Great Lakes Forecast
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FZUS63 KMKX 190154
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
854 PM CDT Thu Apr 18 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...

A cold front moving across Wisconsin this evening will move across
Lake Michigan during the early morning hours. Modest to breezy
west northwest winds will develop during this time. The breezy
westerly winds will then continue for Friday and Saturday as low
pressure moves from Ontario into Quebec, and high pressure
extends from the northern high plains across the middle portion of
the country. The westerly winds will become lighter on Sunday as
a surface ridge approaches from the west.


LMZ080-669-671-673-675-777-779-870-872-874-876-878-190930-
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-
854 PM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...North winds 10 to 15 kt becoming northwest to
30 kt. Rain showers through early evening, then scattered rain
showers overnight. Waves 2 to 4 ft.
.FRIDAY...Northwest winds 15 to 25 kt becoming west to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.FRIDAY NIGHT...West winds to 25 kt diminishing to 15 to 25 kt.
Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
.SATURDAY...West winds to 25 kt diminishing to 15 to 25 kt. Waves
5 to 8 ft occasionally to 10 ft.
.SATURDAY NIGHT...West winds 10 to 15 kt increasing to 10 to
20 kt. Waves 3 to 5 ft.
.SUNDAY...West winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.SUNDAY NIGHT...Southwest winds 10 to 20 kt becoming west. Waves
2 to 4 ft.
.MONDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 2 to 4 ft.
.TUESDAY...Southwest winds 15 to 25 kt veering to northwest to
30 kt. Rain showers likely. Waves 3 to 5 ft.

$$

LMZ261-362-364-366-563-565-567-868-190930-
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-
854 PM CDT Thu Apr 18 2024

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt veering to west 15 to
25 kt. Scattered rain showers through early evening, then
isolated rain showers overnight. Waves 2 to 4 ft.
.FRIDAY...West winds 10 to 20 kt increasing to 25 kt. Waves 4 to
6 ft occasionally to 8 ft.
.FRIDAY NIGHT...West winds to 25 kt diminishing to 15 to 25 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...West winds 15 to 25 kt. Waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 4 to 6 ft occasionally to 8 ft.
.SUNDAY NIGHT...West winds 15 to 25 kt backing to southeast 10 to
20 kt. Waves 2 to 4 ft.
.MONDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 2 to 4 ft.
.TUESDAY...East winds 15 to 25 kt becoming north to 30 kt. Rain
showers likely. Waves 4 to 6 ft occasionally to 8 ft.

$$

LMZ761-190930-
MAFOR 1904/
MICHIGAN NORTH 11520 19526 13630 13640 11630. Waves 1 to 3 feet
overnight. Waves 2 to 4 feet building to 3 to 5 feet Friday.
Waves 2 to 4 feet Friday evening.

MICHIGAN SOUTH 11720 19726 12730 11630 13640 11630. Waves 1 to 3
feet building to 2 to 4 feet overnight. Waves 3 to 5 feet Friday.
Waves 2 to 4 feet Friday evening.

$$


Gehring

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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