Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 191436
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
836 AM CST FRI DEC 19 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...AN AREA OF HIGH PRESSURE OF 30.4 INCHES STRETCHES FROM
THE MID MISSISSIPPI VALLEY NORTH INTO ONTARIO. THIS HIGH WILL
MOVE SLOWLY EAST ACROSS THE WESTERN GREAT LAKES REGION TODAY AND
TONIGHT...SPANNING FROM THE LOWER OHIO VALLEY TO QUEBEC BY
SATURDAY MORNING. THE HIGH WILL REMAIN TO THE EAST ON SUNDAY...AS
A TROUGH OF LOW PRESSURE OF 29.4 INCHES DEVELOPS EAST OF THE
CANADIAN ROCKIES. THE LOW WILL MOVE SOUTHEAST ACROSS THE NORTHERN
PLAINS SUNDAY NIGHT AND TO SOUTHERN MINNESOTA AND NORTHERN IOWA BY
MONDAY AFTERNOON. THE LOW WILL THEN DRIFT EAST ACROSS WISCONSIN
AND LAKE MICHIGAN MONDAY NIGHT AND TUESDAY WHILE FILLING TO 29.5
INCHES. ANOTHER LOW WILL DEVELOP TUESDAY NIGHT OVER THE OHIO
VALLEY...AND WILL LIFT NORTH TO THE EASTERN GREAT LAKES WEDNESDAY
WHILE RAPIDLY DEEPENING TO 29.1 INCHES. THE LOW WILL LIFT
NORTHEAST INTO QUEBEC THURSDAY.

LMZ261-362-364-366-563-565-567-868-192245-
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-
836 AM CST FRI DEC 19 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...NORTH WINDS 5 TO 10 KT BECOMING NORTHWEST LATE IN
THE AFTERNOON. WAVES 1 TO 3 FT SUBSIDING TO 1 TO 2 FT.
.TONIGHT...WEST WINDS 5 TO 10 KT BECOMING SOUTHWEST. WAVES 1 TO 2
FT.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 3 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF SNOW. WAVES 1 TO
3 FT BUILDING TO 3 TO 5 FT BY LATE AFTERNOON.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SNOW. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.MONDAY...SOUTHEAST WINDS 15 TO 25 KT. SLIGHT CHANCE OF RAIN AND
SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TUESDAY...SOUTHEAST WINDS 15 TO 20 KT BECOMING SOUTH AROUND 15
KT. RAIN AND SNOW LIKELY. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT
SUBSIDING TO 2 TO 4 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-192245-
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-
836 AM CST FRI DEC 19 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...NORTH WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10
KT...THEN BECOMING NORTHWEST LATE IN THE AFTERNOON. WAVES 2 TO 4
FT SUBSIDING TO 1 TO 3 FT.
.TONIGHT...NORTHWEST WINDS 5 TO 10 KT BECOMING VARIABLE...AND THEN
BECOMING SOUTHWEST AFTER MIDNIGHT. WAVES 1 TO 3 FT SUBSIDING TO 1
TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 5 TO 10 KT. SLIGHT CHANCE OF FLURRIES
IN THE MORNING. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF VERY LIGHT
FREEZING DRIZZLE OR SNOW IN THE MORNING...THEN SLIGHT CHANCE OF
SNOW IN THE AFTERNOON. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT IN THE AFTERNOON.
.SUNDAY NIGHT...SOUTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF SNOW.
WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.MONDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF RAIN AND SNOW. WAVES
3 TO 5 FT OCCASIONALLY TO 7 FT.
.TUESDAY...SOUTH WINDS 15 TO 20 KT BECOMING SOUTHWEST 15 TO 20
KT. CHANCE OF RAIN. WAVES SUBSIDING TO 2 TO 4 FT.

$$
LMZ761-192245-
MAFOR 1916/
MICHIGAN NORTH 12800 11700 11600 14500. WAVES 1 TO 3 FT SUBSIDING
TO 1 TO 2 FT THIS AFTERNOON. WAVES 1 TO 2 FT TONIGHT AND SATURDAY
MORNING.

MICHIGAN SOUTH 11810 11800 12700 11900 13500. WAVES 2 TO 4 FT SUBSIDING
TO 1 TO 3 FT THIS AFTERNOON. WAVES 1 TO 3 FT SUBSIDING TO 1
TO 2 FT TONIGHT. WAVES 1 TO 2 FT SATURDAY MORNING.

$$

JEE







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