Great Lakes Forecast
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
000
FZUS63 KLOT 120836
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Chicago/Romeoville IL
236 AM CST Sun Nov 12 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....High pressure of 30.5 inches centered over New
England will slowly shift offshore today, as a weak trough of low
pressure averaging 30.1 inches and an associated cold front cross
the lake. Another area of high pressure of 30.5 inches will build
across the Great Lakes tonight and Monday, then shift to the Ohio
Valley and New England by midweek, while low pressure of 29.6
inches moves across the western Great Lakes and Ontario.

LMZ261-362-364-366-563-565-567-868-121630-
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-
236 AM CST Sun Nov 12 2017

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TODAY...Northwest winds 5 to 10 kt becoming west. Waves 3 to 5
feet subsiding to 2 to 4 feet.
.TONIGHT...West winds 10 to 15 kt becoming northwest 10 to 20 kt.
Slight chance of rain showers overnight. Waves 1 to 3 feet.
.MONDAY...Northwest winds 10 to 15 kt becoming west 5 to 10 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt becoming south 10 to
20 kt. Waves 1 to 2 ft.
.TUESDAY...South winds to 30 kt. Waves 3 to 5 ft building to 5 to
8 ft occasionally to 10 ft.
.TUESDAY NIGHT...South winds to 30 kt becoming southwest. Rain
showers. Waves 6 to 9 ft occasionally to 12 ft.
.WEDNESDAY...Southwest winds to 30 kt becoming northwest. Rain
showers. Waves 6 to 9 ft occasionally to 12 ft.
.THURSDAY...North winds to 30 kt becoming northeast 10 to 15 kt
in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-121630-
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-
236 AM CST Sun Nov 12 2017

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TODAY...West winds 10 to 15 kt becoming northwest. Rain this
morning...then rain likely this afternoon. Waves 2 to 4 ft
subsiding to 1 to 2 ft.
.TONIGHT...Northwest winds 10 to 15 kt increasing to 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY...Northwest winds 10 to 15 kt diminishing to 5 to 10 kt
early in the afternoon...then becoming west late. Waves 1 to 3 ft
subsiding to 1 to 2 ft.
.MONDAY NIGHT...South winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.
.TUESDAY...South winds to 30 kt. Waves 2 to 4 ft building to 4 to
6 ft occasionally to 8 ft.
.TUESDAY NIGHT...South winds to 30 kt. Rain showers likely. Waves
5 to 8 ft occasionally to 10 ft.
.WEDNESDAY...Southwest winds to 30 kt becoming west. Rain
showers. Waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to
7 ft occasionally to 9 ft.
.THURSDAY...North winds 15 to 25 kt becoming east 10 to 15 kt in
the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft.

$$

LMZ761-121630-
MAFOR 1210/
MICHIGAN NORTH 11710 12700 11600 12610 11710 11720. Waves 3 to 5
feet subsiding to 2 to 4 feet today. Waves 1 to 3 feet tonight.

MICHIGAN SOUTH 11610 11716 11616 11606 12710 12720. Chance of
rain early this morning. Waves 2 to 4 feet subsiding to 1 to 2
ft today. Waves 1 to 3 ft tonight.

$$

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

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



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.