Great Lakes Forecast
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000
FZUS63 KLOT 160136
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
836 PM CDT Sat Sep 15 2018

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...Surface high pressure averaging 30.1 inches stretching
from the central Great Lakes to New England and southern Quebec
will remain nearly stationary through the weekend. By late Sunday,
low pressure of 29.6 inches will track from the northern Plains
to northern Ontario. A cold front will trail this low, moving
southeast across Lake Michigan Monday night and Tuesday. High
pressure of 30.2 inches will spread across Ontario Tuesday night,
before low pressure develops across the Plains and Upper Midwest
Wednesday into Thursday.

LMZ261-362-364-366-563-565-567-868-160930-
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-
836 PM CDT Sat Sep 15 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 5 to 10 kt becoming southeast.
Patchy fog overnight. Waves 1 ft or less.
.SUNDAY...South winds 5 to 10 kt. Patchy fog in the morning.
Waves 1 ft or less.
.SUNDAY NIGHT...South winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.
.MONDAY...Southwest winds 10 to 15 kt. Waves 1 to 3 ft.
.MONDAY NIGHT...North winds 10 to 20 kt. Waves 1 to 2 ft.
.TUESDAY...North winds 10 to 20 kt. Chance of showers and
thunderstorms in the morning. Waves 2 to 4 ft.
.TUESDAY NIGHT...Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt. Waves 2 to 4 ft.
.THURSDAY...South winds to 30 kt. Showers likely. Waves 4 to 6 ft
occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-160930-
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-
836 PM CDT Sat Sep 15 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Northeast winds around 10 kt becoming east.
Patchy fog overnight. Waves 1 to 2 ft.
.SUNDAY...East winds 5 to 10 kt. Patchy fog in the morning. Waves
1 to 2 ft.
.SUNDAY NIGHT...Southeast winds 5 to 10 kt becoming south. Waves
1 ft or less.
.MONDAY...Southwest winds 5 to 10 kt. Waves nearly calm.
.MONDAY NIGHT...Southwest winds 10 to 15 kt becoming northwest.
Waves 1 to 2 ft.
.TUESDAY...North winds 10 to 15 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY...East winds 10 to 15 kt. Chance of showers and
thunderstorms. Waves 2 to 4 ft.
.THURSDAY...South winds 15 to 25 kt. Chance of showers and
thunderstorms. Waves 4 to 7 ft occasionally to 9 ft.

$$
LMZ761-160930-
MAFOR 1603/
MICHIGAN NORTH 11400 12300 14400 11410. Patchy fog overnight and
Sunday morning. Waves 1 ft or less tonight and Sunday. Waves 1 to
2 ft Sunday evening.

MICHIGAN SOUTH 12100 14200 11200 11300. Patchy fog overnight and
Sunday morning. Waves 1 to 2 ft.

$$

BMD

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

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

NOTICE - Starting Wednesday September 19th 2018 this product will
be issued by NWS Milwaukee. For additional information:

https://www.weather.gov/media/notification/pdfs/scn18-64lake_michigan_transfer.pdf
Or Contact: Ed Fenelon at Edward.Fenelon@noaa.gov



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