Great Lakes Forecast
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307
FZUS63 KLOT 271950
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
250 PM CDT Tue Jun 27 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 30.2 inch high is centered over Indiana and its
ridge axis extends north over the lake. The high will continue
east across the Ohio Valley and reach the mid Atlantic coast
Wednesday afternoon. A 29.4 inch low over southern Saskatchewan
will expand south and form a 29.5 inch low over Minnesota
Wednesday evening. The low will stall over Lake Superior early
Thursday morning, and then reach Quebec early Friday morning. Its
cold front will pass over the lake Thursday. A second low will
form over the southern plains early Thursday morning, and it will
pass over the lake at 29.7 inches Friday.

LMZ261-362-364-366-563-565-567-868-280330-
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 Tue Jun 27 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...South winds 10 to 20 kt becoming southwest. Waves 2 to
4 ft.
.WEDNESDAY...South winds to 30 kt. Occasional gale force gusts to
35 kt possible in the afternoon. Slight chance of showers and
thunderstorms in the morning...then showers with thunderstorms
likely in the afternoon. Waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft.
.WEDNESDAY NIGHT...South winds to 30 kt becoming southwest after
midnight. Occasional gale force gusts to 35 kt possible in the
evening. Showers and thunderstorms in the evening...then chance
of showers and thunderstorms overnight. Waves 7 to 10 ft
occasionally to 13 ft.
.THURSDAY...Southwest winds 10 to 20 kt. Waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
.THURSDAY NIGHT...Northwest winds 10 to 15 kt veering to
northeast. Chance of showers overnight. Waves 1 to 3 ft.
.FRIDAY...Northeast winds 10 to 15 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.
.FRIDAY NIGHT...Northwest winds 10 to 15 kt becoming west. Waves
1 to 2 ft.
.SATURDAY...Southwest winds 10 to 20 kt becoming west. Chance of
showers and thunderstorms. Waves 1 to 2 ft.
.SUNDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-280330-
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 Tue Jun 27 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...South winds 10 to 20 kt increasing to 15 to 25 kt late.
Waves 2 to 4 ft.
.WEDNESDAY...South winds to 30 kt. Slight chance of showers and
thunderstorms in the morning...then chance of showers and slight
chance of thunderstorms in the afternoon. Waves 3 to 5 ft building
to 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY NIGHT...South winds to 30 kt becoming southwest.
Showers and thunderstorms likely. Waves 6 to 9 ft occasionally to
12 ft.
.THURSDAY...Southwest winds to 30 kt diminishing to 10 to 20 kt
in the afternoon. Chance of showers and thunderstorms. Waves 4 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft.
.THURSDAY NIGHT...Southwest winds 10 to 20 kt becoming south.
Chance of showers and thunderstorms. Waves 1 to 3 ft.
.FRIDAY...South winds 10 to 20 kt veering to west. Showers and
thunderstorms likely. Waves 2 to 4 ft.
.FRIDAY NIGHT...West winds 10 to 15 kt becoming southwest. Waves
1 to 3 ft.
.SATURDAY...West winds 10 to 20 kt. Chance of showers and
thunderstorms. Waves 1 to 2 ft.
.SUNDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
3 ft.

$$

LMZ761-280330-
MAFOR 2721/
MICHIGAN NORTH 13420 12520 12440 11446 19456. Chance of
thunderstorms Wednesday. Waves 2 to 4 feet tonight. Waves 2 to 4
feet building to 6 to 9 feet occasionally to 12 feet Wednesday.

MICHIGAN SOUTH 14420 11430 13440. Chance of showers Wednesday.
Waves 2 to 4 feet tonight. Waves 3 to 5 feet building to 5 to 8
feet occasionally to 10 feet Wednesday.

$$


JEE

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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