Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 300107
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
807 PM CDT WED APR 29 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 WEAK RIDGE OF HIGH PRESSURE AVERAGING 30.0 INCHES
EXTENDS FROM TEXAS NORTH TO HUDSON BAY. THE RIDGE AXIS WILL VERY
SLOWLY DRIFT EAST TO THE CENTRAL GREAT LAKES BY SATURDAY...THEN TO
THE MID ATLANTIC COAST BY MONDAY. A TROUGH OF LOW PRESSURE
AVERAGING 29.7 INCHES WILL DEVELOP OVER THE CANADIAN PRAIRIES AND
CENTRAL PLAINS THIS WEEKEND AND MOVE ACROSS LAKE MICHIGAN MONDAY.

LMZ261-362-364-366-563-565-567-868-300930-
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-
807 PM CDT WED APR 29 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TONIGHT...NORTH WINDS 10 TO 20 KT INCREASING TO 15 TO
25 KT. WAVES 2 TO 4 FT BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7
FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT DIMINISHING TO 10 TO 20 KT.
WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY NIGHT...NORTH WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES SUBSIDING TO 1 TO 3 FT.
.FRIDAY...NORTHWEST WINDS 5 TO 10 KT BACKING TO SOUTHWEST. WAVES
SUBSIDING TO 1 FT OR LESS.
.FRIDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 10 TO
20 KT. WAVES 1 TO 3 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.SUNDAY...SOUTH WINDS 10 TO 20 KT. WAVES 1 TO 2 FT.
.MONDAY...NORTHWEST WINDS 10 TO 15 KT BECOMING NORTH 10 TO 20 KT.
CHANCE OF SHOWERS. WAVES 1 TO 2 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-300930-
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-
807 PM CDT WED APR 29 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TONIGHT...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 6 FT
OCCASIONALLY TO 8 FT.
.THURSDAY...NORTH WINDS 15 TO 25 KT. WAVES 3 TO 6 FT OCCASIONALLY
TO 8 FT.
.THURSDAY NIGHT...NORTH WINDS GRADUALLY DIMINISHING TO 10 TO 15
KT. WAVES SUBSIDING TO 2 TO 4 FT.
.FRIDAY...NORTH WINDS 10 TO 15 KT BECOMING NORTHWEST. WAVES SUBSIDING
TO 1 TO 3 FT.
.FRIDAY NIGHT...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST. WAVES
1 TO 2 FT.
.SATURDAY...SOUTHWEST WINDS 10 TO 15 KT BECOMING SOUTH 10 TO
20 KT. WAVES 1 TO 2 FT.
.SATURDAY NIGHT...SOUTH WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
.SUNDAY...SOUTH WINDS 10 TO 20 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 1 TO 2 FT.
.MONDAY...SOUTH WINDS 10 TO 20 KT BECOMING SOUTHEAST 10 TO 15 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 1 TO 2 FT.

$$
LMZ761-300930-
MAFOR 3004/
MICHIGAN NORTH 11820 14830 13820. WAVES 2 TO 4 FT BUILDING TO 3
TO 6 FT OCCASIONALLY TO 7 FT BY THURSDAY MORNING.

MICHIGAN SOUTH 16830. WAVES 3 TO 6 FT OCCASIONALLY TO 8 FT.

$$

IZZI


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