WATCHES: Urgent - Immediate Broadcast Requested

WWUS20 KWNS 091841
SEL2
SPC WW 091841
CTZ000-DEZ000-MAZ000-MDZ000-NJZ000-NYZ000-PAZ000-RIZ000-CWZ000-10020
0-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 452
NWS STORM PREDICTION CENTER NORMAN OK
235 PM EDT THU JUN 9 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

MUCH OF CONNECTICUT
NORTHERN DELAWARE
MASSACHUSETTS
FAR NORTHEASTERN MARYLAND
NEW JERSEY
SOUTHERN NEW YORK
SOUTHEASTERN PENNSYLVANIA
RHODE ISLAND
COASTAL WATERS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 235 PM UNTIL
1000 PM EDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES EITHER SIDE OF A LINE FROM 20 MILES EAST OF BOSTON
MASSACHUSETTS TO 25 MILES WEST SOUTHWEST OF WILMINGTON DELAWARE.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 450...WW 451...

DISCUSSION...A BAND OF SEVERE STORMS FROM NRN PA NEWD INTO VT/NH
WILL CONTINUE TO ORGANIZE INTO ONE OR MORE LINES OF STORMS AND MOVE
ESEWD INTO THE EVENING HOURS. A COLD POOL IS EXPECTED TO DEVELOP IN
ASSOCIATION WITH THESE LINE/S...WHICH WILL ENHANCE THE FORWARD
MOTION OF THE LINE. ONCE THE LINE/S BEGINS TO INCREASE THEIR FORWARD
SPEED...THE POTENTIAL FOR WIDESPREAD DAMAGING WINDS...INCLUDING
WINDS FROM 60 TO 80 MPH...ARE LIKELY. LARGE HAIL IS ALSO
EXPECTED...ESPECIALLY WITH STORMS THAT DEVELOP AHEAD OF THE LINE.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 28030.

...IMY

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