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000
FZUS63 KLOT 220743
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
243 AM CDT Fri Sep 22 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 across the central and
eastern Great Lakes will hold steady through Monday. Meanwhile,
low pressure of 29.5 inches will lift northeast across the Upper
Midwest on Friday into Saturday. A persistent low pressure trough
averaging 29.8 inches will remain from Minnesota through the
central Plains during the remainder of the weekend. During the
middle of next week, this trough and an associated cold front is
expected to pass across the lake.

LMZ261-362-364-366-563-565-567-868-221515-
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-
243 AM CDT Fri Sep 22 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Southeast winds 10 to 15 kt becoming south 10 to 20 kt
after daybreak, then southwest in the early afternoon. Areas of
fog this morning...then patchy fog this early to mid afternoon.
Waves 1 to 3 ft building to 3 to 5 ft this afternoon.
.TONIGHT...Southwest winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY...South winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...South winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY NIGHT...South winds 10 to 20 kt diminishing to 10 to
15 kt. Waves subsiding to 1 to 3 ft.
.MONDAY...South winds 10 to 15 kt. Waves 1 to 3 ft.
.TUESDAY...South winds 10 to 15 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-221515-
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-
243 AM CDT Fri Sep 22 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds 10 to 15 kt increasing to 10 to 20 kt in the
late morning. Waves 1 to 3 ft.
.TONIGHT...South winds 10 to 20 kt diminishing to 10 to 15 kt in
the late evening. Waves 1 to 3 ft.
.SATURDAY...South winds 10 to 15 kt becoming southeast in the
afternoon. Waves 1 to 3 ft.
.SATURDAY NIGHT...Southeast winds 10 to 15 kt becoming south.
Waves 1 to 3 ft.
.SUNDAY...South winds 10 to 15 kt. Waves 1 to 3 ft.
.SUNDAY NIGHT...Southeast winds 10 to 15 kt becoming south. Waves
1 to 3 ft.
.MONDAY...South winds 10 to 15 kt becoming southeast. Waves 1 to
3 ft.
.TUESDAY...South winds 10 to 15 kt. Waves 1 to 3 ft.

$$

LMZ761-221515-
MAFOR 2209/
MICHIGAN NORTH 11313 12423 14520 11520. Waves 1 to 3 ft building
to 3 to 5 ft this afternoon and continuing tonight.

MICHIGAN SOUTH 12410 14420 12410. Waves 1 to 3 ft.

$$

MTF

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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