Great Lakes Forecast
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000
FZUS63 KMKX 181951
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
251 PM CDT Thu Apr 18 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 Lake Huron will move into
southern Quebec, Canada tonight while another low of 29.4 inches
will move from the lower Mississippi River Valley through the Ohio
River Valley for tonight through Friday. This will bring
northerly gales and high waves to southern Lake Michigan late
tonight and Friday. Brisk northerly winds will continue over
southern Lake Michigan Friday night into Saturday morning followed
by light winds and weak high pressure of 29.8 inches for Saturday
afternoon and night.

LMZ261-362-364-366-563-565-567-868-190315-
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-
251 PM CDT Thu Apr 18 2019

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...North winds 10 to 20 kt increasing to 30 kt. Slight
chance of rain this evening. Waves 2 to 4 ft building to 5 to
8 ft occasionally to 10 ft.
.FRIDAY...North winds to 30 kt. Waves 6 to 9 ft occasionally to
12 ft.
.FRIDAY NIGHT...North winds to 30 kt diminishing to 10 to 20 kt.
Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...North winds 15 to 25 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt becoming southwest 10 to
15 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 20 kt. Waves 1 to 2 ft building
to 2 to 4 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast.
Chance of rain showers. Waves 3 to 5 ft.
.MONDAY...Northeast winds 10 to 20 kt increasing to 15 to 25 kt.
Chance of rain showers. Waves 3 to 5 ft.
.TUESDAY...Northeast winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-190315-
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-
251 PM CDT Thu Apr 18 2019

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WARNING IN EFFECT FROM 1 AM CDT FRIDAY THROUGH FRIDAY
EVENING...

.TONIGHT...North winds 10 to 20 kt increasing to gales to 35 kt.
Slight chance of rain. Waves 1 to 3 ft building to 6 to 9 ft
occasionally to 12 ft.
.FRIDAY...North gales to 35 kt. Slight chance of rain in the
morning. Waves 8 to 12 ft occasionally to 16 ft.
.FRIDAY NIGHT...North gales to 35 kt diminishing to 30 kt. Waves
8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft
occasionally to 13 ft.
.SATURDAY...North winds to 30 kt. Waves 6 to 9 ft occasionally to
12 ft.
.SATURDAY NIGHT...North winds 10 to 20 kt backing to southwest
10 to 15 kt. Waves 3 to 5 ft subsiding to 1 to 3 ft.
.SUNDAY...South winds 10 to 20 kt. Waves 1 to 2 ft building to
2 to 4 ft.
.SUNDAY NIGHT...Southeast winds 10 to 20 kt. Chance of rain
showers. Waves 3 to 5 ft.
.MONDAY...East winds 10 to 20 kt backing to north 15 to 25 kt.
Chance of rain showers. Waves 3 to 5 ft.
.TUESDAY...Northeast winds 10 to 20 kt. Waves 3 to 5 ft.

$$

LMZ761-190315-
MAFOR 1821/
MICHIGAN NORTH 11720 12830 14840 11840. Waves 2 to 4 ft building
to 6 to 9 ft occasionally to 12 ft tonight. Waves 7 to 10 ft
occasionally to 13 ft Friday.

MICHIGAN SOUTH...GALE WARNING IN EFFECT...11710 11820 11830 11840
14850. Chance of rain early this evening. Waves 2 to 4 ft
building to 7 to 10 ft occasionally to 13 ft tonight. Waves 8 to
12 ft occasionally to 16 ft Friday.

$$


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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