Great Lakes Forecast
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303
FZUS63 KLOT 161337
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
837 AM 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...High pressure of 30.1 inches centered over the
northern Great Lakes region will move to the eastern seaboard by
tonight. Meanwhile, low pressure of 29.7 inches over Nebraska
this morning will move to near or over northern Lake Michigan by
Thursday evening, deepening to 29.5 inches. The trailing cold
front will cross the lake Thursday afternoon through Thursday
evening and the low will continue into southern Ontario on Friday.
Weak high pressure of 29.9 inches will then spread over the lake
on the weekend.

LMZ261-362-364-366-563-565-162200-
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-
837 AM CDT Wed Aug 16 2017

TWO RIVERS WI TO MANISTEE MI NORTH...

.REST OF TODAY...East winds 10 to 15 kt becoming northeast 10 to
20 kt. Waves 1 to 3 ft.
.TONIGHT...East winds 10 to 20 kt becoming southeast 20 to 25 kt.
Chance of showers and slight chance of thunderstorms overnight.
Waves 2 to 4 ft building to 3 to 5 ft.
.THURSDAY...Southeast winds to 30 kt becoming south 15 to 25 kt.
Showers with a chance of thunderstorms in the morning... then
showers likely with a chance of thunderstorms in the afternoon.
Waves 4 to 6 ft occasionally to 8 ft.
.THURSDAY NIGHT...South winds 10 to 20 kt becoming west 20 to 25
kt. Chance of showers and thunderstorms in the evening... then
chance of showers overnight. Waves 4 to 6 ft occasionally to 8 ft.
.FRIDAY...West winds to 30 kt becoming northwest and diminishing
to 15 to 25 kt. Chance of showers in the morning. Waves 4 to 6 ft
occasionally to 8 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt becoming west. Waves
3 to 5 ft subsiding to 1 to 3 ft.
.SATURDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
3 ft.
.SUNDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-162200-
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-
837 AM CDT Wed Aug 16 2017

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TODAY...East winds 10 to 15 kt. Waves 1 to 3 ft.
.TONIGHT...East winds 10 to 20 kt becoming southeast and
increasing to 15 to 25 kt. Chance of showers and thunderstorms in
the evening...then showers likely with a chance of thunderstorms
overnight. Waves 2 to 4 ft building to 3 to 5 ft.
.THURSDAY...South winds 20 to 25 kt becoming southwest 10 to 20
kt. Showers and thunderstorms likely in the morning...then showers
likely with a chance of thunderstorms in the afternoon. Waves 4
to 6 ft occasionally to 8 ft.
.THURSDAY NIGHT...Southwest winds 10 to 20 kt becoming west to
30 kt. Waves 3 to 5 ft building to 4 to 7 ft occasionally to
9 ft.
.FRIDAY...West winds to 30 kt diminishing to 10 to 20 kt in the
afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.FRIDAY NIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.SATURDAY...West winds 10 to 15 kt becoming south. Chance of
showers and thunderstorms. Waves 1 to 2 ft.
.SUNDAY...Southwest winds 10 to 15 kt becoming south 10 to 20 kt.
Waves 1 to 3 ft.

$$
LMZ761-162200-
MAFOR 1615/
MICHIGAN NORTH 11210 11110 11120 12220 12330 11346. Chance of
showers tonight. Chance of thunderstorms Thursday morning. Waves
1 to 3 feet today. Waves 2 to 4 feet building to 3 to 5 feet
tonight. Waves 4 to 6 feet occasionally to 8 feet Thursday
morning.


MICHIGAN SOUTH 13210 11220 11320 12336 11439. Chance of showers
and thunderstorms this evening. Chance of thunderstorms overnight.
Waves 1 to 3 feet today. Waves 2 to 4 feet building to 3 to 5
feet tonight. Waves 4 to 6 feet occasionally to 8 feet Thursday
morning.

$$

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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