MESOSCALE DISCUSSION 0745
   NWS STORM PREDICTION CENTER NORMAN OK
   0538 PM CDT MON MAY 07 2007
   
   AREAS AFFECTED...PARTS OF SOUTH TX
   
   CONCERNING...SEVERE POTENTIAL...WATCH LIKELY 
   
   VALID 072238Z - 072345Z
   
   THUNDERSTORM CLUSTERS THAT DEVELOPED ALONG THE EAST SLOPES OF THE
   HIGHER TERRAIN OF MEXICO...ABOUT 60 MI WEST OF THE BORDER...HAVE
   MADE A MARKED MOVE TO THE EAST AS UPSTREAM CONVECTION OVER THE
   MOUNTAINS MERGED WITH UPSLOPE INITIATION.  DEEP ELY FLOW INTO THIS
   ACTIVITY...ALONG WITH GRADUAL STRENGTHENING OF LLJ SHOULD PROVE
   FAVORABLE FOR PROPAGATION EAST OF THE RIO GRANDE OVER THE NEXT
   ONE-TWO HOURS.  SUFFICIENT SHEAR EXISTS FOR SUPERCELLS...AND
   POSSIBLY TORNADOES.
   
   ..DARROW.. 05/07/2007
   
   
   ATTN...WFO...CRP...EWX...
   
   29430116 29890039 29619960 28639922 27789952 28060029