Great Lakes Forecast
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000
FZUS63 KLOT 251347
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
847 AM CDT Mon Jun 25 2018

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 Ontario will build
into the central and eastern Great Lakes today then shift to the
New England Coast Tuesday. Low pressure of 29.7 inches over the
Central Plains will lift across Iowa Tuesday and move east across
Lake Michigan early Wednesday. A 30.0 inch ridge will build over
the western Great Lakes Wednesday night. Low pressure of 29.4
inches will form over the central and northern plains late in the
week.

LMZ261-362-364-366-563-565-567-868-252000-
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-
847 AM CDT Mon Jun 25 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.REST OF TODAY...East winds 10 to 20 kt becoming northeast.
Waves 1 to 3 ft building to 2 to 4 ft.
.TONIGHT...Northeast winds 10 to 20 kt becoming southeast. Waves
2 to 4 ft building to 3 to 5 ft.
.TUESDAY...Southeast winds 10 to 20 kt becoming northeast 10 to
15 kt. Chance of showers and thunderstorms in the afternoon.
Waves 3 to 5 ft subsiding to 1 to 3 ft.
.TUESDAY NIGHT...East winds 10 to 15 kt. Showers likely in the
evening, then showers likely with a chance of thunderstorms
overnight. Waves 1 to 3 ft.
.WEDNESDAY...Northeast winds 10 to 15 kt becoming north 10 to
20 kt. Chance of showers in the morning. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 kt becoming southwest.
Waves 1 to 2 ft.
.THURSDAY...Southwest winds 10 to 15 kt. Waves 1 ft or less.
.FRIDAY...South winds 15 to 25 kt. Waves 3 to 5 ft building to
4 to 6 ft occasionally to 8 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-252000-
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-
847 AM CDT Mon Jun 25 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.REST OF TODAY...East winds 10 to 20 kt. Waves 2 to 4 ft.
.TONIGHT...Southeast winds 15 to 25 kt. Slight chance of showers
and thunderstorms overnight. Waves 2 to 4 ft building to 4 to 6
ft occasionally to 8 ft.
.TUESDAY...Southeast winds 10 to 20 kt diminishing to 10 to 15
kt. Chance of showers and thunderstorms. Waves 3 to 5 ft
subsiding to 2 to 4 ft.
.TUESDAY NIGHT...Southeast winds 10 to 20 kt becoming south.
Showers and thunderstorms likely in the evening, then showers
likely with a chance of thunderstorms overnight. Waves 1 to 3 ft.
.WEDNESDAY...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 kt becoming west 5 to
10 kt. Waves 1 to 2 ft.
.THURSDAY...West winds 5 to 10 kt becoming southwest. Waves 1 ft
or less.
.FRIDAY...South winds 10 to 20 kt increasing to 15 to 25 kt.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.

$$
LMZ761-252000-
MAFOR 2515/
MICHIGAN NORTH 11220 12120 11220 14320. Waves 1 to 3 ft
building to 2 to 4 ft today. Waves 2 to 4 ft building to 3 to
5 ft tonight. Waves 3 to 5 ft Tuesday morning.

MICHIGAN SOUTH 13220 14330 11320. Chance of showers and
thunderstorms Tuesday morning. Waves 2 to 4 ft today. Waves 2
to 4 ft building to 4 to 6 ft occasionally to 8 ft tonight.
Waves 3 to 5 ft Tuesday 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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