Great Lakes Forecast
Issued by NWS

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000
FZUS63 KLOT 011953
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
253 PM CDT SAT AUG 1 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 29.2 INCH LOW OVER HUDSON BAY WILL REMAIN
STATIONARY THROUGH SUNDAY AS IT SLOWLY WEAKENS TO 29.5 INCHES.
MEANWHILE...HIGH PRESSURE AVERAGING 30.0 INCHES EXTENDS FROM THE
CENTRAL PLAINS THROUGH THE OHIO VALLEY. THE HIGH WILL SLOWLY
SHIFT EAST WHILE A TROUGH AVERAGING 29.5 INCHES ASSOCIATED WITH A
COLD FRONT CROSSES THE LAKE SUNDAY AFTERNOON AND NIGHT. A 30.0
INCH HIGH WILL THEN SPREAD OVER THE WESTERN GREAT LAKES MONDAY
EVENING AND SHIFT EAST OF THE LAKE MID NEXT WEEK.

LMZ261-362-364-366-563-565-567-868-020330-
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-
253 PM CDT SAT AUG 1 2015

SHEBOYGAN WI TO PENTWATER MI NORTH

.TONIGHT...SOUTHWEST WINDS 10 TO 15 KT INCREASING TO 15 TO 25 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO 3 FT
BUILDING TO 3 TO 5 FT OCCASIONALLY TO 7 FT
.SUNDAY...SOUTHWEST WINDS 15 TO 25 KT WITH A FEW GUSTS TO 30 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING...THEN SHOWERS
AND THUNDERSTORMS LIKELY IN THE AFTERNOON. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT.
.SUNDAY NIGHT...NORTHWEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO
15 KT LATE IN THE EVENING...THEN INCREASING TO 10 TO 20 KT LATE.
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. WAVES 4 TO 6
FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT. WAVES SUBSIDING TO 1 TO 3
FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 20 KT DIMINISHING TO 10 TO
15 KT. WAVES 1 TO 3 FT.
.TUESDAY...NORTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...NORTH WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTH WINDS 5 TO 10 KT INCREASING TO 10 TO 15 KT.
WAVES 1 TO 2 FT.
.THURSDAY...NORTHEAST WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-020330-
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-
253 PM CDT SAT AUG 1 2015

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TONIGHT...SOUTH WINDS 10 TO 15 KT BECOMING SOUTHWEST 10 TO
20 KT. CHANCE OF SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 1 TO
2 FT BUILDING TO 2 TO 4 FT.
.SUNDAY...SOUTHWEST WINDS 15 TO 20 KT INCREASING TO 30 KT. CHANCE
OF SHOWERS AND THUNDERSTORMS. WAVES BUILDING TO 4 TO 7 FT
OCCASIONALLY TO 9 FT.
.SUNDAY NIGHT...SOUTHWEST WINDS TO 30 KT BECOMING WEST LATE IN
THE EVENING...THEN BECOMING NORTHWEST 10 TO 20 KT OVERNIGHT.
SHOWERS AND THUNDERSTORMS LIKELY IN THE EVENING...THEN CHANCE OF
SHOWERS AND THUNDERSTORMS OVERNIGHT. WAVES 4 TO 7 FT OCCASIONALLY
TO 9 FT SUBSIDING TO 2 TO 4 FT.
.MONDAY...NORTHWEST WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.MONDAY NIGHT...NORTHWEST WINDS 10 TO 15 KT DIMINISHING TO 5 TO
10 KT OVERNIGHT. WAVES 1 TO 3 FT.
.TUESDAY...WEST WINDS 5 TO 10 KT BECOMING NORTH. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...NORTHEAST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.THURSDAY...EAST WINDS 10 TO 15 KT BECOMING NORTHEAST 10 TO
20 KT. WAVES 1 TO 2 FT.

$$

LMZ761-020330-
MAFOR 0121/
MICHIGAN NORTH 10510 13520 14530 11539. CHANCE OF SHOWERS AND
THUNDERSTORMS OVERNIGHT AND SUNDAY. WAVES 1 TO 3 FT BUILDING TO 3
TO 5 FT OCCASIONALLY TO 7 FT TONIGHT AND TO 4 TO 6 FT
OCCASIONALLY TO 8 FT SUNDAY.

MICHIGAN SOUTH 11510 11410 12510 12520 11530 11540. CHANCE OF
SHOWERS AND THUNDERSTORMS LATE THIS EVENING. CHANCE OF SHOWERS
AND THUNDERSTORMS SUNDAY. WAVES 1 TO 2 FT BUILDING TO 2 TO 4
TONIGHT AND TO 4 TO 7 FT OCCASIONALLY TO 9 FT SUNDAY.

$$

RC


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