESDAY...East winds 10 to 15 kt becoming northeast 10 to 20 kt.
Slight chance of showers. Waves 1 to 3 ft.
.TUESDAY NIGHT...Northeast winds 10 to 15 kt becoming north.
Waves 1 to 2 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt becoming west. Waves
1 to 3 ft.
.WEDNESDAY NIGHT...Southwest winds 10 to 15 kt becoming west 5 to
10 kt. Waves 1 to 2 ft.
.THURSDAY...Northwest winds 5 to 10 kt becoming north 10 to
15 kt. Waves 1 ft or less.
.THURSDAY NIGHT...East winds 5 to 10 kt increasing to 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 3 ft.
.SATURDAY...East winds 10 to 20 kt becoming northeast. Waves 2 to
4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-240315-
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-
328 PM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northeast winds 10 to 15 kt becoming east 10 to 20 kt.
Chance of showers overnight. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 20 kt becoming northeast. Slight
chance of waterspouts with patchy fog in the morning, then slight
chance of waterspouts in the afternoon. Showers likely with
slight chance of thunderstorms. Waves 1 to 3 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt. Chance of showers in
the evening. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 kt diminishing to
5 to 10 kt. Waves 1 to 3 ft.
.THURSDAY...Northeast winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.
.THURSDAY NIGHT...Northeast winds 10 to 20 kt becoming east.
Waves 2 to 4 ft.
.FRIDAY...East winds 15 to 25 kt becoming northeast to 30 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...East winds 10 to 20 kt becoming northeast. Chance of
showers. Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ761-240315-
MAFOR 2322/
MICHIGAN NORTH 12110 11210 12310 12210 11110. Waves 1 to 3 feet.

MICHIGAN SOUTH 11810 11110 11220 11210 13216 11126. Waves 2 to 4
feet subsiding to 1 to 3 feet tonight. Waves 1 to 3 feet Tuesday.

$$


Gehring

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

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