284
FZUS63 KMKX 240139
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
839 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 east to northeast winds are expected overnight. Weak high
pressure will remain over Lake Superior while low pressure around
29.7 inches tracks from southern IL to southern lower MI on
Tuesday. This will bring the chance 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.

LMZ261-362-364-366-563-565-567-868-240915-
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-
839 PM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Northeast winds 10 to 20 kt becoming
southeast. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 15 kt becoming northeast. Slight
chance of showers. Waves 2 to 4 ft subsiding to 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...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.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-240915-
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-
839 PM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds 10 to 15 kt becoming east
10 to 20 kt. Chance of showers and slight chance of thunderstorms
overnight. Waves 2 to 4 ft.
.TUESDAY...East winds 10 to 15 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 2 to 4 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt. Chance of showers in
the evening. Waves 2 to 4 ft.
.WEDNESDAY...North winds 10 to 20 kt becoming northwest 10 to
15 kt. Waves 1 to 3 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.

$$

LMZ761-240915-
MAFOR 2404/
MICHIGAN NORTH 11220 11320 13210 13110. Waves 1 to 3 feet
overnight and Tuesday. Waves 2 feet or less Tuesday evening.

MICHIGAN SOUTH 11220 11226 13216 11116 12820. Waves 1 to 3 feet.

$$


Boxell

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

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