Great Lakes Forecast
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000
FZUS63 KLOT 161951
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
251 PM CDT Sun Jul 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...A trough averaging 29.9 inches will continue to shift
to the east tonight, while high pressure of 30.1 inches builds
across the western Great Lakes tonight into Monday...then moving
onward to the Ohio Valley on Tuesday. A trough averaging 29.9
inches will then move from Lake Superior Tuesday and across Lake
Michigan on Wednesday.

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-
251 PM CDT Sun Jul 16 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...North winds 15 to 25 kt becoming northeast 10 to 20
kt...then diminishing to 10 to 15 kt late. Waves 4 to 6 ft
occasionally to 8 feet subsiding to 2 to 4 ft.
.MONDAY...Northeast winds 5 to 10 kt backing to southwest. Waves
1 to 3 ft subsiding to 1 ft or less.
.MONDAY NIGHT...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.
.TUESDAY...Southwest winds 10 to 20 kt becoming south 15 to
25 kt. Waves 2 to 4 ft.
.TUESDAY NIGHT...Southwest winds 15 to 25 kt diminishing to 10 to
20 kt. Chance of showers and thunderstorms in the evening...then
showers and thunderstorms likely overnight. Waves 2 to 4 ft.
.WEDNESDAY...West winds 10 to 15 kt becoming northwest. Chance of
showers and thunderstorms in the morning. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming southeast.
Waves 1 to 2 ft.
.THURSDAY...Southwest winds 5 to 10 kt increasing to 10 to 15 kt.
Waves 1 to 2 ft.
.FRIDAY...South winds 10 to 15 kt becoming southwest. Waves 1 ft
or less.

$$

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-
251 PM CDT Sun Jul 16 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...North winds 15 to 25 kt becoming northeast 10 to 20 kt
after midnight...then diminishing to 10 to 15 kt late. Occasional
gusts to 30 kt through this evening. Waves 5 to 8 ft occasionally
to 10 ft subsiding to 3 to 5 ft.
.MONDAY...East winds 10 to 15 kt becoming north. Waves subsiding
to 1 to 3 ft.
.MONDAY NIGHT...Northeast winds 10 to 15 kt veering to south 5 to
10 kt. Waves 1 to 2 ft.
.TUESDAY...South winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...South winds 10 to 20 kt becoming southwest.
Chance of showers and thunderstorms overnight. Waves 1 to 3 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt becoming west. Chance of
showers and thunderstorms in the morning. Waves 1 to 2 ft.
.WEDNESDAY NIGHT...Northeast winds 5 to 10 kt becoming east 10 to
15 kt. Chance of showers and thunderstorms. Waves 1 to 2 ft.
.THURSDAY...Southeast winds 10 to 15 kt veering to southwest 5 to
10 kt. Chance of showers and thunderstorms. Waves 1 to 2 ft.
.FRIDAY...Southeast winds 10 to 15 kt. Waves 1 to 2 ft.

$$

LMZ761-170330-
MAFOR 1621/
MICHIGAN NORTH 12830 11130 11120 11110 12100 11600. Waves 4 to 6
feet occasionally to 8 feet subsiding to 2 to 4 feet tonight.
Waves 1 to 3 feet Monday.

MICHIGAN SOUTH 13830 11120 11110 11210 11100 11800. Waves 5 to 8
feet occasionally to 10 feet subsiding to 3 to 5 feet tonight.
Waves subsiding to 1 to 3 feet Monday.

$$


Rodriguez

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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