Great Lakes Forecast
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000
FZUS63 KMKX 201352
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
852 AM CDT Sat Apr 20 2019

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 29.5 inches over Pennsylvania will move into
western New York this evening while weakening to 29.7 inches.
Brisk northerly winds will continue over southern Lake Michigan
into this afternoon. Meanwhile, weak high pressure of 29.9 inches
will move into lower Michigan today, then into the northeastern
part of the country tonight and Sunday. This will bring light
winds for tonight, with south winds gradually increasing on
Sunday. Low pressure of 29.7 inches should then move from Kansas
to lower Michigan Sunday night through Tuesday. Winds may be
gusty at times during this period, becoming north on Tuesday.

LMZ261-362-364-366-563-565-567-868-202130-
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-
852 AM CDT Sat Apr 20 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northeast winds 10 to 20 kt becoming north.
Waves 2 to 4 ft.
.TONIGHT...North winds 10 to 20 kt becoming west 5 to 10 kt late
in the evening, then becoming south 10 to 15 kt after midnight.
Waves 2 to 4 ft subsiding to 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt becoming southeast 10 to 20 kt.
Waves 2 to 4 ft.
.SUNDAY NIGHT...East winds 10 to 20 kt becoming southeast. Chance
of rain overnight. Waves 2 to 4 ft.
.MONDAY...East winds 10 to 20 kt becoming northeast. Chance of
rain. Waves 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming north.
Chance of rain. Waves 3 to 5 ft.
.TUESDAY...North winds 10 to 20 kt. Waves 3 to 5 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-202130-
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-
852 AM CDT Sat Apr 20 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...North winds to 30 kt diminishing to 15 to 25 kt.
Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft.
.TONIGHT...North winds 10 to 20 kt diminishing to 5 to 10 kt
after midnight then backing south late. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 2 to 4 ft.
.SUNDAY NIGHT...South winds 10 to 20 kt. Waves 2 to 4 ft.
.MONDAY...South winds 10 to 20 kt. Chance of rain in the
afternoon. Waves 2 to 4 ft.
.MONDAY NIGHT...South winds 10 to 20 kt veering to northwest.
Chance of rain. Waves 2 to 4 ft building to 3 to 5 ft.
.TUESDAY...North winds 10 to 20 kt increasing to 15 to 25 kt.
Chance of rain. Waves 3 to 5 ft.
.WEDNESDAY...Northeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 2 to 4 ft.

$$

LMZ761-202130-
MAFOR 2015/
MICHIGAN NORTH 13820 11710 11500 11400 12410. Waves 2 to 4 ft
subsiding to 1 to 3 ft this afternoon through Sunday morning.

MICHIGAN SOUTH 12840 11830 11820 11810 11500 12410. Waves 5 to 8
ft occasionally to 10 ft subsiding to 4 to 7 ft occasionally to 9
ft this evening, and 1 to 3 ft Sunday morning.

$$


Cronce

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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