MESOSCALE DISCUSSION 0711
   NWS STORM PREDICTION CENTER NORMAN OK
   0616 PM CDT SAT MAY 05 2007
   
   AREAS AFFECTED...SOUTHERN NEB...KS...NWRN OK
   
   CONCERNING...TORNADO WATCH 232...234...235...
   
   VALID 052316Z - 060015Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH
   232...234...235...CONTINUES.
   
   SUPERCELLS CONTINUE TO GENERATE ACROSS NWRN OK/SCNTRL KS ALONG
   DRYLINE.  VERY STEEP LOW LEVEL LAPSE RATES ACROSS THE TX
   PANHANDLE/WRN KS HAVE ALLOWED THIS BOUNDARY TO ORIENT IN A SW-NE
   FASHION WHICH APPEARS TO BE CONDUCIVE FOR LONG-LIVED PARCEL
   RESIDENCE TIME IN MOST FAVORED ZONE OF CONVERGENCE.  POTENTIAL FOR
   TORNADOES REMAINS HIGH WITHIN HIGH INSTABILITY AIRMASS DOWNSTREAM
   INTO PORTIONS OF CNTRL KS AND SOUTH CENTRAL NEB.  THERE IS SOME
   REASON TO BELIEVE THAT ADDITIONAL DEVELOPMENT MAY SOON OCCUR ACROSS
   THE ERN TX PANHANDLE AS MUCH HIGHER BOUNDARY LAYER MOISTURE IS NOW
   SURGING NWWD THROUGH CDS WITH 68F TD AT 23Z.
   
   ..DARROW.. 05/05/2007
   
   
   ATTN...WFO...TOP...ICT...OUN...GID...DDC...AMA...
   
   35990019 37429981 39979861 39779742 38449768 37179868
   35959967