

000 

WWUS20 KWNS 312157

SEL6

SPC WW 312157

CTZ000-MAZ000-NHZ000-NJZ000-NYZ000-VTZ000-010200-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 406

NWS STORM PREDICTION CENTER NORMAN OK

600 PM EDT SAT MAY 31 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN CONNECTICUT

       WESTERN MASSACHUSETTS

       EXTREME SOUTHERN NEW HAMPSHIRE

       EXTREME NORTHEAST NEW JERSEY

       SOUTHEAST NEW YORK

       EXTREME SOUTHEAST VERMONT



EFFECTIVE THIS SATURDAY EVENING FROM 600 PM UNTIL 1000 PM EDT.



HAIL TO 1 INCH 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 35

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES SOUTHWEST

OF POUGHKEEPSIE NEW YORK TO 5 MILES EAST SOUTHEAST OF WORCESTER

MASSACHUSETTS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 403...WW 404...WW 405...



DISCUSSION...SQUALL LINE ALONG COLD FRONT WILL CONTINUE TO PROGRESS

SEWD THROUGH THE EVENING INTO A REGION OF MODERATE INSTABILITY

INLAND FROM THE COAST.  DAMAGING WINDS AND MARGINALLY SEVERE HAIL

CAN BE EXPECTED WITH THE STRONGER STORMS IN THE LINE...BEFORE THE

INSTABILITY IS EXHAUSTED AND THE SEVERE THREAT ENDS BY LATE EVENING.



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

TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.

A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM MOTION

VECTOR 31025.





...THOMPSON

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