Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 010800 CCA
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN...CORRECTED
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
258 AM CDT MON SEP 1 2014

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...LOW PRESSURE OF 29.4 INCHES OVER WESTERN ONTARIO
WILL SHIFT NORTHEASTWARD TO THE JAMES BAY BY THIS EVENING...WHILE
DEEPENING TO 29.1 INCHES. A TRAILING COLD FRONT WILL SHIFT OVER
LAKE MICHIGAN TONIGHT. A WEAK AREA OF HIGH PRESSURE OF 30.0
INCHES WILL MOVE ACROSS ILLINOIS AND INDIANA ON TUESDAY...THEN
CONTINUE EASTWARD INTO THE UPPER OHIO VALLEY AND EASTERN LAKES BY
WEDNESDAY. ANOTHER LOW AROUND 29.5 INCHES WILL DEVELOP OVER THE
NORTHERN PLAINS ON WEDNESDAY...THEN MOVE NORTHEAST INTO ONTARIO
WEDNESDAY AND THURSDAY. THIS SYSTEM WILL DRIVE
ANOTHER...STRONGER...COLD FRONT ACROSS LAKE MICHIGAN ON FRIDAY.

LMZ261-362-364-366-563-565-567-868-011545-
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-
258 AM CDT MON SEP 1 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.TODAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST THIS
AFTERNOON. OCCASIONAL GUSTS TO 30 KT POSSIBLE FROM LATE MORNING
ON. CHANCE OF SHOWERS AND THUNDERSTORMS LATE THIS MORNING.
SHOWERS AND THUNDERSTORMS LIKELY EARLY THIS AFTERNOON...THEN
CHANCE OF SHOWERS AND THUNDERSTORMS LATE. WAVES 2 TO 4 FT BUILDING
TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...WEST WINDS 15 TO 25 KT DIMINISHING TO 10 TO 15 KT.
CHANCE OF SHOWERS AND THUNDERSTORMS THROUGH EARLY EVENING...THEN
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE IN THE EVENING.
WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING TO 2 TO 4 FT
OVERNIGHT.
.TUESDAY...WEST WINDS 10 TO 15 KT BECOMING SOUTHWEST. CHANCE OF
SHOWERS. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTHWEST WINDS 15 TO 25 KT. WAVES BUILDING TO 3 TO
5 FT OCCASIONALLY TO 7 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.THURSDAY...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...WEST WINDS 15 TO 25 KT BECOMING NORTHWEST. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-011545-
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-
258 AM CDT MON SEP 1 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.TODAY...SOUTH WINDS 10 TO 20 KT INCREASING TO 15 TO 25 KT
THIS MORNING...THEN BECOMING SOUTHWEST THIS AFTERNOON. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS LATE THIS MORNING.
CHANCE OF SHOWERS AND THUNDERSTORMS THIS AFTERNOON. WAVES 2 TO 4
FT BUILDING TO 4 TO 6 FT OCCASIONALLY TO 8 FT.
.TONIGHT...SOUTHWEST WINDS 15 TO 25 KT BECOMING NORTHWEST 10 TO 15
KT. CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 4 TO 6 FT
OCCASIONALLY TO 8 FT SUBSIDING TO 1 TO 3 FT LATE.
.TUESDAY...WEST WINDS 10 TO 15 KT BACKING TO SOUTH. SLIGHT CHANCE
OF SHOWERS IN THE AFTERNOON. WAVES 1 TO 2 FT.
.TUESDAY NIGHT...SOUTHWEST WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
.WEDNESDAY...SOUTH WINDS 10 TO 20 KT. WAVES 2 TO 4 FT.
.WEDNESDAY NIGHT...SOUTH WINDS 15 TO 25 KT. CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 3 TO 5 FT OCCASIONALLY TO 7 FT.
.THURSDAY...SOUTH WINDS 15 TO 25 KT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT.
.FRIDAY...WEST WINDS 15 TO 25 KT BECOMING NORTH. CHANCE OF
SHOWERS AND THUNDERSTORMS. WAVES 2 TO 4 FT.

$$

LMZ761-011545-
MAFOR 0109/
MICHIGAN NORTH 11433 11430 11430 19440 11439 19440 11530 11630
11620 11610. AREAS OF FOG EARLY THIS MORNING. CHANCE OF SHOWERS
AND THUNDERSTORMS TODAY. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT TODAY...THEN SUBSIDING TO 2 TO 4 FT TONIGHT.

MICHIGAN SOUTH 11420 13430 12530 11620 11710. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 2 TO 4 FT BUILDING TO 4 TO 6 FT
OCCASIONALLY TO 8 FT TODAY...THEN SUBSIDING TO 2 TO 4 FT TONIGHT.

$$

KJB







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