Great Lakes Forecast
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000
FZUS63 KLOT 130153
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
853 PM CDT Sun Aug 12 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...
High pressure of 30.1 inches across the western Great Lakes
region will drift to the Ohio Valley through Monday night while
weakening to 30.0 inches. Farther north, an area of low pressure
of 29.6 inches will track eastward across northern Ontario late
Monday, and will trail a cold front across Lake Michigan Tuesday
and Tuesday night. High pressure of 30.0 inches will then build
across the northern Great Lakes on Wednesday as a 29.8 inch low
pressure moves across the middle Mississippi Valley. The low will
track northeastward across southern Lake Michigan on Thursday.

LMZ261-362-364-366-563-565-567-868-130930-
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-
853 PM CDT Sun Aug 12 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...East winds 5 to 10 kt veering south after
midnight. Waves 1 ft or less.
.MONDAY...South winds 5 to 10 kt becoming southwest. Waves 1 ft
or less building to 1 to 2 ft.
.MONDAY NIGHT...South winds 10 to 15 kt becoming southwest. Waves
2 to 4 ft.
.TUESDAY...Southwest winds 10 to 15 kt becoming west 10 to 20 kt.
Chance of showers in the afternoon. Waves 1 to 3 ft.
.TUESDAY NIGHT...North winds 10 to 20 kt. Waves 2 to 4 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming east 10 to
15 kt. Waves 1 to 3 ft.
.THURSDAY...Northeast winds 10 to 15 kt. Waves 1 to 3 ft.
.FRIDAY...North winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-130930-
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-
853 PM CDT Sun Aug 12 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...North winds 5 to 10 kt through late evening
becoming light and variable after midnight. Waves 1 ft or less.
.MONDAY...Variable winds less than 10 kt becoming south 5 to 15
kt in the afternoon. Waves 1 ft or less.
.MONDAY NIGHT...South winds 5 to 10 kt becoming southwest. Waves
1 to 2 ft.
.TUESDAY...Southwest winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.TUESDAY NIGHT...Southwest winds 10 to 15 kt becoming northwest.
Waves 1 to 2 ft building to 2 to 4 ft.
.WEDNESDAY...North winds 10 to 15 kt becoming northeast. Chance
of showers. Waves 2 to 4 ft.
.WEDNESDAY NIGHT...East winds 10 to 15 kt. Chance of showers.
Waves 1 to 3 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Chance of showers. Waves 1 to 3 ft.
.FRIDAY...North winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 1 to 3 ft.

$$
LMZ761-130930-
MAFOR 1303/
MICHIGAN NORTH 11200 11300 13400 13510. Waves 2 ft or less.

MICHIGAN SOUTH 11100 14900 13410. Waves 1 ft or less.

$$

Kluber

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 5th 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 or Ben Schott
at Ben.Schott@noaa.gov


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