DAY 4-8 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0337 AM CDT THU MAY 19 2005
   
   VALID 221200Z - 271200Z
   
   ...DISCUSSION...
   LONG-RANGE MODELS ARE OVERALL CONSISTENT WITH A SWRN U.S. RIDGE /
   NERN U.S. TROUGH THROUGH THE PERIOD.  HOWEVER... SIGNIFICANT
   DIFFERENCES EXIST WITH REGARDS TO STRENGTH / AMPLITUDE OF SWRN
   RIDGE.
   
   GFS APPEARS TO BE MOST FAVORABLE IN TERMS OF SEVERE THREAT...AS
   FLATTER UPPER RIDGE IS FORECAST ACROSS THE ROCKIES.  THIS YIELDS
   PERSISTENT LEE-SIDE LOW PRESSURE -- ALONG WITH STRONGER LOW-LEVEL
   MOISTURE RETURN.  THE ECMWF...HOWEVER...MAINTAINS MORE AMPLIFIED
   SWRN U.S. RIDGE -- LIMITING THE POTENTIAL FOR SIGNIFICANT MOISTENING
   / DESTABILIZATION ACROSS THE CENTRAL CONUS.  THEREFORE... MODEL
   INCONSISTENCIES PRECLUDE ISSUANCE OF A REGIONAL SEVERE OUTBREAK
   AREA.
   
   ..GOSS.. 05/19/2005