Great Lakes Forecast
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000
FZUS63 KLOT 240744
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
244 AM CDT Sat Jun 24 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...Weak low pressure of 29.8 inches over eastern Lake
Superior will drift southeast across southwestern Ontario over the
weekend... while high pressure of 30.3 inches builds from the
northern to the central Plains states. This will result in a
persistent west to northwest winds across the western Great Lakes
region. The high will eventually settle into the lower Missouri
and lower Ohio Valleys by late Monday...with weaker ridging
averaging 30.1 inches extending north across the western Lakes by
Tuesday. Low pressure of 29.4 inches will eventually develop
across the northern Plains and will move to the northern Lakes by
Thursday.

LMZ261-362-364-366-563-565-567-868-241515-
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-
244 AM CDT Sat Jun 24 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...West winds 10 to 20 kt. Slight chance of showers this
morning...then chance of showers and slight chance of
thunderstorms this afternoon. Waves 1 to 3 ft.
.TONIGHT...Northwest winds 10 to 20 kt. Scattered showers and
thunderstorms in the evening...then scattered showers overnight.
Waves 1 to 3 ft.
.SUNDAY...Northwest winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of showers in the afternoon. Waves 1 to 3 ft
subsiding to 1 to 2 ft.
.SUNDAY NIGHT...Northwest winds 10 to 20 kt becoming north 15 to
25 kt. Chance of showers. Waves 2 to 4 ft.
.MONDAY...North winds 15 to 25 kt diminishing to 10 to 20 kt.
Chance of showers. Waves 2 to 4 ft.
.MONDAY NIGHT...West winds 10 to 20 kt. Waves 1 to 3 ft.
.TUESDAY...West winds 10 to 20 kt becoming southwest. Waves 1 to
2 ft.
.WEDNESDAY...South winds 15 to 25 kt increasing to 30 kt. Chance
of showers and thunderstorms. Waves 3 to 5 ft building to 4 to
7 ft occasionally to 9 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-241515-
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-
244 AM CDT Sat Jun 24 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...Northwest winds 10 to 20 kt becoming west. Waves 2 to
4 ft.
.TONIGHT...West winds 15 to 25 kt. Isolated showers and
thunderstorms in the evening...then isolated showers overnight.
Waves 2 to 4 ft.
.SUNDAY...West winds 15 to 25 kt diminishing to 10 to 20 kt.
Waves 2 to 4 ft.
.SUNDAY NIGHT...West winds 15 to 25 kt becoming northwest. Chance
of showers. Waves 2 to 4 ft.
.MONDAY...Northwest winds 15 to 25 kt. Waves 3 to 5 ft.
.MONDAY NIGHT...Northwest winds 10 to 20 kt. Waves 2 to 4 ft
subsiding to 1 to 3 ft.
.TUESDAY...West winds 10 to 15 kt becoming southwest 10 to 20 kt.
Waves 1 to 2 ft.
.WEDNESDAY...South winds 15 to 25 kt increasing to 30 kt. Chance
of showers and thunderstorms. Waves 3 to 5 ft building to 4 to
7 ft occasionally to 9 ft.

$$

LMZ761-241515-
MAFOR 2409/
MICHIGAN NORTH 14620 11620 13720. Chance of showers today.
Scattered showers and thunderstorms late...Then scattered showers
late this evening. Waves 1 to 3 feet.

MICHIGAN SOUTH 12720 13620 13630. Waves 2 to 4 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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