Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 202048
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
248 PM CST FRI FEB 20 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...A 30.5 INCH HIGH IS OVER THE APPALACHIANS WHILE A
TROUGH OF LOW PRESSURE AVERAGING 29.7 INCHES STRETCHES FROM THE
TEXAS PANHANDLE THROUGH COLORADO AND UP THROUGH SOUTHWEST ONTARIO.
THE TROUGH WEAKENS TO 29.9 INCHES AS IT MOVES OVER THE LAKE
SATURDAY MORNING AND REACHES THE ATLANTIC COAST AT AROUND 30.1
INCHES SUNDAY MORNING. A 31.0 HIGH MOVES OVER NORTH DAKOTA SUNDAY
AFTERNOON AND THE HIGHS CENTER PASSES OVER SOUTHERN ILLINOIS AT
30.7 INCHES MONDAY EVENING BEFORE REACHING THE SOUTHEAST UNITED
STATES TUESDAY AFTERNOON. A 29.3 INCH LOW DROPS OVER WESTERN
ONTARIO LATE MONDAY NIGHT AND REACHES NEW BRUNSWICK WEDNESDAY
EVENING.

LMZ261-362-364-366-563-565-210500-
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-
248 PM CST FRI FEB 20 2015

TWO RIVERS WI TO MANISTEE MI NORTH

.TONIGHT...SOUTH WINDS TO 30 KT BECOMING WEST TO 10 TO 20 KT LATE.
SNOW. OCCASIONAL GALE FORCE GUSTS TO 35 KT THIS EVENING. WAVES 8 TO
12 FT OCCASIONALLY TO 15 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO
11 FT LATE.
.SATURDAY...WEST WINDS 5 TO 10 KT BECOMING NORTHWEST LATE IN THE
MORNING...THEN BECOMING NORTH 10 TO 20 KT IN THE AFTERNOON.
CHANCE OF SNOW IN THE MORNING...THEN SNOW LIKELY IN THE AFTERNOON.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 1 TO 3 FT IN THE
AFTERNOON.
.SATURDAY NIGHT...NORTH WINDS 10 TO 20 KT BECOMING NORTHWEST
15 TO 25 KT FROM LATE EVENING ON. CHANCE OF SNOW SHOWERS. WAVES
3 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
20 KT OVERNIGHT. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.MONDAY...WEST WINDS 10 TO 20 KT BECOMING SOUTHWEST 15 TO 25 KT
IN THE AFTERNOON. SLIGHT CHANCE OF SNOW SHOWERS. WAVES 3 TO 5 FT
OCCASIONALLY TO 7 FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT
IN THE AFTERNOON.
.MONDAY NIGHT...SOUTHWEST GALES TO 35 KT. FREEZING SPRAY LIKELY.
CHANCE OF SNOW SHOWERS. WAVES BUILDING TO 8 TO 11 FT
OCCASIONALLY TO 14 FT OVERNIGHT.
.TUESDAY...SOUTHWEST WINDS TO 30 KT BECOMING NORTHWEST LATE IN
THE AFTERNOON. FREEZING SPRAY. SNOW SHOWERS LIKELY. WAVES 8 TO 11
FT OCCASIONALLY TO 14 FT SUBSIDING TO 7 TO 10 FT OCCASIONALLY TO
13 FT IN THE AFTERNOON.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ080-567-669-671-673-675-777-779-868-870-872-874-876-878-210500-
LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 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-
248 PM CST FRI FEB 20 2015

TWO RIVERS WI TO MANISTEE MI SOUTH

.TONIGHT...SOUTH GALES TO 30 KT BECOMING SOUTHWEST 10 TO 20 KT
LATE. SNOW THIS EVENING...THEN CHANCE OF SNOW OVERNIGHT. WAVES 10
TO 14 FT OCCASIONALLY TO 18 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY
TO 11 FT LATE.
.SATURDAY...WEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO 10 KT LATE
IN THE MORNING...THEN BECOMING NORTHWEST 10 TO 20 KT LATE IN THE
AFTERNOON. CHANCE OF SNOW. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT
SUBSIDING TO 1 TO 3 FT IN THE AFTERNOON.
.SATURDAY NIGHT...NORTH WINDS 15 TO 25 KT. CHANCE OF SNOW
SHOWERS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.SUNDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT IN THE AFTERNOON.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT. SNOW SHOWERS IN THE
EVENING...THEN CHANCE OF SNOW SHOWERS OVERNIGHT. WAVES 5 TO 8 FT
OCCASIONALLY TO 10 FT.
.MONDAY...WEST WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT IN THE
AFTERNOON. CHANCE OF SNOW SHOWERS. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT.
.MONDAY NIGHT...SOUTHWEST WINDS TO 30 KT INCREASING TO GALES TO
35 KT OVERNIGHT. FREEZING SPRAY LIKELY. SLIGHT CHANCE OF SNOW
SHOWERS. WAVES 6 TO 9 FT OCCASIONALLY TO 11 FT BUILDING TO 8 TO
12 FT OCCASIONALLY TO 15 FT OVERNIGHT.
.TUESDAY...SOUTHWEST GALES TO 35 KT BECOMING WEST TO 30 KT LATE IN
THE AFTERNOON. FREEZING SPRAY. CHANCE OF SNOW SHOWERS. WAVES 8 TO
12 FT OCCASIONALLY TO 15 FT.
.WEDNESDAY...NORTHWEST WINDS 15 TO 25 KT. CHANCE OF SNOW SHOWERS.
WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT.

WAVE FORECAST IS FOR ICE FREE AREAS

$$

LMZ761-210500-
MAFOR 2022/
MICHIGAN NORTH 11447 19457 11547 19557 11547 11537 11620 11600
11700 11810. CHANCE OF SNOW SATURDAY. WAVES 8 TO 12 FT
OCCASIONALLY TO 15 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11 FT
TONIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 1 TO 3
FT SATURDAY.

MICHIGAN SOUTH 12447 19457 11547 11537 11520 11610 11600 11700.
CHANCE OF SNOW LATE TONIGHT AND SATURDAY. WAVES 10 TO 14 FT
OCCASIONALLY TO 18 FT SUBSIDING TO 6 TO 9 FT OCCASIONALLY TO 11
FT TONIGHT. WAVES 4 TO 7 FT OCCASIONALLY TO 9 FT SUBSIDING TO 1
TO 3 FT SATURDAY.

$$

JEE







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