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Severe Thunderstorm Watch 823
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WW0823 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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 823
   NWS STORM PREDICTION CENTER NORMAN OK
   425 PM EDT WED OCT 11 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF CENTRAL AND EASTERN KENTUCKY
          FAR WESTERN NORTH CAROLINA
          PARTS OF MIDDLE AND EASTERN TENNESSEE
          FAR WESTERN VIRGINIA
          PARTS OF WESTERN WEST VIRGINIA
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 425 PM UNTIL
   1100 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 75
   STATUTE MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF
   JACKSON KENTUCKY TO 5 MILES EAST SOUTHEAST OF CHATTANOOGA
   TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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...FAVORABLE SHEAR PROFILES IN PLACE ACROSS WATCH AREA AS
   STRONG UPPER VORTEX CONTINUES TO DEVELOP OVER CENTRAL U.S.  WITH
   MLCAPES TO 1000 J/KG AND MDTLY STEEP LAPSE RATES...THUNDERSTORMS
   EXPECTED TO INCREASE IN NUMBER AND INTENSITY ACROSS THE WATCH. 
   SUPERCELLS ARE LIKELY GIVEN THE SHEAR ENHANCING BOTH HAIL AND WIND
   THREAT.
   
   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 450. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...HALES
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