Great Lakes Forecast
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FZUS63 KLOT 160153
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
853 PM CDT Fri Sep 15 2017

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 will remain over the East
Coast into the middle of next week. Low pressure of 29.6 inches
over southwest Minnesota this evening will lift across the Upper
Midwest and through Ontario Sunday as an associated cold front
pushes across Lake Michigan. High pressure of 30.2 inches will
build into the Northern Plains Sunday and spread across the upper
Great Lakes Monday. Another low of 29.4 inches will drop out of
the Rockies and into the Northern Plains on Tuesday.

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-
853 PM CDT Fri Sep 15 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...South winds 10 to 20 kt increasing to 15 to
25 kt. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...South winds 15 to 25 kt. Waves 4 to 6 ft occasionally
to 8 ft.
.SATURDAY NIGHT...South winds 10 to 20 kt increasing to 15 to
25 kt. Waves 3 to 5 ft.
.SUNDAY...South winds 15 to 25 kt becoming west 10 to 20 kt.
Chance of showers. Waves 3 to 5 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...East winds 10 to 20 kt. Chance of showers. Waves
1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt. Waves 1 to 3 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-
853 PM CDT Fri Sep 15 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...Southeast winds 15 to 25 kt becoming south and
diminishing to 10 to 20 kt. Waves 3 to 6 ft occasionally to 8 ft.
.SATURDAY...South winds 10 to 20 kt becoming southeast. Waves
3 to 5 ft.
.SATURDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Waves 2 to 4 ft.
.SUNDAY...South winds 10 to 20 kt becoming west 10 to 15 kt.
Chance of showers and thunderstorms in the afternoon. Waves 2 to
4 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt becoming north. Waves
1 to 3 ft.
.MONDAY...Northeast winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...East winds 10 to 20 kt becoming southeast. Chance
of showers. Waves 1 to 3 ft.
.TUESDAY...Southeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt. Waves 1 to 3 ft.

$$
LMZ761-160930-
MAFOR 1603/
MICHIGAN NORTH 11420 15430 11420. Waves 4 to 6 feet occasionally
to 8 feet overnight and Saturday subsiding to 3 to 5 feet
Saturday evening.

MICHIGAN SOUTH 10320 11330 11430 14420 12320. Waves 3 to 6 feet
occasionally to 8 feet overnight...3 to 5 feet Saturday and 2 to
4 feet Saturday evening.

$$

RC

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

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



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