MESOSCALE DISCUSSION 0682
   NWS STORM PREDICTION CENTER NORMAN OK
   0642 PM CDT SAT MAY 18 2013
   
   AREAS AFFECTED...CNTRL AND S-CNTRL NE / FAR N-CNTRL KS
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 182342Z - 190015Z
   
   PROBABILITY OF WATCH ISSUANCE...60 PERCENT
   
   SUMMARY...A DMGG WIND...LARGE HAIL...AND POSSIBLY A TORNADO THREAT
   WILL EVENTUALLY MOVE OUT OF WW 170 AND INTO PORTIONS OF CNTRL NE SWD
   INTO FAR N-CNTRL KS.  EITHER A WATCH EXTENSION-IN-AREA OR AN
   ADDITIONAL WATCH WILL BE NEEDED TO ADDRESS THIS THREAT.
   
   DISCUSSION...RADAR MOSAIC SHOWS A CLUSTER OF STRONG-SEVERE STORMS
   NEAR THE N-CNTRL KS/S-CNTRL NE STATE LINE AND THESE STORMS ARE
   MOVING NEWD AND EVENTUALLY MOVE INTO NE CURRENTLY OUTSIDE OF TORNADO
   WATCH 170.  THE ENVIRONMENT DOWNSTREAM OF THESE STORMS WILL BE
   SUPPORTIVE OF DMGG WIND GUSTS...LARGE HAIL AND POSSIBLY A
   TORNADO...GIVEN THE ADEQUATE SHEAR PROFILES AND AVAILABLE
   INSTABILITY IN PLACE OVER THE REGION.  AS SUCH...EXPECTING AT LEAST
   A LARGE HAIL AND DMGG WIND GUST THREAT TO MOVE INTO THE AREA FROM
   THE SW.
   
   ..SMITH/CORFIDI.. 05/18/2013
   
   
   ATTN...WFO...OAX...TOP...GID...LBF...
   
   LAT...LON   39609849 41170010 41830000 41979891 41179798 40089736
               39529756 39609849