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Tornado Watch 722
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WW0722 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 722
   NWS STORM PREDICTION CENTER NORMAN OK
   135 PM CDT THU OCT 18 2007
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          PART OF NORTHERN ALABAMA
          PARTS OF NORTHEAST ARKANSAS
          PARTS OF SOUTHERN ILLINOIS
          SMALL PART OF SOUTHERN INDIANA
          WESTERN KENTUCKY
          PARTS OF SOUTHEAST MISSOURI
          NORTHERN MISSISSIPPI
          WESTERN AND PARTS OF MIDDLE TENNESSEE
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 135 PM UNTIL
   1100 PM CDT.
   
   TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 120 STATUTE
   MILES EAST AND WEST OF A LINE FROM 40 MILES SOUTHEAST OF
   GREENWOOD MISSISSIPPI TO 45 MILES NORTH NORTHEAST OF EVANSVILLE
   INDIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   DISCUSSION...BROAD WARM SECTOR ACROSS LOWER MS/TN VALLEY HAS BECOME
   MDTLY UNSTABLE AND WEAKLY CAPPED. WITH STRONG DEEP LAYER SHEAR
   ACROSS THE WATCH AREA...THUNDERSTORMS EXPECTED TO INCREASE IN NUMBER
   AND INTENSITY REMAINDER OF AFTERNOON.  SUPERCELLS INCLUDING
   TORNADOES WILL BE LIKELY GIVEN THE STRONG SHEAR IN PLACE.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 22035.
   
   
   ...HALES
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