SPC AC 180026
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0626 PM CST TUE FEB 17 2004
   
   VALID 180100Z - 181200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 WSW UKI 25 NNW RBL
   40 NW SVE 25 SSE SVE TVL MER 45 WNW PRB.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...NRN AND CENTRAL CA...
   
   LEAD SHORTWAVE TROUGH HAS EJECTED NEWD INTO WA...MOSTLY ENDING THE
   LIGHTNING THREAT ALONG THE WA/OR COAST. HOWEVER...THERE IS
   SUFFICIENT INSTABILITY AND LIFT FOR THUNDERSTORMS TO CONTINUE
   THROUGH THE EVENING ACROSS PORTIONS OF NRN AND CENTRAL CA. MAIN
   CONVECTIVE THREAT IS EXPECTED ACROSS CENTRAL CA WHERE 90-100 KT JET
   MAX IS MAINTAINING REGION OF ASCENT ALONG WARM CONVEYOR BELT.
   ALTHOUGH WIDESPREAD PRECIPITATION AND CLOUDS HAVE LIMITED THE
   INSTABILITY...STRONG GRADIENT WINDS COMBINED WITH WEAK CONVECTIVE
   DOWNDRAFTS MIGHT BE ENOUGH FOR ONE OR TWO WIND GUSTS TO BRIEFLY
   EXCEED 50 KT. GIVEN THE REMOTE THREAT AND THE BACK EDGE OF STRONGER
   CONVECTION NOW MOVING ONSHORE SUGGESTS THE CONVECTIVE INTENSITY 
   SHOULD WEAKEN DRAMATICALLY DURING THE NEXT 1 TO 3 HOURS.
   
   ..IMY.. 02/18/2004
   
   ...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 0600Z