SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 59
   NWS STORM PREDICTION CENTER NORMAN OK
   1100 PM CST FRI MAR 10 2006
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN AND WESTERN ARKANSAS
          SOUTH CENTRAL MISSOURI
          SOUTHEAST OKLAHOMA
   
   EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1100 PM
   UNTIL 500 AM CST.
   
   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 60
   STATUTE MILES EAST AND WEST OF A LINE FROM 10 MILES SOUTH
   SOUTHEAST OF DE QUEEN ARKANSAS TO 30 MILES NORTH OF WEST PLAINS
   MISSOURI.  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 58...
   
   DISCUSSION...SEVERE THUNDERSTORMS EASTERN OK WILL CONTINUE TO
   DEVELOP NEWD OVERNIGHT AS VERY STRONG LLJ IS RAPIDLY SPREADING
   MOISTURE AND INSTABILITY NWD THRU INTO LOWER MO VALLEY.  WITH STRONG
   DEEP LAYER SHEAR...SUPERCELLS ARE POSSIBLE ENHANCING THE LARGE HAIL
   AND WIND DAMAGE 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 500. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...HALES