MESOSCALE DISCUSSION 0282
   NWS STORM PREDICTION CENTER NORMAN OK
   0656 PM CDT THU MAR 26 2009
   
   AREAS AFFECTED...PARTS OF LA AND EAST TX
   
   CONCERNING...TORNADO WATCH 71...
   
   VALID 262356Z - 270130Z
   
   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 71 CONTINUES.
   
   THE SEVERE THREAT WILL CONTINUE ACROSS TORNADO WATCH 71 AS AN MCS
   TRACKS EWD ACROSS CNTRL AND SRN LA THIS EVENING. THE TORNADO THREAT
   SHOULD INCREASE ACROSS THE SERN PART OF WW 71 AS CELLS MOVE ENEWD
   FROM THE GULF AND INLAND INTO THE CNTRL COAST OF LA FROM 0030 TO
   0100Z.
   
   LATEST SFC ANALYSIS AND RUC DATA SHOW DEWPOINTS NEAR 70 F AND
   MODERATE INSTABILITY ACROSS MOST OF THE SRN HALF OF LA. CONVECTION
   SHOULD INCREASE ACROSS THE VERY MOIST WARM SECTOR AS A VORTICITY MAX
   OVER SE TX MOVES ENEWD INTO SCNTRL LA. SEVERAL VIGOROUS SUPERCELLS
   ARE CURRENTLY LOCATED ABOUT 30 TO 50 STATUTE MILES SOUTH OF THE
   CNTRL LA COAST WILL MOVE INLAND BETWEEN 0030Z AND 0100Z. THE LATEST
   RUC DATA JUST AHEAD OF THESE STORMS SHOW STRONG LOW-LEVEL SHEAR AND
   LCL HEIGHTS BELOW 750 METERS SUGGESTING A TORNADO THREAT WILL EXIST
   AS THE STORMS MOVE INTO THE LAFAYETTE...NEW IBERIA...MORGAN CITY
   AREA EARLY THIS EVENING. ACCORDING TO WSR-88 VWPS...THE STRONGER
   LOW-LEVEL SHEAR PROFILES ARE NORTHEAST OF INTERSTATE 90 SUGGESTING
   THE TORNADO THREAT MAY INCREASE AS THE STORMS MOVE INLAND LATER THIS
   EVENING INTO AREAS SOUTH OF BATON ROUGE LA. 
   
   TORNADOES...WIND DAMAGE AND HAIL WILL BE POSSIBLE ACROSS THE
   REMAINDER OF TORNADO WATCH 71 WITH A GRADUAL DECREASE IN THE THREAT
   FROM WEST TO EAST THIS EVENING.
   
   ..BROYLES.. 03/26/2009
   
   
   ATTN...WFO...JAN...LIX...LCH...SHV...HGX...
   
   LAT...LON   32139188 31909190 31879204 31239195 31279181 31149169
               30909182 30389168 30119142 29999118 29689110 29539124
               28959146 29199159 29089193 29249209 29229250 29449319
               29429366 29239423 29499434 29889431 29909443 30069444
               30099464 30459471 30479451 31039466 31549509 31909542
               32139540 32129496 31889505 31839442 31959448 31959397
               31849381 31869340 31949331 31969315 32169306 32149229
               32299228 32299201 32139188