

000 

WWUS20 KWNS 272332

SEL0

SPC WW 272332

CTZ000-NJZ000-NYZ000-PAZ000-CWZ000-280300-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 460

NWS STORM PREDICTION CENTER NORMAN OK

725 PM EDT WED JUN 27 2007



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN CONNECTICUT

       NORTHERN NEW JERSEY

       SOUTHEAST NEW YORK INCLUDING LONG ISLAND

       SOUTHEAST PENNSYLVANIA

       COASTAL WATERS



EFFECTIVE THIS WEDNESDAY EVENING FROM 725 PM UNTIL 1100 PM EDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH

NORTHEAST OF BRIDGEPORT CONNECTICUT TO 15 MILES WEST OF

HAGERSTOWN MARYLAND.  FOR A COMPLETE DEPICTION OF THE WATCH SEE

THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).



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...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 456. WATCH NUMBER 456 WILL NOT

BE IN EFFECT AFTER 725 PM EDT. CONTINUE...WW 457...WW 458...WW

459...



DISCUSSION...ORGANIZED BOW ECHO WAS LOCATED OVER SOUTHEAST NY AND

NORTHEAST PA...WITH ADDITIONAL CLUSTERS OF TSTMS EXTENDING SWWD INTO

SRN PA.  AN AXIS OF MODERATE INSTABILITY EXTENDING FROM THE MID

ATLANTIC STATES TO NEW ENGLAND WILL MAINTAIN STRONG TO SEVERE TSTMS

EWD ACROSS THE WATCH AREA.  STRONG DAMAGING WIND GUSTS WILL LIKELY

BE THE PRIMARY THREAT WITH AN ADDITIONAL THREAT FOR HAIL.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 28025.





...PETERS/IMY

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