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Tornado Watch 12
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WW0012 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 12
   NWS STORM PREDICTION CENTER NORMAN OK
   930 PM CST TUE FEB 10 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          A LARGE PART OF WESTERN AND NORTHERN ARKANSAS
          PARTS OF NORTHWESTERN LOUISIANA
          PARTS OF EASTERN OKLAHOMA
          A LARGE PART OF EASTERN TEXAS
   
   EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 930 PM
   UNTIL 500 AM CST.
   
   TORNADOES...HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
   MILES EAST AND WEST OF A LINE FROM 25 MILES NORTHEAST OF HARRISON
   ARKANSAS TO COLLEGE STATION TEXAS.  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.
   
   OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
   WATCH NUMBER 9...TORNADO WATCH NUMBER 10. WATCH NUMBER 9 10 WILL
   NOT BE IN EFFECT AFTER 930 PM CST. CONTINUE...WW 11...
   
   DISCUSSION...INTENSE S/WV TROUGH AND ASSOCIATED VERY STRONG MID/UPR
   WIND MAX WILL MOVE RAPIDLY EWD ACROSS SRN PLAINS TONIGHT. LINE OF
   SEVERE THUNDERSTORMS WITH EMBEDDED TORNADIC SUPERCELLS HAS DEVELOPED
   ERN OK INTO CENTRAL TX.  IN ADDITION TO WIDESPREAD DAMAGING WINDS
   ASSOCIATED WITH THE LINE...TORNADOS ARE ALSO LIKELY.  IN ADDITION
   POTENTIAL FOR MORE DISCRETE SUPERCELLS DEVELOPING AHEAD OF THE
   SQUALL LINE WHICH WOULD RESULT IN AN INCREASE POTENTIAL FOR STRONG
   TORNADOES.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 24045.
   
   
   ...HALES
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Page last modified: February 11, 2009
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