Great Lakes Forecast
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000
FZUS63 KLOT 120144
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
844 PM CDT Wed Jul 11 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 30.2 inches over the central Great
Lakes will slowly move east to New England by Thursday evening. A
29.9 inch trough over the Upper Mississippi Valley Thursday will
slowly shift across Lake Michigan late Friday, stall out over the
central portion of the lake Friday night, and then dissipate.
Another trough will move into the central Great Plains Sunday and
Sunday night as high pressure of 30.1 inches builds over
southeast Ontario.

LMZ261-362-364-366-563-565-567-868-120930-
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-
844 PM CDT Wed Jul 11 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TONIGHT...Variable winds 5 to 10 kt becoming southeast
late this evening, and then becoming south 10 to 20 kt late.
Waves 1 to 3 ft.
.THURSDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Slight chance of showers and thunderstorms in the afternoon.
Waves 2 to 4 ft building to 3 to 5 ft.
.THURSDAY NIGHT...South winds 15 to 25 kt becoming southwest.
Showers and thunderstorms likely. Waves 4 to 7 ft occasionally to
9 ft.
.FRIDAY...Southwest winds 10 to 20 kt. Chance of showers and
thunderstorms in the morning. Waves 4 to 6 ft occasionally to
8 ft subsiding to 2 to 4 ft.
.FRIDAY NIGHT...Southwest winds 5 to 10 kt becoming south. Chance
of showers and thunderstorms in the evening. Waves 1 to 3 ft.
.SATURDAY...South winds 5 to 10 kt becoming southwest. Waves 1 to
2 ft.
.SATURDAY NIGHT...South winds 10 to 15 kt becoming southeast.
Waves 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...West winds 10 to 15 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-120930-
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-
844 PM CDT Wed Jul 11 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TONIGHT...East winds 10 to 15 kt becoming southeast
10 to 20 kt late. Waves 1 to 2 ft.
.THURSDAY...South winds 10 to 20 kt. Waves 1 to 2 ft building to
3 to 5 ft.
.THURSDAY NIGHT...South winds 10 to 20 kt. Chance of showers and
thunderstorms overnight. Waves 3 to 5 ft subsiding to 2 to 4 ft.
.FRIDAY...South winds 10 to 20 kt. Chance of showers and
thunderstorms. Waves 2 to 4 ft.
.FRIDAY NIGHT...South winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.
.SATURDAY...South winds 5 to 10 kt becoming southeast. Waves 1 ft
or less.
.SATURDAY NIGHT...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.
.SUNDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...Southwest winds 10 to 20 kt becoming west 10 to 15 kt.
Chance of showers and thunderstorms. Waves 1 to 3 ft.

$$
LMZ761-120930-
MAFOR 1203/
MICHIGAN NORTH 10900 11300 11310 14420 12430. Chance of showers
and thunderstorms Thursday evening. Waves 1 to 3 ft overnight.
Waves 2 to 4 ft building to 3 to 5 ft Thursday. Waves 4 to 7 ft
occasionally to 9 ft Thursday evening.

MICHIGAN SOUTH 11210 11310 11320 14420 11420. Waves 1 to 2 ft
overnight. Waves 1 to 2 ft building to 3 to 5 ft Thursday. Waves
3 to 5 ft Thursday evening.

$$


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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