MESOSCALE DISCUSSION 1052
   NWS STORM PREDICTION CENTER NORMAN OK
   1126 AM CDT WED JUN 02 2004
   
   AREAS AFFECTED...SE...CNTRL THROUGH NW TX
   
   CONCERNING...SEVERE THUNDERSTORM POTENTIAL 
   
   VALID 021626Z - 021830Z
   
   SE THROUGH CNTRL AND NW TX ARE BEING MONITORED FOR THUNDERSTORM
   INITIATION. SUPERCELLS WITH LARGE HAIL...ISOLATED DAMAGING WIND
   GUSTS AND POSSIBLY AN ISOLATED TORNADO OR TWO WILL BE THE MAIN
   THREATS. A WW WILL BE NEEDED ONCE INITIATION SEEMS IMMINENT.
   
   LATE THIS MORNING A LARGE CONVECTIVE OUTFLOW BOUNDARY EXTENDS FROM
   THE SWRN GULF OF MEXICO NWWD THROUGH SE TX NEAR HOUSTON...CNTRL TX
   AND INTO NW TX JUST W OF MINERAL WELLS. THE ATMOSPHERE IN THE
   VICINITY OF THIS BOUNDARY CONTINUES TO DESTABILIZE WITH SURFACE
   DEWPOINTS IN THE LOW 70S...STEEP MID LEVEL LAPSE RATES AND SURFACE
   HEATING CONTRIBUTING TO MLCAPE FROM 3000 TO 3500 J/KG. MID LEVEL
   FLOW IS RELATIVELY WEAK AND GENERALLY NWLY AOB 20 KT. HOWEVER...
   SELY LOW LEVEL FLOW IN THE VICINITY OF THE OUTFLOW BOUNDARY VEERING
   TO NWLY AT 6 KM IS RESULTING IN SUFFICIENT DEEP LAYER SHEAR FOR
   SUPERCELLS GIVEN THE DEGREE OF INSTABILITY. LATEST VISIBLE IMAGERY
   SHOWS CUMULUS INCREASING IN VICINITY OF THE OUTFLOW BOUNDARY. AS CAP
   CONTINUES TO WEAKEN...A FEW STORMS MAY INITIATE WITHIN ZONE OF LOW
   LEVEL FORCING ALONG THIS BOUNDARY.
   
   ..DIAL.. 06/02/2004
   
   
   ATTN...WFO...LCH...HGX...FWD...OUN...EWX...SJT...
   
   28919528 29439652 30609820 33299971 33759881 32829775
   31279613 29889420