Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 282054
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
254 PM 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
AND WISCONSIN TO THE EAST COAST THIS AFTERNOON. THIS HIGH WILL
MOVE OFF THE EAST COAST TONIGHT. MEANWHILE LOW PRESSURE OF 29.4
INCHES WILL MOVE ACROSS HUDSON BAY TONIGHT INTO SUNDAY. THE COLD
FRONT TRAILING FROM THE LOW PRESSURE WILL CROSS LAKE MICHIGAN
SUNDAY EVENING...FOLLOWED BY HIGH PRESSURE OF 30.5 INCHES
SPREADING FROM THE PLAINS TO THE SOUTHERN GREAT LAKES ON MONDAY.
THIS HIGH WILL ALSO MOVE QUICKLY TO THE EAST COAST MONDAY
NIGHT...AS LOW PRESSURE OF 29.5 INCHES TAKES SHAPE ACROSS THE
CENTRAL HIGH PLAINS. THIS LOW WILL DEEPEN SLIGHTLY TO 29.4 INCHES
AS IT MOVES ACROSS SOUTHERN LAKE MICHIGAN TUESDAY AFTERNOON...AND
TO 29.2 INCHES AS IT LIFTS INTO QUEBEC BY EARLY WEDNESDAY. HIGH
PRESSURE OF 30.6 INCHES WILL SPREAD SOUTHEAST FROM THE NORTHERN
PLAINS TO THE MID MISSISSIPPI VALLEY WEDNESDAY NIGHT INTO THURSDAY
AFTERNOON.

LMZ261-362-364-563-010445-
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-
254 PM CST SAT FEB 28 2015

STURGEON BAY WI TO POINT BETSIE MI NORTH

.TONIGHT...SOUTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT
FROM LATE EVENING ON. CHANCE OF SNOW OVERNIGHT.
.SUNDAY...SOUTHWEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
FROM LATE MORNING ON. CHANCE OF SNOW IN THE MORNING... THEN
SLIGHT CHANCE OF SNOW IN THE AFTERNOON.
.SUNDAY NIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING WEST 10 TO
20 KT OVERNIGHT. CHANCE OF SNOW SHOWERS.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT BECOMING WEST 10 TO 15 KT
IN THE AFTERNOON.
.MONDAY NIGHT...SOUTH WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT
OVERNIGHT. SLIGHT CHANCE OF SNOW OVERNIGHT.
.TUESDAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHEAST. SNOW
LIKELY.
.TUESDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST 15 TO
25 KT OVERNIGHT. SNOW LIKELY.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15
KT OVERNIGHT. CHANCE OF SNOW SHOWERS.
.THURSDAY...WEST WINDS 10 TO 15 KT INCREASING TO 10 TO 20 KT IN
THE AFTERNOON AND THEN BECOMING SOUTHWEST 20 TO 25 KT OVERNIGHT.
SLIGHT 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-
878-010445-
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-
254 PM CST SAT FEB 28 2015

STURGEON BAY WI TO POINT BETSIE MI SOUTH

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

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ761-010445-
MAFOR 2822/
MICHIGAN NORTH 11530 11430 14520 12530. CHANCE OF SNOW OVERNIGHT AND
SUNDAY.

MICHIGAN SOUTH 11430 13420 13520 11530. CHANCE OF SNOW. WAVES 4 TO
6 FT OCCASIONALLY TO 8 FT.

$$

RC





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