MESOSCALE DISCUSSION 0626
   NWS STORM PREDICTION CENTER NORMAN OK
   0609 AM CDT WED APR 29 2009
   
   AREAS AFFECTED...NWRN TX INTO S-CNTRL OK
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 208...
   
   VALID 291109Z - 291245Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 208
   CONTINUES.
   
   THROUGH 12-13Z...THE POTENTIAL FOR ISOLATED SEVERE HAIL AND LOCALLY
   STRONG WIND GUSTS WILL EXIST WITH MCS FROM THE LTS/SPS AREAS EWD
   TOWARD THE I-35 CORRIDOR OF S-CNTRL OK AND PERHAPS FAR N-CNTRL TX.
   
   A LOOSELY ORGANIZED MCS CONTINUES TO EVOLVE AS OF 1050Z WITH LEADING
   EDGE AND MOST INTENSE PORTION OF SYSTEM OVER COMANCHE AND COTTON
   COUNTIES OK INTO WICHITA COUNTY TX.  SYSTEM MOTION WAS EWD AT 20-25
   KT.  LATEST MESOANALYSIS INDICATES MCS TRACK IS WELL CORRELATED WITH
   POSITION OF SURFACE WARM FRONT WHICH EXTENDS DOWNSTREAM FROM NEAR
   FSI ESEWD TO NEAR ADM INTO NERN TX.
   
   REGIONAL VWP/PROFILER DATA INDICATE A GRADUAL VEERING OF 45-55 KT
   LLJ WHICH SHOULD CONTINUE TO MAINTAIN THE INFLUX OF A RATHER MOIST
   AIR MASS /PW VALUES AROUND 1.5 INCHES/ INTO MCS.  MOREOVER...
   INCREASED FORCING FOR ASCENT ASSOCIATED WITH SHORT WAVE TROUGH
   LIFTING NEWD THROUGH SWRN/WRN TX SHOULD SERVE TO SUSTAIN SYSTEM
   EWD/SEWD THIS MORNING.  CURRENT FREDRICK OK VWP INDICATES
   CONSIDERABLE VEERING OF WINDS WITH HEIGHT...RESULTING IN AMPLE LOW
   AND DEEP LAYER SHEAR FOR STORM ORGANIZATION/ROTATION.  AS
   SUCH...ENVIRONMENT WILL CONTINUE TO FAVOR THE POTENTIAL FOR
   TRANSIENT BOWING/SUPERCELL STRUCTURES WITH THE THREAT FOR DAMAGING
   WINDS AND HAIL.
   
   ..MEAD.. 04/29/2009
   
   
   ATTN...WFO...FWD...OUN...LUB...AMA...
   
   LAT...LON   33570021 34140057 35050039 35469951 35619763 35179707
               34349702 33779721 33489820 33570021