DAY 4-8 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0328 AM CDT FRI MAY 20 2005
   
   VALID 231200Z - 281200Z
   
   ...DISCUSSION...
   
   UPPER PATTERN WILL CHANGE LITTLE THROUGH THIS PERIOD WITH THE UPPER
   TROUGH DOMINATING THE EAST AND A RIDGE OVER THE SWRN STATES. SEVERAL
   SHORTWAVE TROUGHS WILL MOVE OVER THE RIDGE AND THEN SEWD THROUGH THE
   CNTRL AND NRN PLAINS THROUGH OH VALLEY. WHILE SOME SEVERE WEATHER
   WILL BE POSSIBLE FROM PARTS OF THE CNTRL AND SRN PLAINS EWD THROUGH
   THE OH AND TN VALLEYS...UNCERTAINTIES REGARDING DEGREE OF MOISTURE
   RETURN AND TIMING OF THE SHORTWAVES SUGGEST PREDICTABILITY IS TOO
   LOW TO WARRANT INCLUSION WITHIN A HIGHER END OUTLOOK AT THIS TIME.
   
   ..DIAL.. 05/20/2005