Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 070255
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
855 PM 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...THE 29.4 INCH LOW OVER SOUTHWEST ONTARIO WILL WEAKEN
TO 29.5 INCHES AS IT CROSSES JAMES BAY WEDNESDAY NIGHT...REACHING
NORTHERN QUEBEC THURSDAY. AN ASSOCIATED COLD FRONT HAS PASSED EAST
OF LAKE MICHIGAN AND WILL MOVE ACROSS THE EASTERN GREAT LAKES
OVERNIGHT. A RIDGE OF HIGH PRESSURE AVERAGING 30.5 INCHES IS
BUILDING THROUGH THE NORTHERN AND CENTRAL PLAINS. THE RIDGE WILL
SPREAD ACROSS THE OHIO VALLEY AND THROUGH THE LOWER MISSISSIPPI
VALLEY BY WEDNESDAY EVENING. THE RIDGE WILL SPREAD EAST TO THE
WESTERN GREAT LAKES FRIDAY WHILE INCREASING TO 30.7 INCHES. THE
HIGH WILL CONTINUE TO BUILD EAST TO THE MID ATLANTIC REGION BY
SATURDAY EVENING AS LOW OF 29.8 INCHES FORMS OVER THE CENTRAL
PLAINS.

LMZ261-362-364-366-563-565-071045-
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-
855 PM CST TUE DEC 6 2016

TWO RIVERS WI TO MANISTEE MI NORTH...

...GALE WARNING IN EFFECT THROUGH WEDNESDAY EVENING...

.REST OF TONIGHT...SOUTHWEST GALES TO 35 KT BECOMING WEST. CHANCE
OF SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.WEDNESDAY...WEST GALES TO 35 KT. CHANCE OF SNOW. WAVES 7 TO 10
FT OCCASIONALLY TO 13 FT.
.WEDNESDAY NIGHT...WEST GALES TO 35 KT DIMINISHING TO 30 KT.
CHANCE OF SNOW SHOWERS. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.THURSDAY...WEST WINDS TO 30 KT BECOMING NORTHWEST. CHANCE OF
SNOW SHOWERS. WAVES SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT.
.THURSDAY NIGHT...NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW
SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF SNOW SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT. SNOW SHOWERS LIKELY.
WAVES 2 TO 4 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. CHANCE OF
SNOW SHOWERS. WAVES 1 TO 3 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO 20 KT.
SNOW SHOWERS LIKELY. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-071045-
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-
855 PM CST TUE DEC 6 2016

TWO RIVERS WI TO MANISTEE MI SOUTH...

.REST OF TONIGHT...WEST WINDS TO 30 KT. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT.
.WEDNESDAY...WEST WINDS TO 30 KT. SLIGHT CHANCE OF SNOW. WAVES
6 TO 9 FT OCCASIONALLY TO 11 FT.
.WEDNESDAY NIGHT...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS
OVERNIGHT. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY...WEST WINDS TO 30 KT. CHANCE OF SNOW SHOWERS IN THE
AFTERNOON. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.THURSDAY NIGHT...NORTHWEST WINDS TO 30 KT. CHANCE OF SNOW
SHOWERS IN THE EVENING. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.FRIDAY...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
CHANCE OF SNOW SHOWERS IN THE MORNING. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT SUBSIDING TO 4 TO 7 FT OCCASIONALLY TO
9 FT.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT SUBSIDING TO 2 TO 4 FT.
.SATURDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST. CHANCE OF
SNOW SHOWERS. WAVES 2 TO 4 FT.
.SUNDAY...SOUTHWEST WINDS TO 30 KT BECOMING WEST 15 TO 25 KT.
CHANCE OF SNOW AND SHOWERS. WAVES 5 TO 8 FT OCCASIONALLY TO 10 FT
SUBSIDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.

$$
LMZ761-071045-
MAFOR 0704/
MICHIGAN NORTH...GALE WARNING IN EFFECT...11550 15650 11650.
CHANCE OF SNOW. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.

MICHIGAN SOUTH 16640. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.

$$

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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