Great Lakes Forecast
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000
FZUS63 KLOT 170148
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
848 PM CDT Wed Aug 16 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...Low pressure of 29.6 inches over southern Minnesota
will deepen to 29.5 inches as it moves over the western Great
Lakes Thursday night. The low`s cold front will sweep across the
lake Thursday evening and night. The low will continue northeast
across Quebec through the weekend. Weak high pressure of 29.9
inches will then spread over the lake on the weekend.

LMZ261-362-364-366-563-565-170930-
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-
848 PM CDT Wed Aug 16 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TONIGHT...East winds 10 to 20 kt becoming southeast
15 to 25 kt after midnight...then increasing to 30 kt late.
Showers likely with a chance of thunderstorms overnight. Waves
2 to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...Southeast winds to 30 kt becoming south 15 to 25 kt.
Showers likely with a chance of thunderstorms in the morning...
then chance of showers and thunderstorms in the afternoon. Waves
4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...South winds 15 to 25 kt becoming west to 30 kt.
Chance of showers and thunderstorms in the evening... then chance
of showers overnight. Waves 4 to 7 ft occasionally to 9 ft.
.FRIDAY...Northwest winds to 30 kt diminishing to 15 to 25 kt.
Chance of showers in the morning. Waves 4 to 7 ft occasionally to
9 ft subsiding to 3 to 5 ft.
.FRIDAY NIGHT...Northwest winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 2 to 4 ft.
.SATURDAY...West winds 10 to 15 kt becoming southwest 10 to
20 kt. Waves 1 to 2 ft.
.SATURDAY NIGHT...Southwest winds 10 to 20 kt. Waves 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 1 to 3 ft building to 2 to 4 ft.
.MONDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-170930-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 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 Pentwater to Manistee MI 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-
848 PM CDT Wed Aug 16 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TONIGHT...Southeast winds 10 to 20 kt increasing to
15 to 25 kt after midnight...then becoming south. Chance of
showers and slight chance of thunderstorms. Waves 1 to 2 ft
building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY...South winds 15 to 25 kt becoming southwest late.
Chance of showers and thunderstorms. Waves 4 to 7 ft occasionally
to 9 ft.
.THURSDAY NIGHT...Southwest winds to 30 kt becoming west. Chance
of thunderstorms in the evening. Waves 4 to 7 ft occasionally to
9 ft building to 5 to 8 ft occasionally to 10 ft.
.FRIDAY...West winds to 30 kt diminishing to 15 to 25 kt. Waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.SATURDAY...Northwest winds 10 to 15 kt becoming southwest. Waves
1 to 2 ft.
.SATURDAY NIGHT...South winds 10 to 15 kt becoming southwest.
Waves 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 20 kt becoming south. Waves 1 to
3 ft.
.MONDAY...Southwest winds 10 to 20 kt becoming south. Waves 1 to
3 ft.

$$

LMZ761-170930-
MAFOR 1703/
MICHIGAN NORTH 11220 11336 11346 12346 12340 11330. Waves 2 to 4
ft building to 4 to 7 ft tonight and continuing Thursday.

MICHIGAN SOUTH 12320 11330 12430 12530 11640. Waves 2 to 4
ft building to 4 to 7 ft tonight and continuing Thursday.

$$

- Izzi

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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