MESOSCALE DISCUSSION 0279
   NWS STORM PREDICTION CENTER NORMAN OK
   0452 PM CDT THU MAR 26 2009
   
   AREAS AFFECTED...NCNTRL TX...SRN OK
   
   CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 
   
   VALID 262152Z - 262315Z
   
   LARGE HAIL AND ISOLATED WIND DAMAGE WILL BE POSSIBLE ACROSS NCNTRL
   TX THROUGH EARLY THIS EVENING IF STORMS CAN INITIATE. A TORNADO MAY
   ALSO OCCUR ESPECIALLY IF A SUPERCELL CAN DEVELOP. A WW MAY BECOME
   NECESSARY LATE THIS AFTERNOON.
   
   LATEST SFC ANALYSIS SHOWS A MOIST AXIS EXTENDING NWWD INTO THE
   DALLAS-FORT WORTH AREA WITH A THERMAL AXIS LOCATED IN WCNTRL TX.
   BETWEEN THE TWO...A DRYLINE IS SITUATION FROM NEAR STEPHENVILLE
   SSWWD INTO THE TX HILL COUNTRY. THE CAP HAS WEAKENED RIGHT ALONG THE
   DRYLINE ACCORDING TO THE RUC AND STORM INITIATION MAY OCCUR BY EARLY
   THIS EVENING. THE ENVIRONMENT IS CHARACTERIZED BY ABOUT 1000 J/KG OF
    MLCAPE WITH 60 TO 65 KT OF VERTICAL SHEAR. MID-LEVEL LAPSE RATES
   ARE QUITE STEEP SUGGESTING CONDITIONS ARE FAVORABLE FOR SUPERCELL
   DEVELOPMENT WITH LARGE HAIL POTENTIAL. ISOLATED WIND DAMAGE AND A
   TORNADO MAY ALSO OCCUR IF A SUPERCELL CAN ORGANIZE.
   
   ..BROYLES.. 03/26/2009
   
   
   ATTN...WFO...FWD...OUN...EWX...SJT...
   
   LAT...LON   31249812 32059781 33259766 33789760 34979771 35179808
               34949852 34529867 33559871 32729879 31799893 31199892
               30979848 31249812