Great Lakes Forecast
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FZUS63 KMKX 240732
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
232 AM CDT Thu Jun 24 2021

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...

Low pressure of 29.2 inches has settled across the Hudson Bay
region. Meanwhile, broad high pressure of 30.5 inches will be
across the northeast seaboard. In between, gusty south winds will
continue. The strongest winds will occur over the northern third
of the lake, where a Gale Warning remains in effect until 7 AM.

Some thunderstorms may affect the lake this morning. Gusty south
winds should remain in place into tonight, shifting east to northeast
across northern portions of the lake Friday into Saturday. Chances
for showers and thunderstorms will continue during this period, as
low pressure of 29.6 inches moves northeast through the region.

&&

LMZ261-362-364-563-241530-
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 Rock Island Passage to Sturgeon Bay WI-
232 AM CDT Thu Jun 24 2021

STURGEON BAY WI TO POINT BETSIE MI NORTH...

...GALE WARNING IN EFFECT UNTIL 7 AM CDT THIS MORNING...

.TODAY...South winds to 30 kt. A few gale gusts to 35 kt. Chance
of showers and thunderstorms. Waves 7 to 10 ft occasionally to 13
ft subsiding to 6 to 9 ft occasionally to 12 ft.
.TONIGHT...South winds to 30 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft.
.FRIDAY...South winds 10 to 15 kt backing to north. Chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...North winds 10 to 15 kt becoming northeast.
Chance of showers. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 10 to 15 kt becoming south. Chance of
showers. Waves 1 to 2 ft.
.SATURDAY NIGHT...Northwest winds 10 to 15 kt becoming north.
Chance of showers. Waves 1 to 2 ft.
.SUNDAY...North winds 10 to 15 kt becoming west. Chance of
showers. Waves 1 to 2 ft.
.MONDAY...Southwest winds 5 to 10 kt. Chance of showers. Waves
1 ft or less.

$$

LMZ366-565-567-868-241530-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
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-
232 AM CDT Thu Jun 24 2021

STURGEON BAY WI TO POINT BETSIE MI SOUTH TO SHEBOYGAN WI TO
PENTWATER MI...

.TODAY...South winds to 30 kt. Chance of showers and
thunderstorms. Waves 6 to 9 ft occasionally to 12 ft.
.TONIGHT...South winds to 30 kt diminishing to 10 to 20 kt.
Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft.
.FRIDAY...South winds 10 to 15 kt backing to north. Chance of
showers and thunderstorms in the morning, then chance of showers
in the afternoon. Waves 2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...Northeast winds 10 to 15 kt becoming east. Chance
of showers. Waves 1 to 3 ft.
.SATURDAY...Southeast winds 10 to 15 kt veering to southwest
10 to 20 kt. Chance of showers in the morning, then chance of
showers and thunderstorms in the afternoon. Waves 1 to 2 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt diminishing to 10 to
15 kt. Chance of showers. Waves 1 to 2 ft.
.SUNDAY...North winds 10 to 15 kt diminishing to 5 to 10 kt.
Chance of showers. Waves 1 to 2 ft.
.MONDAY...Southwest winds 5 to 10 kt becoming south. Waves nearly
calm.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241530-
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-
232 AM CDT Thu Jun 24 2021

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds to 30 kt diminishing to 15 to 25 kt. Chance
of showers and thunderstorms. Waves 5 to 8 ft occasionally to
10 ft subsiding to 4 to 7 ft occasionally to 9 ft.
.TONIGHT...South winds 15 to 25 kt diminishing to 10 to 20 kt.
Chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.FRIDAY...South winds 15 to 25 kt becoming southwest 10 to 20 kt.
Chance of showers and thunderstorms. Waves 2 to 4 ft subsiding to
1 to 3 ft.
.FRIDAY NIGHT...Southeast winds 10 to 20 kt. Showers likely with
a chance of thunderstorms. Waves 1 to 3 ft.
.SATURDAY...South winds 10 to 20 kt becoming southwest 15 to
25 kt. Showers likely with a chance of thunderstorms. Waves 1 to
3 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt. Chance of showers.
Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 20 kt becoming northwest 10 to 15 kt.
Chance of showers. Waves 1 to 2 ft.
.MONDAY...Southwest winds 5 to 10 kt becoming south. Chance of
showers. Waves 1 ft or less.

$$

LMZ761-241530-
MAFOR 2409/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11450 14440 11440 11430
11420. Chance of showers and thunderstorms. Waves 6 to 10 feet
subsiding to 5 to 8 feet today. Waves 4 to 7 feet subsiding to 2
to 4 feet the rest of tonight.

MICHIGAN SOUTH 13440 13430 11436 11426. Chance of showers and
thunderstorms today. Chance of showers and thunderstorms, then
chance of thunderstorms after midnight this evening. Waves 4 to 7
feet subsiding to 3 to 6 feet today. Waves 3 to 5 feet subsiding
to 2 to 4 feet the rest of tonight.

$$
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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