Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 061421
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
821 AM CST TUE DEC 6 2016

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 HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG
WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES
WHICH WILL OCCASIONALLY BE ENCOUNTERED.

.SYNOPSIS...HIGH PRESSURE OF 30.1 INCHES IS CENTERED OVER NEW
ENGLAND TODAY. LOW PRESSURE OF 29.3 INCHES OVER THE NORTHERN
PLAINS AND UPPER MIDWEST WILL SLOWLY LIFT NORTHEAST TO ONTARIO
TONIGHT...AND THEN TO NEAR JAMES BAY WEDNESDAY. AS THIS LOW
CONTINUES TO QUEBEC...A STRONG 31.0 INCH RIDGE WILL BUILD INTO THE
NORTHERN PLAINS THURSDAY THEN SHIFT TO THE MID MISSISSIPPI VALLEY
FRIDAY WEAKENING TO 30.6 INCHES. THE HIGH WILL BUILD ACROSS THE
MID ATLANTIC COAST SATURDAY AS LOW PRESSURE OF 29.7 INCHES
DEVELOPS OVER THE CENTRAL PLAINS SATURDAY.

LMZ261-362-364-366-563-565-062230-
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-
821 AM CST TUE DEC 6 2016

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH WEDNESDAY
AFTERNOON...

.REST OF TODAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
CHANCE OF RAIN THIS AFTERNOON. WAVES 4 TO 6 FT OCCASIONALLY TO 8
FT.
.TONIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST GALES TO 35 KT.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF SNOW SHOWERS IN THE
EVENING...THEN CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES BUILDING
TO 6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY...WEST GALES TO 35 KT DIMINISHING TO 30 KT. CHANCE OF
SNOW SHOWERS IN THE AFTERNOON. WAVES 7 TO 10 FT OCCASIONALLY TO
13 FT.
.WEDNESDAY NIGHT...WEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. CHANCE OF SNOW SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO
10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...WEST WINDS TO 30 KT BECOMING NORTHWEST. CHANCE OF
SNOW SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY NIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. SNOW SHOWERS LIKELY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT. SNOW SHOWERS LIKELY. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT.
.SATURDAY...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST 10 TO 15 KT.
CHANCE OF SNOW SHOWERS. WAVES 1 TO 2 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-062230-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 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 PENTWATER TO MANISTEE MI 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-
821 AM CST TUE DEC 6 2016

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TODAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING SOUTH EARLY
THIS AFTERNOON...THEN BECOMING WEST TO 30 KT LATE. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8
FT.
.TONIGHT...WEST WINDS TO 30 KT. A FEW GALE FORCE GUSTS TO 35 KT
IN THE EVENING. WAVES BUILDING TO 6 TO 9 FT OCCASIONALLY TO 11
FT.
.WEDNESDAY...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO
4 TO 7 FT OCCASIONALLY TO 9 FT.
.WEDNESDAY NIGHT...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY NIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO
25 KT. SNOW SHOWERS. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.FRIDAY...NORTHWEST WINDS 10 TO 20 KT. CHANCE OF SNOW SHOWERS.
WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SATURDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO 20 KT.
CHANCE OF SNOW SHOWERS. WAVES 2 TO 4 FT.

$$
LMZ761-062230-
MAFOR 0616/
MICHIGAN NORTH 12430 11530 11540 14650. CHANCE OF RAIN SHOWERS
THIS AFTERNOON AND EVENING...THEN CHANCE OF SNOW SHOWERS
OVERNIGHT. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT TODAY BUILDING TO
6 TO 9 FT OCCASIONALLY TO 11 FT TONIGHT. WAVES 7 TO 10 FT
OCCASIONALLY TO 13 FT WEDNESDAY MORNING.

MICHIGAN SOUTH 11320 11420 11640 11640 19650 14640. WAVES 3 TO 5
FT OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT
TODAY...THEN TO 6 TO 9 FT OCCASIONALLY TO 11 FT TONIGHT. WAVES 5
TO 8 FT OCCASIONALLY TO 10 FT WEDNESDAY MORNING.

$$

BMD

EXPERIMENTAL MODERNIZED OPEN LAKE FORECAST IS AVAILABLE ONLINE AT
WEATHER.GOV/LOT/GLFTABLE (ALL LOWER CASE)

GRAPHICAL MARINE FORECASTS ARE AVAILABLE ONLINE AT
WEATHER.GOV/GREATLAKES (ALL LOWER CASE)



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