Great Lakes Forecast
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FZUS63 KLOT 220747
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
247 AM CDT Thu Jun 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...The 29.4 inch low over western Manitoba will weaken
to 29.5 inches as it moves over western Ontario tonight. The low
will reach Quebec Friday morning and its cold front will pass over
the lake tonight into early Friday morning. The remnants of
Tropical Storm Cindy rapidly fill to 29.5 inches over the southern
Mississippi Valley today, and the low fills to 29.7 inches as it
travels east across the Tennessee and Ohio River Valleys through
Saturday morning. High pressure averaging 30.3 inches builds over
the plains Sunday and then spreads over the western Great Lakes
Monday.

LMZ261-362-364-366-563-565-567-868-221530-
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-
247 AM CDT Thu Jun 22 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...South winds 10 to 20 kt becoming west late in the
afternoon. Chance of showers and thunderstorms this
morning...then showers and thunderstorms likely this afternoon.
Waves 2 to 4 ft building to 3 to 5 ft.
.TONIGHT...West winds 10 to 20 kt becoming northwest late.
Showers and thunderstorms likely in the evening...then chance of
showers and thunderstorms overnight. Waves 2 to 4 ft.
.FRIDAY...West winds 10 to 15 kt increasing to 10 to 20 kt. Waves
2 to 4 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.
.SATURDAY...West winds 10 to 20 kt. Chance of showers in the
afternoon. Waves 2 to 4 ft.
.SATURDAY NIGHT...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 20 kt becoming northwest 10 to 15 kt.
Chance of showers. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-221530-
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-
247 AM CDT Thu Jun 22 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...South winds 10 to 20 kt. Slight chance of showers and
thunderstorms this afternoon. Waves 3 to 5 ft.
.TONIGHT...South winds 15 to 25 kt veering to west 10 to 20 kt
overnight. Chance of showers and thunderstorms in the evening...
then showers and thunderstorms likely overnight. Waves 3 to 5 ft.
.FRIDAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to
4 ft subsiding to 1 to 3 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt. Waves 3 to 5 ft.
.SATURDAY...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 3 to 5 ft.
.SATURDAY NIGHT...West winds 10 to 20 kt. Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 20 kt. Waves 2 to 4 ft.

$$

LMZ761-221530-
MAFOR 2209/
MICHIGAN NORTH 11429 11420 11520 11529 11619 13629. Chance of
showers and thunderstorms this morning. Waves 2 to 4 ft building
to 3 to 5 feet today. Waves 2 to 4 feet tonight.

MICHIGAN SOUTH 11420 14420 11430 11439 11539. Chance of showers
and thunderstorms this evening. Waves 3 to 5 feet.

$$


JEE

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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