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Severe Thunderstorm Watch 709
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WW0709 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 709
   NWS STORM PREDICTION CENTER NORMAN OK
   210 PM EDT SUN JUL 20 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN CONNECTICUT
          MUCH OF MASSACHUSETTS
          PARTS OF SOUTHERN NEW HAMPSHIRE
          LARGE PART OF EASTERN NEW YORK
          SMALL PART OF NORTHEASTERN PENNSYLVANIA
          NORTHERN RHODE ISLAND
          PARTS OF SOUTHERN VERMONT
          COASTAL WATERS
   
   EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 210 PM UNTIL 800
   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 65
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES SOUTH
   SOUTHWEST OF ITHACA NEW YORK TO 45 MILES EAST NORTHEAST OF
   WORCESTER MASSACHUSETTS.  FOR A COMPLETE DEPICTION OF THE WATCH
   SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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 708...
   
   DISCUSSION...AIR MASS HAS BECOME MODERATELY UNSTABLE AND UNCAPPED
   ACROSS THE WATCH AREA AS TEMPS WARM INTO THE LOW 90S. WITH 30KT OF
   DEEP LAYER SHEAR THUNDERSTORMS WILL INCREASE IN NUMBER AND INTENSITY
   WITH DAMAGING WINDS BECOMING THE PRIMARY SEVERE CONCERN.
   
   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 500. MEAN STORM
   MOTION VECTOR 26030.
   
   
   ...HALES
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