687
FZUS63 KMKX 230801
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
301 AM 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...

Gusty north to northeast winds will persist through this afternoon
as low pressure around 29.9 inches continues east toward the New
England States. High pressure around 30.0 inches will build into
the northern Great Plains as the low moves east keep the pressure
gradient tighter over Lake Michigan during this time. Gusts will
taper late this afternoon into tonight as the high pressure moves
over the northern half of the lake before moving toward James Bay.

The next chance for rain arrives Tuesday morning ahead of an upper
level disturbance, with only slight chances (around 40 % or less)
for thunderstorms over the far southern portion of the lake.
Winds will briefly become easterly as this disturbance moves
through before returning to north to northeasterly. A broad area
of 30.0 inch high pressure will be dominant surface feature
regionally through mid to late week, helping to maintain north-
northeast breezes. Additional rain chances arrive by next weekend.


LMZ261-362-364-366-563-565-567-868-231530-
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-
301 AM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...North winds 10 to 20 kt becoming northeast. Waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
.TONIGHT...Northeast winds 10 to 20 kt becoming southeast 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 20 kt becoming north 10 to
15 kt. Chance of showers in the evening. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 15 kt becoming west 10 to 20 kt.
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 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 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-231530-
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-
301 AM CDT Mon Sep 23 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...North winds 10 to 20 kt. Waves 6 to 9 ft occasionally to
12 ft subsiding to 3 to 5 ft.
.TONIGHT...Northeast winds 10 to 20 kt veering to east. Chance of
showers overnight. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt becoming northeast. Chance of
showers. Waves 1 to 3 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers in the evening. Waves 1 to 3 ft.
.WEDNESDAY...North winds 10 to 15 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...North winds 5 to 10 kt. Waves 1 to 3 ft.
.THURSDAY...Northeast winds 10 to 15 kt. Waves 1 to 2 ft.
.FRIDAY...East winds 10 to 20 kt becoming northeast 15 to 25 kt.
Waves 2 to 4 ft.

$$

LMZ761-231530-
MAFOR 2310/
MICHIGAN NORTH 11820 11120 12110 12120 11210 11310. Waves 3 to 6
feet subsiding to 2 to 4 feet today. Waves 2 to 4 feet subsiding
to 1 to 3 feet tonight.

MICHIGAN SOUTH 11830 11120 13810 11110 12210. A chance of showers
overnight. Waves 5 to 8 feet subsiding to 2 to 4 feet today.
Waves 2 to 4 feet subsiding to 1 to 3 feet tonight.

$$


Patterson

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

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