MESOSCALE DISCUSSION 0756
   NWS STORM PREDICTION CENTER NORMAN OK
   1143 AM CDT THU MAY 12 2011
   
   AREAS AFFECTED...N-CNTRL THROUGH SRN TX
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 288...289...
   
   VALID 121643Z - 121815Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
   288...289...CONTINUES.
   
   THREAT FOR DAMAGING WIND AND ISOLATED LARGE HAIL WILL PERSIST MAINLY
   ACROSS SERN THROUGH SRN TX NEXT FEW HOURS.
   
   EXTENSIVE FORWARD PROPAGATING SQUALL LINE SHOULD CONTINUE THROUGH
   REMAINDER OF SERN AND SRN TX SUPPORTED BY A DESTABILIZING BOUNDARY
   LAYER. LATEST OBJECTIVE ANALYSIS INDICATE MLCAPE FROM 1500 J/KG OVER
   SERN TX TO 2500+ J/KG OVER SRN TX ALONG WITH STEEP LAPSE RATES. VWP
   DATA IMMEDIATELY BEHIND THE LINE SHOW A 40 KT WLY REAR INFLOW JET
   WHICH WILL MAINTAIN STRONG CONVERGENCE ALONG GUST FRONT AND AUGMENT
   DAMAGING WIND POTENTIAL. EXTENT OF FURTHER DEVELOPMENT ALONG NRN END
   OF OUTFLOW BOUNDARY INTO N-CNTRL AND NERN TX REMAINS MORE UNCERTAIN.
   
   ..DIAL.. 05/12/2011
   
   
   ATTN...WFO...HGX...FWD...CRP...EWX...BRO...
   
   LAT...LON   27629952 28609814 29669711 30749685 32279699 32369565
               30039475 28229663 26869885 27629952