Great Lakes Forecast
Issued by NWS

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245
FZUS63 KLOT 012047
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
247 PM CST THU DEC 1 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...LOW PRESSURE OF 29.3 INCHES LIES OVER SOUTHERN QUEBEC
THIS AFTERNOON AND WILL MERGE WITH ANOTHER LOW OVER THE CANADIAN
MARITIMES FRIDAY. A 30.3 INCH RIDGE WILL BUILD ACROSS THE NORTHERN
PLAINS INTO THE LOWER MISSISSIPPI VALLEY FRIDAY...MOVE OVER THE
MIDWEST AND GREAT LAKES SATURDAY...THEN SHIFT OVER NEW ENGLAND BY
EARLY NEXT WEEK. A 29.5 INCH LOW IS EXPECTED TO DEVELOP OVER THE
SOUTHERN PLAINS MONDAY AND LIFT ACROSS THE GREAT LAKES AROUND
MIDWEEK...THOUGH THERE IS CONSIDERABLE UNCERTAINTY IN THE STRENGTH
AND TIMING OF THIS LOW AT THE MOMENT.

LMZ261-362-364-366-563-565-567-868-020430-
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-
247 PM CST THU DEC 1 2016

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...NORTHWEST WINDS TO 30 KT DIMINISHING TO 15 TO 25 KT.
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
CHANCE OF SHOWERS IN THE MORNING...THEN SLIGHT CHANCE OF SHOWERS
IN THE AFTERNOON. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.FRIDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 2 TO 4 FT SUBSIDING TO 1 TO 3 FT.
.SATURDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING WEST. WAVES 1 TO
2 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF RAIN AND SNOW IN
THE AFTERNOON. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT. CHANCE OF RAIN AND
SNOW SHOWERS. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY
TO 7 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 10 TO 15 KT.
WAVES 2 TO 4 FT.
.TUESDAY...SOUTHEAST WINDS 10 TO 20 KT BECOMING EAST 15 TO 25 KT.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-020430-
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-
247 PM CST THU DEC 1 2016

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...WEST WINDS TO 30 KT BECOMING NORTHWEST 15 TO 25 KT.
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 SHOWERS IN THE MORNING...THEN SLIGHT CHANCE OF SHOWERS
IN THE AFTERNOON. 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 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 2 TO 4 FT.
.SATURDAY...WEST WINDS 5 TO 10 KT. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...WEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT. CHANCE OF RAIN AND SNOW IN
THE MORNING...THEN RAIN LIKELY WITH A CHANCE OF SNOW IN THE
AFTERNOON. WAVES 1 TO 3 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST. CHANCE
OF SHOWERS. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO
7 FT.
.MONDAY...SOUTHWEST WINDS 10 TO 20 KT BECOMING SOUTH 10 TO 15 KT.
WAVES 2 TO 4 FT SUBSIDING TO 1 TO 2 FT.
.TUESDAY...EAST WINDS 15 TO 25 KT. WAVES 3 TO 5 FT OCCASIONALLY
TO 7 FT.

$$

LMZ761-020430-
MAFOR 0122/
MICHIGAN NORTH 12747 13737 13730. CHANCE OF SHOWERS FRIDAY
MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT TONIGHT SUBSIDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT FRIDAY.

MICHIGAN SOUTH 12647 13737 12730 11720. CHANCE OF SHOWERS FRIDAY
MORNING. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT TONIGHT. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT FRIDAY.

$$

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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