

962 

WWUS20 KWNS 011855

SEL6

SPC WW 011855

CTZ000-MAZ000-NYZ000-VTZ000-020100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 536

NWS STORM PREDICTION CENTER NORMAN OK

255 PM EDT WED JUL 1 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       FAR NORTHWEST CONNECTICUT

       FAR WESTERN MASSACHUSETTS

       EASTERN INTO NORTHERN NEW YORK

       SOUTHERN AND WESTERN VERMONT



EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM UNTIL

900 PM EDT.



HAIL TO 2 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 60

STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH OF

POUGHKEEPSIE NEW YORK TO 45 MILES NORTH NORTHEAST OF SARANAC LAKE

NEW YORK.  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.



DISCUSSION...THUNDERSTORMS WILL INCREASE ACROSS THE AREA AHEAD OF

LARGE UPPER TROUGH OVER THE GREAT LAKES REGION...AS AIRMASS BECOMES

MODERATELY UNSTABLE ALONG THE HUDSON VALLEY TOWARDS THE CT RIVER

VALLEY.  DEEP LAYER SHEAR WILL REMAIN SUPPORTIVE OF ORGANIZED

STORMS...INCLUDING BRIEF SUPERCELLS...WITH PRIMARY RISKS OF LARGE

HAIL AND ISOLATED DAMAGING WINDS.



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM

MOTION VECTOR 21015.





...EVANS

