Great Lakes Forecast
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000
FZUS63 KMKX 242007
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
307 PM CDT Mon Sep 24 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...

Low pressure averaging 29.8 inches over Minnesota will track
across Wisconsin Tuesday morning and northern Lake Michigan
Tuesday afternoon. The associated cold front will cross Lake
Michigan Tuesday evening. A short period of gale force gusts are
possible in the wake of the front Tuesday night. High pressure of
30.1 inches will slide through the Midwest on Wednesday. Then low
pressure of 29.6 inches crossing Ontario Thursday will drag a
cold front through the Upper Great Lakes Thursday night. Southerly
gales are possible ahead of this front over northern Lake Michigan
Thursday.

LMZ261-362-364-366-563-565-567-868-250315-
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-
307 PM CDT Mon Sep 24 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Southeast winds 15 to 20 kt becoming southwest 10 to
20 kt overnight. Slight chance of showers this evening, then
chance of showers overnight. Waves 1 to 3 ft.
.TUESDAY...Southwest winds 10 to 20 kt. Slight chance of showers
in the morning, then chance of showers and thunderstorms in the
afternoon. Waves 2 to 4 ft.
.TUESDAY NIGHT...West winds 10 to 20 kt becoming northwest to
30 kt from late evening on. Showers with a chance of
thunderstorms in the evening, then chance of showers overnight.
Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.WEDNESDAY...Northwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.WEDNESDAY NIGHT...West winds 10 to 20 kt becoming southwest
15 to 25 kt. Waves 3 to 5 ft.
.THURSDAY...Southwest gales to 35 kt. Chance of showers in the
afternoon. Waves 5 to 8 ft occasionally to 10 ft building to 7 to
10 ft occasionally to 13 ft.
.THURSDAY NIGHT...West winds to 30 kt diminishing to 15 to 25 kt.
Chance of showers. Waves 7 to 10 ft occasionally to 13 ft
subsiding to 4 to 7 ft occasionally to 9 ft.
.FRIDAY...West winds 15 to 25 kt. Waves 4 to 6 ft occasionally to
8 ft.
.SATURDAY...Northwest winds 10 to 20 kt. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-250315-
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-
307 PM CDT Mon Sep 24 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Southeast winds 10 to 20 kt becoming southwest 10 to
15 kt overnight. Chance of showers. Waves 1 to 3 ft.
.TUESDAY...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Slight chance of showers in the morning, then slight
chance of showers and thunderstorms in the afternoon. Waves 2 to
4 ft.
.TUESDAY NIGHT...Southwest winds 10 to 20 kt becoming west to
30 kt late in the evening, then becoming northwest after midnight
becoming northwest to 30 kt late. Showers and thunderstorms
likely in the evening. Waves 2 to 4 ft building to 5 to 8 ft
occasionally to 10 ft.
.WEDNESDAY...Northwest winds 15 to 25 kt becoming west 10 to
20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.
.WEDNESDAY NIGHT...West winds 10 to 20 kt becoming southwest.
Waves 2 to 4 ft.
.THURSDAY...Southwest winds to 30 kt. Waves 4 to 6 ft
occasionally to 8 ft building to 4 to 7 ft occasionally to 9 ft.
.THURSDAY NIGHT...West winds to 30 kt becoming northwest 15 to
25 kt. Waves 4 to 7 ft occasionally to 9 ft.
.FRIDAY...Northwest winds 15 to 25 kt. Waves 4 to 6 ft
occasionally to 8 ft.
.SATURDAY...North winds 10 to 20 kt. Chance of showers. Waves
1 to 3 ft.

$$

LMZ761-250315-
MAFOR 2421/
MICHIGAN NORTH 12320 12420 11520 12510 11520. Chance of showers
tonight. Chance of showers and thunderstorms late Tuesday
morning. Waves 2 to 4 ft.

MICHIGAN SOUTH 12320 12420 12510 12410. Chance of showers late
this evening tonight. Waves 2 to 4 ft.

$$


Cronce

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes



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