MESOSCALE DISCUSSION 0632
   NWS STORM PREDICTION CENTER NORMAN OK
   0304 PM CDT WED APR 29 2009
   
   AREAS AFFECTED...SERN OK/SWRN AR/NWRN LA/NERN TX
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 209...
   
   VALID 292004Z - 292100Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 209
   CONTINUES.
   
   SEVERE THREAT CONTINUES AHEAD OF THE SERN OK/NERN TX BOW...AND IS
   INCREASING ACROSS N CENTRAL TX.  NEW WW MAY BE REQUIRED...WITH WW
   209 SCHEDULED TO EXPIRE AT 29/21Z.
   
   LATEST RADAR LOOP CONTINUES TO SHOW A BOWING MCS MOVING ACROSS SERN
   OK/NERN TX INTO SWRN AR ATTM.  DOWNSTREAM AIRMASS AND SELY LOW-LEVEL
   INFLOW ACROSS AR SHOULD MAINTAIN CONVECTION -- AND PERHAPS A LOCAL
   SEVERE POTENTIAL -- AS IT MOVES ESEWD INTO AR.
   
   FARTHER W INTO WRN N TX...STORMS CONTINUE TO DEVELOP S OF THE
   TRAILING PORTION OF THE SERN OK/NERN TX BOW...WHERE MODERATE
   INSTABILITY IS INDICATED.  STORMS SHOULD MOVE EWD WITH TIME AND
   APPROACH AREAS OF N CENTRAL TX CURRENTLY WITHIN WW 209.
   
   THESE TWO THREAT AREAS WILL LIKELY REQUIRE EITHER A NEW WW
   ISSUANCE...LOCAL EXTENSION OF ONGOING WW 209 AND 210...OR SOME
   COMBINATION THEREOF.
   
   ..GOSS.. 04/29/2009
   
   
   ATTN...WFO...LZK...SHV...TSA...FWD...
   
   LAT...LON   32369641 32749734 33399703 33649548 34419463 34479225
               32899216 32249284 32369641