Great Lakes Forecast
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FZUS63 KLOT 150746
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
246 AM 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 stretches across the
Appalachians early this morning and will generally remain across
the region into the middle of next week. Meanwhile, low pressure
of 29.8 inches is over the central and northern Great Plains. The
low will lift across the Upper Midwest to Ontario Saturday into
Sunday. High pressure of 30.2 inches will build into the northern
Great Plains Sunday and move to Lake Superior Monday. Another low
of 29.5 inches will meander over the northern Great Plains and
Canadian Prairies Tuesday and Wednesday.

LMZ261-362-364-366-563-565-567-868-151530-
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-
246 AM CDT Fri Sep 15 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds 10 to 20 kt increasing to 15 to 25 kt. Waves
3 to 5 ft.
.TONIGHT...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 3 to 5 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 southwest 10 to 20 kt.
Waves 3 to 5 ft.
.SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast. Waves
1 to 3 ft.
.MONDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-151530-
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-
246 AM CDT Fri Sep 15 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds 10 to 20 kt. Waves 2 to 4 ft.
.TONIGHT...South winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY...South winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY NIGHT...South winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...South winds 10 to 20 kt becoming west 10 to 15 kt.
Waves 2 to 4 ft.
.SUNDAY NIGHT...Northwest winds 10 to 15 kt becoming north. Waves
1 to 2 ft.
.MONDAY...Northeast winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.
.TUESDAY...Southeast winds 10 to 20 kt diminishing to 10 to
15 kt. Waves 1 to 3 ft.

$$

LMZ761-151530-
MAFOR 1509/
MICHIGAN NORTH 13420 12430 13420. Waves 3 to 5 feet.

MICHIGAN SOUTH 16420. Waves 2 to 4 feet today building to 3 to 5
feet tonight.

$$

BMD

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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