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000 

WWUS20 KWNS 191727

SEL2

SPC WW 191727

CTZ000-MAZ000-MEZ000-NHZ000-NYZ000-RIZ000-VTZ000-CWZ000-200100-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 702

NWS STORM PREDICTION CENTER NORMAN OK

130 PM EDT SAT JUL 19 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHERN CONNECTICUT

       MASSACHUSETTS

       PARTS OF SOUTHERN MAINE

       MUCH OF NEW HAMPSHIRE

       MUCH OF EASTERN NEW YORK

       NORTHERN RHODE ISLAND

       MUCH OF VERMONT

       COASTAL WATERS



EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 130 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 85

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

SYRACUSE NEW YORK TO 40 MILES EAST OF PORTSMOUTH NEW HAMPSHIRE.

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.



DISCUSSION...THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY

INITIALLY ACROSS HIGHER TERRAIN OF WATCH.  AS AIR MASS CONTINUES TO

HEAT AND DESTABILIZE STORMS WILL DEVELOP INTO CLUSTERS AND LINE

SEGMENTS IN THE 30KT DEEP LAYER SHEAR REGIME.  DAMAGING WINDS AND

HAIL WILL BE PRIMARY THREAT WITH STRONGEST UPDRAFTS AND ANY LINE

SEGMENT.



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 500. MEAN STORM

MOTION VECTOR 26025.





...HALES

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