Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 281448
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
848 AM CST SAT FEB 28 2015

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 30.7 INCHES STRETCHED FROM ILLINOIS
TO PENNSYLVANIA THIS MORNING. THIS HIGH WILL DEVELOP EAST ACROSS
THE NORTHERN APPALACHIANS THIS AFTERNOON AND TO THE JERSEY SHORE
TONIGHT. MEANWHILE LOW PRESSURE OF 29.4 INCHES WILL MOVE ACROSS
HUDSON BAY WELL NORTH OF THE LAKES TONIGHT...BUT WILL TRAIL A COLD
FRONTAL TROUGH AVERAGING 30.1 INCHES INTO THE WESTERN LAKES SUNDAY
AFTERNOON AND EVENING. THE COLD FRONT WILL CROSS LAKE MICHIGAN BY
SUNDAY EVENING...BEFORE HIGH PRESSURE OF 30.5 INCHES BUILDS EAST
FROM THE PLAINS TO THE MIDWEST AND SOUTHERN GREAT LAKES ON MONDAY.
THIS HIGH WILL ALSO MOVE QUICKLY TO THE EAST COAST MONDAY
NIGHT...AS LOW PRESSURE OF 29.4 INCHES TAKES SHAPE ACROSS THE
CENTRAL HIGH PLAINS. THIS LOW WILL DEEPEN TO 29.3 INCHES AS IT
MOVES ACROSS SOUTHERN LAKE MICHIGAN TUESDAY AFTERNOON...AND TO
29.2 INCHES AS IT LIFTS INTO QUEBEC BY EARLY WEDNESDAY AS HIGH
PRESSURE OF 30.6 INCHES BUILDS SOUTHEAST ACROSS THE PLAINS.

LMZ261-362-364-563-282230-
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 ROCK ISLAND PASSAGE TO STURGEON BAY WI-
848 AM CST SAT FEB 28 2015

STURGEON BAY WI TO POINT BETSIE MI NORTH

.REST OF TODAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT EARLY THIS AFTERNOON.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
OVERNIGHT. SLIGHT CHANCE OF SNOW OVERNIGHT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
EARLY IN THE AFTERNOON. CHANCE OF SNOW.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
TOWARD MORNING. CHANCE OF SNOW SHOWERS.
.MONDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST.
.MONDAY NIGHT...SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT
OVERNIGHT. CHANCE OF SNOW.
.TUESDAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHEAST 10 TO 20 KT
IN THE AFTERNOON...AND NORTHEAST OVERNIGHT. SNOW LIKELY.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. A FEW GUSTS TO 30 KT
POSSIBLE. CHANCE OF SNOW SHOWERS.

WAVES OMITTED DUE TO EXTENSIVE ICE COVERAGE

$$

LMZ080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-282230-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM
OFFSHORE TO MID LAKE-
LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO
MID LAKE-
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 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-
848 AM CST SAT FEB 28 2015

STURGEON BAY WI TO POINT BETSIE MI SOUTH

.REST OF TODAY...SOUTH WINDS 10 TO 20 KT. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.TONIGHT...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT...
THEN BECOMING SOUTHWEST 10 TO 20 KT LATE. CHANCE OF SNOW. WAVES
4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO 15 KT
LATE IN THE MORNING...THEN INCREASING TO 10 TO 20 KT IN THE
AFTERNOON. CHANCE OF SNOW. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT
SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT IN THE AFTERNOON.
.SUNDAY NIGHT...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST AND
INCREASING TO 30 KT. CHANCE OF SNOW SHOWERS. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT OCCASIONALLY TO 9 FT
OVERNIGHT.
.MONDAY...NORTHWEST WINDS 15 TO 25 KT EARLY...DIMINISHING TO 10
TO 15 KT AND BECOMING SOUTHWEST IN THE AFTERNOON. WAVES 4 TO 7 FT
OCCASIONALLY TO 9 FT SUBSIDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
OVERNIGHT. CHANCE OF SNOW. WAVES 1 TO 3 FT BUILDING TO 3 TO 5 FT
OCCASIONALLY TO 7 FT OVERNIGHT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT...VEERING NORTHWEST TUESDAY
NIGHT. RAIN...SNOW AND FREEZING RAIN. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.WEDNESDAY...NORTHWEST WINDS TO 30 KT. A FEW GALE FORCE GUSTS TO
35 KT POSSIBLE. CHANCE OF SNOW SHOWERS. WAVES 6 TO 9 FT
OCCASIONALLY TO 11 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$
LMZ761-282230-
MAFOR 2816/
MICHIGAN NORTH 11520 12530 13530 12520. CHANCE OF SNOW SUNDAY
MORNING.

MICHIGAN SOUTH 11420 13420 19430 11430 11530 12520. CHANCE OF
SNOW TONIGHT AND SUNDAY MORNING. WAVES 4 TO 6 FT OCCASIONALLY TO 8
FT.

$$

RC




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