SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 689
   NWS STORM PREDICTION CENTER NORMAN OK
   545 PM EDT TUE JUL 26 2005
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL NEW YORK
          NORTHERN PENNSYLVANIA
          LAKE ONTARIO
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 545 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 90
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH
   SOUTHWEST OF ROCHESTER NEW YORK TO 5 MILES EAST SOUTHEAST OF UTICA
   NEW YORK.  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 686...WW 687...WW 688...
   
   DISCUSSION...CLUSTERS OF STRONG/SEVERE THUNDERSTORMS OVER WESTERN
   NY/PA WILL SPREAD EASTWARD ACROSS WATCH AREA THIS EVENING. 
   FAVORABLE DEEP LAYER SHEAR AND SUFFICIENT INSTABILITY INDICATE A
   RISK OF DAMAGING WINDS IN STRONGER STORMS.
   
   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 27030.
   
   
   ...HART