Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 202030
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
230 PM CST SAT DEC 20 2014

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...A 30.4 INCH HIGH STRETCHES FROM EASTERN QUEBEC
THROUGH THE CENTRAL OHIO VALLEY AND IT WILL SLIDE OVER THE EAST
COAST SUNDAY EVENING. A LOW AVERAGING 29.3 INCHES MOVES OVER THE
DAKOTAS SUNDAY NIGHT...AND CONTINUES EAST TO WISCONSIN AT 29.6
INCHES TUESDAY. A SECOND LOW OF 29.6 INCHES FORMS OVER THE
SOUTHERN MISSISSIPPI VALLEY TUESDAY AFTERNOON AND QUICKLY DEEPENS
TO AROUND 29.1 INCHES OVER MICHIGAN WEDNESDAY. THE LOW THEN
CONTINUES TO DEEPEN TO AROUND 29.0 INCHES OVER SOUTHEAST CANADA
THURSDAY. GALE FORCE GUSTS ARE STILL EXPECTED WEDNESDAY INTO
THURSDAY. THE NEXT LOW AROUND 29.4 INCHES MOVES OVER THE SOUTHERN
PLAINS THURSDAY AFTERNOON AND IT WILL IMPACT THE WESTERN GREAT
LAKES LATE NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-210445-
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-
230 PM CST SAT DEC 20 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15. WAVES 1
TO 3 FT.
.SUNDAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 30 KT IN THE
AFTERNOON. CHANCE OF SNOW IN THE AFTERNOON. WAVES 2 TO 4 FT
BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT IN THE AFTERNOON.
.SUNDAY NIGHT...SOUTH WINDS TO 30 KT. CHANCE OF SNOW. WAVES 6 TO
9 FT OCCASIONALLY TO 11 FT BUILDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT OVERNIGHT.
.MONDAY...SOUTH WINDS TO 30 KT BECOMING SOUTHEAST IN THE AFTERNOON.
SLIGHT CHANCE OF RAIN. WAVES 7 TO 10 FT OCCASIONALLY TO 13 FT.
.MONDAY NIGHT...SOUTHEAST WINDS TO 30 KT DIMINISHING TO 15 TO 25
KT AFTER MIDNIGHT. RAIN OR SNOW IN THE EVENING...THEN RAIN
OVERNIGHT. WAVES SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT.
.TUESDAY...SOUTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT IN
THE AFTERNOON. RAIN LIKELY IN THE MORNING... THEN RAIN OR SNOW
LIKELY IN THE AFTERNOON. WAVES SUBSIDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.TUESDAY NIGHT...SOUTHEAST WINDS 10 TO 15 KT BACKING TO
NORTHEAST. RAIN LIKELY WITH A CHANCE OF SNOW. WAVES 2 TO 4 FT
SUBSIDING TO 1 TO 3 FT OVERNIGHT.
.WEDNESDAY...NORTHEAST WINDS 15 TO 25 KT BECOMING NORTHWEST GALES
TO 35 KT LATE IN THE AFTERNOON. RAIN AND SNOW LIKELY. WAVES 1 TO
3 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT IN THE AFTERNOON.
.THURSDAY...NORTHWEST GALES TO 40 KT. CHANCE OF SNOW SHOWERS.
WAVES 8 TO 12 FT OCCASIONALLY TO 15 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-210445-
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-
230 PM CST SAT DEC 20 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...SOUTHWEST WINDS 5 TO 10 KT INCREASING TO 10 TO 15
KT...THEN BECOMING SOUTH 10 TO 20 KT LATE. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT INCREASING TO 30 KT IN THE
AFTERNOON. SLIGHT CHANCE OF VERY LIGHT FREEZING DRIZZLE IN THE
MORNING. WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9
FT IN THE AFTERNOON.
.SUNDAY NIGHT...SOUTH WINDS TO 30 KT. SLIGHT CHANCE OF SNOW.
WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT.
.MONDAY...SOUTHEAST WINDS TO 30 KT. SLIGHT CHANCE OF RAIN IN THE
MORNING...THEN CHANCE OF RAIN IN THE AFTERNOON. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT.
.MONDAY NIGHT...SOUTH WINDS TO 30 KT DIMINISHING TO 10 TO 20 KT
AFTER MIDNIGHT. RAIN LIKELY. WAVES 6 TO 9 FT OCCASIONALLY TO 11
FT SUBSIDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT OVERNIGHT.
.TUESDAY...SOUTH WINDS 10 TO 15 KT. RAIN LIKELY. WAVES SUBSIDING
TO 3 TO 5 FT OCCASIONALLY TO 7 FT IN THE AFTERNOON.
.TUESDAY NIGHT...WEST WINDS 10 TO 15 KT VEERING TO NORTH 10 TO
20 KT. RAIN AND SNOW LIKELY. WAVES 1 TO 3 FT.
.WEDNESDAY...NORTH WINDS TO 30 KT BECOMING NORTHWEST...AND THEN
INCREASING TO GALES TO 35 KT IN THE AFTERNOON. RAIN AND SNOW
LIKELY. WAVES BUILDING TO 5 TO 8 FT OCCASIONALLY TO 10 FT IN THE
AFTERNOON.
.THURSDAY...WEST GALES TO 40 KT DIMINISHING TO 30 KT IN THE
AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT SUBSIDING TO 8 TO 12 FT OCCASIONALLY TO
15 FT IN THE AFTERNOON.

$$

LMZ761-210445-
MAFOR 2022/
MICHIGAN NORTH 11400 14410 11420 11430 11440. WAVES 1 TO 3 FT
TONIGHT. WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9
FT SUNDAY.

MICHIGAN SOUTH 11500 13510 11420 12430 11440. WAVES 1 TO 3 FT TONIGHT.
WAVES 2 TO 4 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
SUNDAY.

$$

JEE






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