STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK
   DAY 3 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWK48 KWNS.
    
   VALID 211200-221200
    
   THERE IS A SLIGHT RISK OF SEVERE TSTMS ACROSS THE CENTRAL AND NRN
   PLAINS.
   
   ...SYNOPSIS...
   A BROAD MID/UPPER LEVEL TROUGH OVER THE NRN INTERMOUNTAIN REGION
   WILL PERSIST FROM DAY 2 INTO DAY 3...AS AN EMBEDDED SHORTWAVE
   TROUGH ROTATES NEWD FROM WY/MT TO THE DAKOTAS/MN.  IN ASSOCIATION
   WITH THIS SHORTWAVE TROUGH...A SURFACE LOW IS FORECAST TO DEVELOP
   NEWD ACROSS MANITOBA WHILE A TRAILING COLD FRONT MOVES SEWD ACROSS
   THE NRN HIGH PLAINS/DAKOTAS.  S OF THIS AREA...REMNANTS OF THE SRN
   STREAM WILL CONTINUE FROM THE FOUR CORNERS TO THE CENTRAL PLAINS...
   WHERE MODERATE WSWLY MID LEVEL FLOW OVER THE CENTRAL ROCKIES WILL
   MAINTAIN A LEE TROUGH/DRYLINE FROM THE TX PANHANDLE NWD TO WRN NEB.
   
   STEEP MID LEVEL LAPSE RATES WILL OVERSPREAD THE PLAINS ABOVE A
   MOIST BOUNDARY LAYER WITH DEW POINTS IN THE 60S TO NEAR 70... AND
   THE NET RESULT WILL BE AN AXIS OF MODERATE TO STRONG INSTABILITY
   ACROSS THE PLAINS STATES.  THE MORE LIKELY AREA FOR STORM
   INITIATION WILL BE ACROSS THE DAKOTAS/WRN MN ALONG THE COLD
   FRONT...WHERE FOCUSED ASCENT MAY SUPPORT A LINE OF STORMS WITH
   DAMAGING WINDS AND LARGE HAIL.  FARTHER S...MODEL FORECASTS OF
   VERTICAL SHEAR AND INSTABILITY APPEAR FAVORABLE FOR SUPERCELLS FROM
   NEB TO THE TX PANHANDLE.  HOWEVER...STORM INITIATION IS MORE
   UNCERTAIN THIS AREA GIVEN A WARM ELEVATED MIXED LAYER/STRONGER CAP.
    
   ..THOMPSON.. 06/19/03
    
   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED FOR 1200Z