MESOSCALE DISCUSSION 0261
   NWS STORM PREDICTION CENTER NORMAN OK
   0334 PM CST SAT MAR 09 2013
   
   AREAS AFFECTED...NCNTRL TX THROUGH SCNTRL OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 49...
   
   VALID 092134Z - 092300Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 49
   CONTINUES.
   
   SUMMARY...THUNDERSTORMS WILL CONTINUE TO POSE A THREAT FOR ISOLATED
   DAMAGING WIND AND HAIL AS THEY MOVE THROUGH SCNTRL OK AND NCNTRL TX
   NEXT FEW HOURS. SWD DEVELOPMENT TOWARD CNTRL TX REMAINS POSSIBLE BY
   EARLY EVENING.
   
   DISCUSSION...STORMS HAVE INTENSIFIED AND BECOME BETTER ORGANIZED
   FROM NCNTRL TX THROUGH SCNTRL OK AS THEY INTERCEPT AXIS OF 800-1500
   J/KG MLCAPE. BOWING SEGMENTS AND SUPERCELL STRUCTURES ARE EVIDENT
   WITHIN THE LINE WHICH IS MOVING EAST AT 25-30 KT. NWD EXTENT OF THE
   SEVERE THREAT ACROSS CNTRL OK IS LIMITED BY A MORE STABLE
   REGIME...WHILE FARTHER SOUTH TOWARD CNTRL TX...A STRONGER CAP
   EXISTS. EFFECTIVE SHEAR AOA 45 KT IS MORE THAN SUFFICIENT FOR
   SUPERCELLS TO EVOLVE WITHIN THE LINE. PRIMARY THREAT REMAINS
   ISOLATED DAMAGING WIND AND HAIL. IT IS POSSIBLE THE TORNADO THREAT
   COULD UNDERGO SOME INCREASE DURING THE EARLY EVENING FROM SE OK INTO
   NCTRL/NERN TX AS STORMS BEGIN TO ENCOUNTER STRONGER LOW LEVEL SHEAR.
   
   ..DIAL.. 03/09/2013
   
   
   ATTN...WFO...TSA...FWD...OUN...SJT...
   
   LAT...LON   31759959 32939851 33929805 34959743 35089626 34419585
               31929745 31359833 31199989 31759959