Great Lakes Forecast
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000
FZUS63 KLOT 221359
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
859 AM CDT Sat Jul 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...Low pressure of 29.7 inches over Iowa will move east
across central Illinois and Indiana through this evening, while
another low center of 29.6 inches forms over northern lower
Michigan on Sunday. This low will move off to the east by Sunday
night. High pressure of 30.2 inches will then spread over the
northern and western Great Lakes Monday night and Tuesday.

LMZ261-362-364-366-563-565-567-868-222130-
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-
859 AM CDT Sat Jul 22 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...Northeast winds increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.TONIGHT...Northeast winds 10 to 15 kt veering to southwest.
Chance of showers and slight chance of thunderstorms. Waves 1 to
2 ft.
.SUNDAY...West winds 10 to 20 kt veering to northeast. Chance of
showers in the morning...then chance of showers and thunderstorms
in the afternoon. Waves 1 to 2 ft.
.SUNDAY NIGHT...Northeast winds 15 to 25 kt becoming north. Waves
3 to 5 ft.
.MONDAY...Northeast winds 10 to 20 kt becoming north. Waves 2 to
4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt veering to southeast
10 to 15 kt. Waves 1 to 3 ft subsiding to 1 to 2 ft.
.TUESDAY...South winds 10 to 20 kt becoming southwest. Waves 1 to
3 ft.
.WEDNESDAY...Southwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 2 to 4 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-222130-
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-
859 AM CDT Sat Jul 22 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...Northwest winds 10 kt or less becoming north.
Waves 1 to 3 ft.
.TONIGHT...North winds 5 to 10 kt backing to west 10 to 15 kt.
Slight chance of showers. Waves 1 to 3 ft.
.SUNDAY...West winds 10 to 15 kt. Waves 1 to 2 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt becoming north 15 to
25 kt. Waves 1 to 3 ft building to 3 to 5 ft.
.MONDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.MONDAY NIGHT...Northeast winds 10 to 20 kt veering to southeast
5 to 10 kt overnight. Waves 1 to 3 ft.
.TUESDAY...Southeast winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt. Chance of showers.
Waves 1 to 3 ft.

$$
LMZ761-222130-
MAFOR 2215/
MICHIGAN NORTH 11100 13110 11210 11410 11510 11620. Chance of
showers tonight and Sunday morning. Waves 1 to 3 ft.

MICHIGAN SOUTH 11700 14800 11700 12610. Waves 1 to 3 ft.

$$


KMD

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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