Great Lakes Forecast
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000
FZUS63 KLOT 161950
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
250 PM CDT Sat Sep 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 30.2 inches will remain parked across
the Appalachians and New England into the middle of next week
while weakening slightly to 30.0 inches. Meanwhile, low pressure
of 29.8 inches is over the arrowhead of Minnesota will lift
through Ontario Sunday. High pressure of 30.2 inches will build
into the northern Great Plains Sunday and move to Lake Superior
Monday. Another low of 29.5 inches will meander over the northern
Great Plains and Canadian Prairies Tuesday through Thursday.

LMZ261-362-364-366-563-565-567-868-170330-
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-
250 PM CDT Sat Sep 16 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds 10 to 20 kt increasing to 15 to 25 kt.
Slight chance of showers and thunderstorms overnight. Waves 4 to
6 ft occasionally to 8 ft.
.SUNDAY...Southwest winds 15 to 25 kt veering to northwest 10 to
20 kt. Chance of showers and slight chance of thunderstorms in
the morning...then slight chance of showers and thunderstorms in
the afternoon. Waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft late.
.SUNDAY NIGHT...North winds 10 to 20 kt becoming northeast. Waves
1 to 3 ft.
.MONDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt becoming east. Chance
of showers overnight. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY NIGHT...East winds 10 to 20 kt becoming southeast. Waves
1 to 3 ft.
.WEDNESDAY...Southeast winds 10 to 20 kt becoming south. Waves
2 to 4 ft.
.THURSDAY...North winds 10 to 20 kt becoming northeast 10 to
15 kt. Waves 2 to 4 ft subsiding to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-170330-
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-
250 PM CDT Sat Sep 16 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 10 to 20 kt. Waves 3 to 5 ft.
.SUNDAY...South winds 10 to 20 kt veering to northwest 10 to
15 kt. Slight chance of showers and thunderstorms in the
morning...then chance of showers and thunderstorms in the
afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft late.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt becoming north. Waves
1 to 3 ft.
.MONDAY...Northeast winds 10 to 20 kt. Waves 1 to 3 ft.
.MONDAY NIGHT...East winds 10 to 20 kt becoming southeast. Chance
of showers. Waves 1 to 3 ft.
.TUESDAY...East winds 10 to 20 kt diminishing to 10 to 15 kt.
Chance of showers in the morning. Waves 1 to 3 ft.
.TUESDAY NIGHT...East winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.WEDNESDAY...South winds 10 to 20 kt. Waves 2 to 4 ft.
.THURSDAY...North winds 10 to 20 kt becoming northeast 10 to
15 kt. Waves 1 to 3 ft.

$$

LMZ761-170330-
MAFOR 1621/
MICHIGAN NORTH 12420 13430 11530 11520 11620. Slight chance of
showers and thunderstorms. Waves 4 to 6 feet occasionally to 8
feet.

MICHIGAN SOUTH 15420 11520 11610. Chance of showers and
thunderstorms Sunday. Waves 3 to 5 feet.

$$

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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