STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK
   DAY 3 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWK48 KWNS.
    
   VALID 131200-141200
    
   THERE IS A SLIGHT RISK OF SEVERE TSTMS FOR MUCH OF OK AND KS...AS
   WELL AS AJACENT PARTS OF NEB...MO..AND AR.
   
   ...SYNOPSIS...
   THE DEEP LOW OVER NEW ENGLAND WILL GRADUALLY FILL AND MOVE SLOWLY
   EWD.  UPSTREAM FROM THIS LOW...A MID LEVEL RIDGE WILL REMAIN OVER
   THE CENTRAL PLAINS...AND ANOTHER SHORTWAVE TROUGH WILL APPROACH CA. 
   WLY MID LEVEL FLOW OVER THE CENTRAL/SRN ROCKIES WILL MAINTAIN A LEE
   CYCLONE INVOF THE OK PANHANDLE.  E OF THIS LOW...LOW-LEVEL MOISTURE
   WILL SPREAD NWD FROM TX/OK TO KS/SRN NEB/WRN MO/WRN AR.  THE
   COMBINATION OF STEEP MID LEVEL LAPSE RATES AND INCREASING LOW-LEVEL
   MOISTURE ACROSS THE SRN/CENTRAL PLAINS WILL RESULT IN SUFFICIENT
   INSTABILITY FOR SEVERE THUNDERSTORMS.
   
   ...PLAINS AREA...
   EXPECT SEVERAL CLUSTERS OF STORMS TO FORM AND MOVE E/SEWD ACROSS
   KS/OK DURING THE PERIOD IN ASSOCIATION WITH EMBEDDED SPEED MAXIMA
   MOVING OVER THE MID LEVEL RIDGE.  THESE STORM CLUSTERS WILL BE
   CAPABLE OF PRODUCING LARGE HAIL AND DAMAGING WINDS.  DEEP LAYER
   SHEAR AND INSTABILITY ARE ALSO FORECAST TO BE SUFFICIENT FOR
   SUPERCELLS...WHICH WOULD ENHANCE THE THREAT FOR LARGE HAIL WHERE
   MORE DISCRETE STORMS FORM.  THE TORNADO THREAT APPEARS LESS CERTAIN
   AND WILL LIKELY DEPEND ON THE DEGREE OF LOW-LEVEL MOISTENING ACROSS
   KS/OK AND THE STRENGTH OF THE LOW-LEVEL SHEAR ALONG A NW-SE
   ORIENTED BAROCLINIC ZONE ACROSS KS/NE OK...AS WELL AS THE PRESENCE
   OF RESIDUAL OUTFLOW BOUNDARIES.   
    
   ..THOMPSON.. 05/11/03
    
   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED FOR 1200Z