Great Lakes Forecast
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000
FZUS63 KLOT 261354
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
854 AM CDT Wed Jul 26 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 30.3 inches over New England will
move east off shore tonight. Meanwhile, low pressure of 29.7
inches over the central Plains today will move to central
Illinois by daybreak Thursday, and then to the Mid-Atlantic region
by early Friday. This will assist a cold front down the lake late
tonight and into Thursday morning. High pressure of 30.2 inches
will then build southeast across Lake Michigan on late Friday
night into Saturday, then slowly inch south into early next week.

LMZ261-362-364-366-563-565-567-868-262115-
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-
854 AM CDT Wed Jul 26 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...South winds to 30 kt becoming southwest 15 to
25 kt. Chance of showers and thunderstorms. Waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 6 ft occasionally to
8 ft.
.TONIGHT...Southwest winds 10 to 20 kt becoming west 10 to 15 kt
late in the evening...then veering to northeast overnight. Chance
of showers and thunderstorms. Waves 3 to 5 ft subsiding to 2 to 4
ft.
.THURSDAY...Northeast winds 10 to 20 kt increasing to 15 to 25
kt early in the afternoon. Waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.
.THURSDAY NIGHT...Northeast winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.FRIDAY...Northeast winds 15 to 25 kt. Waves 3 to 6 ft
occasionally to 8 ft.
.FRIDAY NIGHT...Northeast winds 15 to 25 kt becoming north 10 to
20 kt. Waves subsiding to 2 to 4 ft.
.SATURDAY...North winds 10 to 15 kt becoming northwest. Waves
1 to 3 ft.
.SUNDAY...Southwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 2 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-262115-
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-
854 AM CDT Wed Jul 26 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...South winds 10 to 20 kt. Chance of showers and
slight chance of thunderstorms this afternoon. Waves 3 to 5 ft.
.TONIGHT...South winds 10 to 20 kt becoming southwest 10 to 15 kt
late in the evening, then backing to northeast 10 to 15 kt
overnight. Showers and thunderstorms likely. Waves 2 to 4 ft.
.THURSDAY...Northeast winds 10 to 15 kt becoming north 15 to
25 kt in the afternoon. Chance of showers and thunderstorms in
the morning. Waves 2 to 4 ft building to 4 to 7 ft occasionally
to 9 ft.
.THURSDAY NIGHT...Northeast winds 15 to 25 kt with occasional
gusts to 30 kt. Waves 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Northeast winds 10 to 20 kt becoming north to 30 kt in
the afternoon. Waves 4 to 7 ft occasionally to 9 ft.
.FRIDAY NIGHT...Northeast winds 15 to 25 kt diminishing to 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft.
.SATURDAY...North winds 10 to 20 kt. Waves 2 to 4 ft.
.SUNDAY...Northwest winds 10 to 15 kt diminishing to 5 to 10 kt.
Waves 1 to 2 ft.

$$
LMZ761-262115-
MAFOR 2615/
MICHIGAN NORTH 11540 12530 11529 11610 11810 11110 11120. Chance
of showers and thunderstorms today and tonight. Waves 5 to 8 feet
occasionally to 10 feet subsiding to 4 to 6 feet occasionally to
8 feet today...subsiding to 2 to 4 feet overnight tonight and
Thursday morning.

MICHIGAN SOUTH 14420 11419 11519 12110. Chance of showers and
thunderstorms tonight and Thursday morning. Waves 3 to 5 feet
today. Waves 2 to 4 feet tonight and Thursday morning.

$$

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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