MESOSCALE DISCUSSION 0413
   NWS STORM PREDICTION CENTER NORMAN OK
   0348 AM CST SUN MAR 27 2005
   
   AREAS AFFECTED...UPPER TX COAST INTO SWRN LA
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 95...
   
   VALID 270948Z - 271115Z
   
   TSTMS WILL CONTINUE TO ADVANCE EWD ACROSS WS 95 THE NEXT FEW HOURS. 
   A FEW OF THE TSTMS COULD CONTAIN LARGE HAIL.
   
   UPPER LOW CONTINUES TO SETTLE ESEWD WITH A CENTER VCNTY KABI AT
   0930Z. VWP/PROFILERS DEPICT THE CORE OF THE 80-90 KT H5 JET CURVING
   ACROSS SERN TX WITH VIGOROUS UVV IN EXIT REGION OVER THE SABINE RVR
   VLY.  THIS HAS SUPPORTED THE DEVELOPMENT OF TSTMS THIS MORNING...
   WITH THE STRONGEST STORMS ALONG THE H85-H7 FRONT.
   
   ELEVATED INSTABILITY HAS PROVEN SUFFICIENT FOR TSTMS TO PULSE AND
   HAIL COULD OCCUR WITH MORE INTENSE CELLS.  STRONGER TSTMS SHOULD
   BEGIN TO FORM OFFSHORE SERN TX IN A COUPLE OF HOURS...THEN LIKELY
   DEVELOP NWD ALONG THE SURFACE-H85 FRONT INTO PORTIONS OF SWRN LA
   TOWARD 12Z.  THOUGH IT IS NOT ENTIRELY CLEAR IF STORMS CAN BECOME
   LONGER-LIVED THAN THEY HAVE BEEN SINCE 06Z...EXPERIMENTAL
   LEFT-MOVING SUPERCELLS VALUES SUGGEST THAT A FEW LEFT-MOVING HAIL
   PRODUCING MEMBERS WILL BE POSSIBLE ACROSS LA LATER THIS MORNING.
   
   THE SEVERE THREAT WILL BE ENDING SHORTLY FROM W-E ACROSS THE UPPER
   TX COAST AND THE WW WILL BE TRIMMED BY 11Z.
   
   ..RACY.. 03/27/2005
   
   
   ATTN...WFO...LCH...HGX...
   
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