MESOSCALE DISCUSSION 0722
   NWS STORM PREDICTION CENTER NORMAN OK
   0750 AM CDT SUN MAY 06 2007
   
   AREAS AFFECTED...NWRN TX...WRN OK
   
   CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY 
   
   VALID 061250Z - 061415Z
   
   ISOLATED SEVERE STORMS PERSIST ALONG RESIDUAL FRONT/OUTFLOW ACROSS
   NWRN TX AND WRN OK THIS MORNING. AT PRESENT...GREATEST HAZARD FROM
   THIS ACTIVITY APPEARS TO BE LARGE HAIL. HOWEVER...CHANCE OF DAMAGING
   WINDS/TORNADO MAY INCREASE AS THE MORNING PROGRESSES. A WATCH IS NOT
   CURRENTLY PLANNED BUT MAY BE NEEDED IF STORM COVERAGE/INTENSITY
   INCREASES.
   
   PARTICULARLY LONG-LIVED SUPERCELL NOW MOVING INTO WRN DEWEY AND
   CUSTER COUNTIES IN OK INITIATED OVER 6 HOURS AGO NEAR DRYLINE WEST
   OF LBB. ADDITIONAL UPDRAFTS CONTINUE TO INITIATE ALONG THE DECAYING
   WIND SHIFT ACROSS THE ERN TX PNHDL AND NWRN TX AND THEN TRACK NEWD
   INTO WRN OK. THIS ACTIVITY WAS BEING SUSTAINED BY DEEP-LAYER LARGE
   SCALE ASCENT BENEATH RIGHT ENTRANCE REGION OF MID/UPPER JET ACROSS
   THE SRN/CNTRL HIGH PLAINS. PRONOUNCED LOW LEVEL MOISTURE FLUX INTO
   THE AREA...AND VERY STRONG DEEP-LAYER SHEAR SHOULD CONTINUE TO
   SUPPORT OCCASIONALLY GREATER UPDRAFT ORGANIZATION AND PERSISTENCE.
   WHILE TORNADO CHANCES CURRENTLY APPEAR LIMITED...POTENTIALLY
   STRONGER LOW LEVEL SHEAR ALONG RESIDUAL OUTFLOW BOUNDARY...NEAR THE
   OK/KS BORDER...MAY RESULT IN A LOCALLY GREATER THREAT AS STORMS
   DEVELOP INTO THIS AREA.
   
   ..CARBIN.. 05/06/2007
   
   
   ATTN...WFO...OUN...LUB...AMA...
   
   35439901 34719960 33950031 33230121 33820112 35180010
   35679989 36959897 36949823 36559818