Great Lakes Forecast
Issued by NWS

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FZUS63 KLOT 011348
GLFLM

OPEN LAKE FORECAST FOR LAKE MICHIGAN
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
848 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 MOVE NORTHEAST TO JAMES BAY BY THIS EVENING...WHILE
DEEPENING TO 29.1 INCHES. A TRAILING COLD FRONT WILL MOVE ACROSS
THE LAKE TONIGHT. A WEAK AREA OF HIGH PRESSURE OF 30.0 INCHES WILL
MOVE ACROSS ILLINOIS AND INDIANA ON TUESDAY...THEN CONTINUE EAST
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.

LMZ261-362-364-366-563-565-567-868-012000-
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-
848 AM CDT MON SEP 1 2014

SHEBOYGAN WI TO PENTWATER MI NORTH

.REST OF TODAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
OCCASIONAL GUSTS TO 30 KT POSSIBLE. SHOWERS LIKELY WITH A CHANCE
OF THUNDERSTORMS THIS AFTERNOON. WAVES 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.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-012000-
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-
848 AM CDT MON SEP 1 2014

SHEBOYGAN WI TO PENTWATER MI SOUTH

.REST OF TODAY...SOUTH WINDS 15 TO 25 KT BECOMING SOUTHWEST.
CHANCE OF SHOWERS AND THUNDERSTORMS. WAVES 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.

$$
LMZ761-012000-
MAFOR 0115/
MICHIGAN NORTH 12430 19440 11530 12630 11620 12610. SHOWERS LIKELY
WITH A CHANCE OF THUNDERSTORMS THIS AFTERNOON. CHANCE OF SHOWERS
AND THUNDERSTORMS THIS EVENING. WAVES 4 TO 6 FT OCCASIONALLY TO 8
FT SUBSIDING TO 2 TO 4 FT TONIGHT. WAVES 1 TO 2 FT TUESDAY MORNING.

MICHIGAN SOUTH 12430 12530 11520 11610 12710. CHANCE OF SHOWERS
AND THUNDERSTORMS. WAVES 4 TO 6 FT OCCASIONALLY TO 8 FT SUBSIDING
TO 1 TO 3 FT LATE TONIGHT.

$$





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