Great Lakes Forecast
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000
FZUS63 KMKX 151352
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
852 AM CDT Mon Oct 15 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 30.5 inches over eastern Colorado will move into
the southern Plains today. Low pressure of 29.5 inches will move
across northern Ontario tonight and Tuesday. Southwest gales are
possible late tonight, then west to northwest gales possible on
Tuesday, along with high waves. High pressure of 30.4 inches will
spread into Iowa on Wednesday and into the Ohio River Valley on
Thursday. Low pressure around 29.4 inches will slide through
northern Ontario, with the associated cold front tracking across
Lake Michigan Friday night.

LMZ261-362-364-366-563-565-567-868-152115-
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-
852 AM CDT Mon Oct 15 2018

SHEBOYGAN WI TO PENTWATER MI NORTH...

...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.REST OF TODAY...Northwest winds to 30 kt becoming west.
Scattered rain showers through mid morning, then slight chance of
rain showers this afternoon. Waves 5 to 8 ft occasionally to
10 ft.
.TONIGHT...West winds to 30 kt becoming southwest. Occasional gale
force gusts to 35 kt possible late. Waves 5 to 8 ft occasionally
to 10 ft.
.TUESDAY...Southwest gales to 35 kt becoming west to 30 kt. Waves
7 to 10 ft occasionally to 13 ft subsiding to 5 to 8 ft
occasionally to 10 ft.
.TUESDAY NIGHT...Northwest winds to 30 kt. Chance of rain
showers. Waves 5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Northwest winds to 30 kt. Chance of rain showers.
Waves 4 to 7 ft occasionally to 9 ft.
.WEDNESDAY NIGHT...Northwest winds to 30 kt diminishing to 10 to
20 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.
.THURSDAY...West winds 15 to 25 kt becoming southwest to 30 kt.
Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft.
.FRIDAY...Southwest gales to 35 kt. Chance of showers. Waves 7 to
10 ft occasionally to 13 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-152115-
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-
852 AM CDT Mon Oct 15 2018

SHEBOYGAN WI TO PENTWATER MI SOUTH...

...GALE WATCH IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY
AFTERNOON...

.REST OF TODAY...Northwest winds to 30 kt becoming west. Isolated
rain showers through mid morning. Waves 5 to 8 ft occasionally to
10 ft.
.TONIGHT...West winds to 30 kt. A few gale force gusts to 35 knots
late. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 7
ft occasionally to 9 ft.
.TUESDAY...Southwest gales to 35 kt becoming west to 30 kt. Waves
6 to 9 ft occasionally to 12 ft building to 8 to 11 ft
occasionally to 14 ft.
.TUESDAY NIGHT...West winds to 30 kt becoming northwest. Waves
6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...Northwest winds to 30 kt. Waves 6 to 9 ft
occasionally to 12 ft.
.WEDNESDAY NIGHT...Northwest winds to 30 kt diminishing to 10 to
20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft.
.THURSDAY...West winds 10 to 20 kt becoming southwest 15 to
25 kt. Waves 3 to 5 ft.
.FRIDAY...Southwest winds to 30 kt. Waves 6 to 9 ft occasionally
to 12 ft.

$$

LMZ761-152115-
MAFOR 1515/
MICHIGAN NORTH 15640 12550. Scattered rain showers late this
morning, then chance of rain showers this afternoon. Waves 4 to 7
ft occasionally to 9 ft building to 6 to 9 ft occasionally to 12
ft this afternoon. Waves 5 to 8 ft occasionally to 10 ft tonight.
Waves 8 to 11 ft occasionally to 14 ft Tuesday morning.

MICHIGAN SOUTH 11740 12640 12630 11640 12550. Waves 6 to 9 ft
occasionally to 12 ft this afternoon. Waves 5 to 8 ft occasionally
to 10 ft subsiding to 4 to 7 ft occasionally to 9 ft tonight.
Waves 7 to 10 ft occasionally to 13 ft Tuesday morning.

$$


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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