SPC AC 211952
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0152 PM CST FRI NOV 21 2003
   
   VALID 212000Z - 221200Z.
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS/FORECAST...
   UPPER TROUGH DIGGING SWD THROUGH THE PAC NW WILL CONTINUE INTO THE
   INTERMOUNTAIN WEST AND CNTRL ROCKIES WHILE STRENGTHENING THROUGH
   TONIGHT.  STEEP LAPSE RATES ASSOCIATED WITH THE SYSTEM WILL ALSO
   SPREAD SEWD WITHIN A ZONE OF LARGE SCALE LIFT. AS A RESULT...ISOLD
   LIGHTING STRIKES ARE POSSIBLE MAINLY THROUGH EARLY EVENING FROM THE
   NRN GREAT BASIN INTO THE NRN ROCKIES.  ELSEWHERE...RETURN FLOW IS
   EXPECTED TO INCREASE ACROSS THE LOWER MS VLY AHEAD OF THE
   APPROACHING WRN TROUGH.  WHILE BOUNDARY LAYER MOISTURE ADVECTION
   WILL STRENGTHEN...A STRONG CAP IN PLACE WILL PRECLUDE TSTMS THROUGH
   12 UTC SATURDAY.
   
   ..RACY.. 11/21/2003
   
   ...NOTICE...
   FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND
   LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK
   GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO
   HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3.  THE
   INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED.
   
   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED FOR 0100Z