MESOSCALE DISCUSSION 0433
   NWS STORM PREDICTION CENTER NORMAN OK
   0326 PM CDT THU APR 22 2004
   
   AREAS AFFECTED...SERN OK...NWRN AR
   
   CONCERNING...TORNADO WATCH 104...
   
   VALID 222026Z - 222130Z
   
   ...SUPERCELLS ARE INTENSIFYING OVER NERN OK...
   
   SEWD-MOVING COLD FRONT HAS ALL BUT SLOWED ITS PROGRESS ACROSS NWRN
   PORTIONS OF WW.  LATEST RADAR/SFC DATA SUGGESTS DRY LINE MAY BE
   LIFTING NWWD ACROSS PORTIONS OF NCNTRL TX/SCNTRL OK...ALLOWING MORE
   SELY LOW LEVEL COMPONENT AND ENHANCED SHEAR TO DEVELOP ACROSS SRN
   HALF OF WW.
   
   ISOLATED STORMS ARE INTENSIFYING ALONG COLD FRONT NEAR TUL. 
   SUSTAINED CONVERGENCE ALONG THIS ZONE SHOULD ALLOW ACTIVITY TO
   CONTINUE STRENGTHENING OVER THE NEXT FEW HOURS AS IT MOVES EWD INTO
   NWRN AR.  OTHER DEVELOPMENT IS LIKELY ALONG COLD FRONT SW OF THIS
   REGION...THEN SWD ALONG DRY LINE BY 00Z.
   
   ..DARROW.. 04/22/2004
   
   
   ATTN...WFO...LZK...TSA...OUN...
   
   35129716 36339528 36139276 34959275 34809445 33939727