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000
FZUS63 KMKX 210150
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
850 PM CDT Sat Apr 20 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...

Westerly winds continue across Lake Michigan into tonight as high
pressure of 30.4 inches over the northern Great Plains builds
eastward and a weak cold front remains draped across southern
Ontario. Lighter winds expected late tonight into Sunday as high
pressure builds across the Lake. Light and variable winds will
then occur with the passage of the high Sunday night. Breezy south
winds will then develop Monday into Tuesday as low pressure of
29.5 inches approaches the northern Great Lakes from Saskatchewan
and Manitoba. Winds could approach gale force during this time.
Winds shift to northerly Tuesday night as the low passes
eastward.

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210930-
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-
850 PM CDT Sat Apr 20 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...West winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.SUNDAY NIGHT...Southwest winds 10 to 15 kt diminishing to 5 to
10 kt. Waves 1 to 3 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 15 to 25 kt
in the afternoon. Waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft.
.MONDAY NIGHT...South winds 15 to 25 kt increasing to gales to
35 kt overnight. Chance of showers in the evening, then showers
overnight. Waves 4 to 6 ft occasionally to 8 ft building to 7 to
10 ft occasionally to 13 ft.
.TUESDAY...Southwest gales to 35 kt diminishing to 30 kt. Showers
likely in the morning, then showers in the afternoon. Waves 8 to
11 ft occasionally to 14 ft subsiding to 6 to 9 ft occasionally
to 12 ft.
.TUESDAY NIGHT...Northwest winds to 30 kt becoming north. Chance
of rain showers. Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...East winds 10 to 15 kt. Waves 1 to 3 ft.

$$

LMZ261-362-364-366-563-565-567-868-210930-
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-
850 PM CDT Sat Apr 20 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...West winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 20 kt increasing to 15 to 25 kt. Waves
2 to 4 ft.
.SUNDAY NIGHT...North winds 15 to 25 kt becoming northeast 10 to
15 kt late in the evening, then becoming southeast 5 to 10 kt
after midnight becoming south 10 to 15 kt late. Waves 1 to 3 ft
subsiding to 1 to 2 ft.
.MONDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft.
.MONDAY NIGHT...South winds 15 to 25 kt increasing to 30 kt.
Chance of rain showers in the evening, then rain showers
overnight. Waves 4 to 6 ft occasionally to 8 ft building to 6 to
9 ft occasionally to 12 ft.
.TUESDAY...Southwest gales to 35 kt becoming west to 30 kt. Rain
showers. Waves 7 to 10 ft occasionally to 13 ft.
.TUESDAY NIGHT...North winds to 30 kt. Waves 4 to 7 ft
occasionally to 9 ft.
.WEDNESDAY...North winds to 30 kt diminishing to 15 to 25 kt.
Waves 4 to 7 ft occasionally to 9 ft.
.THURSDAY...East winds 10 to 15 kt veering to southwest. Waves
1 to 3 ft.

$$

LMZ761-210930-
MAFOR 2104/
MICHIGAN NORTH 14620 11620 11630 11730 11120. Waves 1 to 3 feet.

MICHIGAN SOUTH 14620 11620 11520 11510 11610. Waves 1 to 3 feet
overnight and Sunday. Waves 2 feet or less Sunday evening.

$$


DDV

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

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