SPC AC 150753
   
   DAY 2 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0153 AM CST SUN FEB 15 2004
   
   VALID 161200Z - 171200Z
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 45 E BLI 45 W YKM 15
   SE SLE 10 SSW OTH.
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SYNOPSIS/FORECAST...
   A MORE AMPLIFIED PATTERN WILL DEVELOP OVER THE LOWER 48 ON MONDAY AS
   HEIGHTS RISE OVER THE WRN STATES DOWNSTREAM FROM ACTIVE JET NOW
   SETTING UP OVER THE CNTRL AND E PACIFIC.  FARTHER E... PHASING
   SHORTWAVE IMPULSES OVER THE ROCKIES WILL CARVE A BROAD TROUGH OVER
   THE LOWER MS VLY.  LIMITED INSTABILITY AND MODEST FORCING WILL KEEP
   THUNDERSTORM POTENTIAL AT A MINIMUM OVER MOST AREAS.
   
   A DEEP SURFACE CYCLONE IS FORECAST TO FORM OVER THE E PACIFIC WELL
   OFF THE ORE CST DURING THE NEXT 24 HRS.  THIS LOW WILL TRACK N ALONG
   THE BC CST ON MONDAY AND WEAKEN.  A SECONDARY CYCLONE FORMING ALONG
   THE SYSTEM'S TRAILING COLD FRONT WILL DEEPEN AND MOVE RAPIDLY NE
   TOWARD VANCOUVER ISLAND LATER MONDAY.  THE LATTER LOW APPEARS TO
   DEVELOP IN RESPONSE TO CONTINUED E/NE MOTION OF STRONG SPEED MAX NOW
   APPARENT IN SATELLITE IMAGERY NEAR 30N/170W.  
   
   STRONG ASCENT AND STRENGTHENING DEEP SHEAR WILL OVERSPREAD WRN WA
   AND NW ORE AS SECONDARY LOW APPROACHES VANCOUVER.  A FEW AREAS OF
   EMBEDDED THUNDER AND HIGH GRADIENT WINDS MAY PRECEDE AND ACCOMPANY
   THE SYSTEM'S COLD FRONT...ESPECIALLY IN THE PUGET SOUND REGION.  BUT
   ABSENCE OF SIGNIFICANT SURFACE-BASED INSTABILITY SHOULD PRECLUDE
   DEVELOPMENT A GENUINE SEVERE CONVECTIVE THREAT.
   
   ..CORFIDI.. 02/15/2004
   
   ...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 2 OUTLOOK IS SCHEDULED FOR 1730Z