SPC AC 021606
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1006 AM CST TUE DEC 02 2003
   
   VALID 021630Z - 031200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 NW GAG 35 ENE DDC
   30 SSE MHK 30 S OJC 25 NE JLN 20 SSW FYV 25 W PGO 15 ENE FSI 50 WNW
   CSM 30 NW GAG.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 65 WNW 4OM 60 W YKM
   30 NNW PDX 20 S AST.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   A COUPLE VIGOROUS SHORT WAVE TROUGHS WILL BE THE PLAYERS IN WHAT
   CONVECTIVE POTENTIAL THERE IS THIS FORECAST PERIOD.  FAST MOVING
   TROUGH NOW CROSSING CENTRAL ROCKIES TRACKS ESEWD ACROSS PLAINS
   TONIGHT WITH THE 2ND SYSTEM MOVING INLAND PAC NW BY END OF FORECAST
   PERIOD.
   
   ...KS/OK...
   RETURN OF MODIFIED GULF AIR MASS ON SLY FLOW SRN PLAINS...INITIALLY
   STRONGLY CAPPED.  BY LATE THIS AFTERNOON...COMBINATION OF STRONG MID
   LEVEL FORCING AND COLD ADVECTION ASSOCIATED WITH CENTRAL ROCKIES
   S/WV TROUGH EXPECTED TO BE SUFFICIENT TO DESTABILIZE AIR MASS TO
   ALLOW AT LEAST ISOLATED THUNDERSTORMS TO DEVELOP BY EARLY THIS
   EVENING WRN OK/TX BORDER AREA NWD INTO SCENTRAL KS.
   
   THUNDER POTENTIAL SHOULD THEN CONTINUE OVERNIGHT EWD ACROSS MUCH OF
   OK AND SRN KS JUST AHEAD OF UPPER TROUGH AXIS.
   
   WITH A MARGINALLY UNSTABLE AIR MASS THREAT OF SEVERE IS VERY LOW. 
   THERE IS POTENTIAL FOR SMALL HAIL IN STRONGER CELLS GIVEN THE COLD
   AIR ALOFT ACCOMPANYING THE S/WV TROUGH.
   
   ...PAC NW...
   AS IN PLAINS...STRONG OVERNIGHT COLD ADVECTION AT MID LEVELS COUPLED
   WITH A MOIST ONSHORE POST-FRONTAL FLOW EXPECTED TO RESULT IN A
   MARGINALLY UNSTABLE AIR MASS.  THE LOW LEVEL POST-FRONTAL WLYS
   SUGGEST POTENTIAL FOR A PUGET SOUND CONVERGENCE ZONE TO SET UP
   TONIGHT...LOCALLY  ENHANCING THUNDERSTORM DEVELOPMENT.
   
   ..HALES.. 12/02/2003
   
   ...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 2000Z