MESOSCALE DISCUSSION 0594
   NWS STORM PREDICTION CENTER NORMAN OK
   0315 PM CDT TUE APR 26 2011
   
   AREAS AFFECTED...EASTERN TX PANHANDLE TO WESTERN NORTH TX AND
   WESTERN/SOUTHERN OK
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 262015Z - 262145Z
   
   AT LEAST AN ISOLATED SEVERE THREAT...IN THE FORM OF SEVERE
   HAIL/DAMAGING WINDS...IS EXPECTED TO INCREASE THROUGH LATE AFTERNOON
   FROM THE EASTERN TX PANHANDLE INTO THE WESTERN PART OF NORTH TX AS
   WELL AS WESTERN/SOUTHERN OK. WHILE THE SEVERE THREAT MAY TEND TO
   REMAIN SOMEWHAT MARGINAL/ISOLATED...A WATCH MAY BE NEEDED.
   
   TIED TO AN AMPLIFYING SHORTWAVE TROUGH/ATTENDANT EASTWARD-RACING JET
   STREAK...IMPLIED LARGE SCALE FORCED ASCENT SEEMS READILY TIED TO
   INCREASING WELL-MIXED CU FIELD ACROSS THE TX PANHANDLE. WHILE TOTAL
   BUOYANCY WILL REMAIN MODEST /GENERALLY 500 J PER KG MLCAPE OR LESS/
   AMID 40S F SURFACE DEWPOINT...VERY STEEP LOW/MID LEVEL LAPSE RATES
   IN THE PRESENCE OF STRONG SPEED/DIRECTIONAL SHEAR WILL SUPPORT
   ORGANIZED/SUSTAINED RELATIVELY LOW-TOPPED STORMS INTO EARLY
   EVENING...WITH THE MOST ROBUST UPDRAFTS CAPABLE OF SEVERE
   HAIL/WINDS. A WATCH COULD BE NEEDED.
   
   ..GUYER.. 04/26/2011
   
   
   ATTN...WFO...FWD...OUN...SJT...LUB...AMA...
   
   LAT...LON   36669998 35779882 35349665 33279800 33319951 33870083
               36680176 36669998