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Particularly Dangerous Situation (PDS) Tornado Watch 131
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WW0131 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 131
   NWS STORM PREDICTION CENTER NORMAN OK
   1100 AM CDT TUE MAR 18 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SMALL PART OF SOUTH CENTRAL ARKANSAS
          PARTS OF NORTHERN AND WESTERN LOUISIANA
          LARGE PART OF SOUTHEAST TEXAS
          COASTAL WATERS
   
   EFFECTIVE THIS TUESDAY MORNING AND EVENING FROM 1100 AM UNTIL 700
   PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE 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 90 STATUTE
   MILES EITHER SIDE OF A LINE FROM 55 MILES WEST SOUTHWEST OF
   COLLEGE STATION TEXAS TO MONROE LOUISIANA.  FOR A COMPLETE
   DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
   (WOUS64 KWNS WOU1).
   
   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...CONTINUE...WW 130...
   
   DISCUSSION...AS STRONG UPPER SYSTEM APPROACHES SRN
   TX...THUNDERSTORMS WILL RAPIDLY INCREASE IN NUMBER AND INTENSITY
   AHEAD OF COLD FRONT NOW MOVING EWD ACROSS SRN TX.  VERY STRONG DEEP
   LAYER SHEAR PROFILES COUPLED WITH A DEEP MOIST MDTLY UNSTABLE AIR
   MASS SUPPORTS TORNADIC SUPERCELLS.  POTENTIAL FOR STRONG TORNADOS TO
   OCCUR GIVEN THE STRENGTH OF THE WINDS FIELDS AND FAVORABLE
   THERMODYNAMICS.
   
   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 24040.
   
   
   ...HALES
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