SPC AC 080527
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1127 PM CST SUN DEC 07 2003
   
   VALID 081200Z - 091200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 40 WNW 4CR 85 ESE SOW
   35 SW SOW 45 WSW GCN 15 NNE CDC 40 WNW 4HV 35 NNE CNY 10 W ASE 55
   ESE ASE 40 SW COS 30 NW TAD 35 SSW RTN 25 SSE LVS 40 ENE ONM.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 NNE SHV 65 NNE CLL
   TPL 45 ESE BWD 20 WNW SEP 30 N MWL 40 W ADM 20 ESE CSM GAG 30 WNW
   P28 20 SE MHK 45 S P35 50 S UIN 15 WSW STL 55 WNW CGI 15 WSW JBR 25
   NNE PBF 35 NNE SHV.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   STRONG VORT MAX WITHIN THE BASE OF MAIN MID-LEVEL TROUGH WILL MOVE
   EWD ACROSS THE SOUTHERN ROCKIES AND INTO THE SRN PLAINS THIS PERIOD.
   IN RESPONSE...BAROCLINIC ZONE IS FORECAST TO MOVE SEWD ACROSS THE
   REGION.  SURFACE LOW ALONG THE FRONT -- INITIALLY OVER SERN CO -- IS
   FORECAST TO STRENGTHEN AND MOVE INTO NERN OK BY THE END OF THE
   PERIOD...ALLOWING COLD FRONT TO MOVE INTO CENTRAL TX.
   
   ...OZARKS REGION OF SRN MO / NRN AR...
   SLY LOW-LEVEL JET IS FORECAST TO INTENSIFY ACROSS ERN OK / WRN AR
   DURING THE EVENING AHEAD OF DEVELOPING SURFACE LOW AND ASSOCIATED 
   UPPER TROUGH.  ISENTROPIC LIFTING OF HIGHER THETA-E AIR SPREADING
   NWD FROM THE GULF SHOULD RESULT IN SUFFICIENT DESTABILIZATION FOR
   THE DEVELOPMENT OF ELEVATED THUNDERSTORMS DURING THE LATTER HALF OF
   THE PERIOD -- PARTICULARLY AFTER MIDNIGHT.  ALTHOUGH ELEVATED CAPE
   WILL LIKELY REMAIN BELOW 500 J/KG...MODERATE SHEAR ANTICIPATED IN
   THE CLOUD-BEARING LAYER /AROUND 30 KT/ MAY SUPPORT A FEW STRONGER /
   ORGANIZED UPDRAFTS.  ALTHOUGH ONE OR TWO OF THE STRONGEST CELLS MAY
   PRODUCE MARGINALLY-SEVERE HAIL...OVERALL THREAT IS FORECAST TO
   REMAIN BELOW SLIGHT RISK THRESHOLDS.
   
   ...FOUR CORNERS REGION...
   THUNDERSTORMS NOW OCCURRING ACROSS SRN NV / SRN UT WILL LIKELY
   SPREAD EWD / SEWD ACROSS THE FOUR CORNERS REGION AHEAD OF STRONG
   VORT MAX AT THE BASE OF UPPER TROUGH MOVING EWD ACROSS THE WRN
   CONUS. COLD TEMPERATURES ALOFT ASSOCIATED WITH THIS FEATURE WILL
   MAINTAIN STEEP LAPSE RATES / MARGINAL INSTABILITY...ALLOWING
   CONVECTIVE THREAT TO PERSIST THROUGH THE AFTERNOON BEFORE TROUGH
   MOVES EAST OF THE REGION DURING THE LATTER HALF OF THE PERIOD.
   
   ..GOSS.. 12/08/2003
   
   ...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 1300Z