MESOSCALE DISCUSSION 1342
   NWS STORM PREDICTION CENTER NORMAN OK
   0343 PM CDT TUE JUN 21 2011
   
   AREAS AFFECTED...CNTRL/ERN TX...NWRN LA
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 212043Z - 212145Z
   
   DMGG WINDS AND LARGE HAIL WILL BECOME POSSIBLE ACROSS CNTRL/ERN
   TX...WHILE A SEPARATE ONGOING CLUSTER IN ERN TX MAY CONGEAL AND
   BECOME BETTER ORGANIZED ACROSS A SMALL PORTION OF NWRN LA. AREA IS
   BEING MONITORED FOR A POSSIBLE WW. 
   
   CONVECTION HAS BEEN ONGOING ALONG A REMNANT OUTFLOW
   BOUNDARY...OBSERVED ON VISIBLE SATELLITE IMAGERY NEAR SHV SWWD TO
   ABOUT ACT...WHILE A SEPARATE BOUNDARY IS OBSERVED NEAR LFK WWD.
   MEANWHILE...A NNE-WSW ORIENTED FRONT IS LOCATED NEAR DALLAS. THE
   AFOREMENTIONED SURFACE FEATURES MAY ALL SERVE AS INITIAL FOCI FOR
   INCREASING CONVECTION THIS EVENING...AS EVIDENCED BY THE NEWLY
   AGITATED CUMULUS FIELD WEST OF THE ONGOING CONVECTION ACROSS ERN TX.
   MESOANALYSIS SHOWS A VERY UNSTABLE NEARLY UNCAPPED AIR MASS...THOUGH
   WEAK HEIGHT RISES APPEAR TO BE HINDERING MORE WIDESPREAD
   DEVELOPMENT. HOWEVER...A WEAK UPPER FEATURE NOTED IN SOUTHWESTERN TX
   ON 2030Z WV IMAGERY WILL PROGRESS EWD WITH TIME...AND MAY PROVIDE
   SUFFICIENT UPPER FORCING FOR A GRADUAL INCREASE IN CONVECTION AMIDST
   NUMEROUS SURFACE BOUNDARIES.
   
   ..HURLBUT.. 06/21/2011
   
   
   ATTN...WFO...SHV...HGX...FWD...
   
   LAT...LON   32969308 32049330 31559505 31059746 31249822 32239853
               32949734 33329596 33259458 32969398 32969308