SPC AC 251626
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1026 AM CST TUE NOV 25 2003
   
   VALID 251630Z - 261200Z.
   
   ...NO TSTM AREAS FORECAST...
   
   ...SYNOPSIS...
   LOW AMPLITUDE TROUGH ACROSS THE LOWER 48 WILL AMPLIFY SLIGHTLY THIS
   PERIOD AS SPEED MAX NOW ENTERING THE N PACIFIC CST CONTINUES SE
   ACROSS THE GRT BASIN TO THE CNTRL RCKYS.  FARTHER S... A WEAKER SRN
   STREAM JET WILL PERSIST FROM NRN BAJA CA ENE ACROSS THE SRN PLNS. 
   SATELLITE DATA SHOW TWO IMPULSES WITHIN THIS STREAM... BOTH OF WHICH
   APPEAR TO BE QUITE WEAK. IN THE EAST...SATELLITE ALSO DEPICTS A WEAK
   VORT APPROACHING THE SW CST OF FL.  THIS FEATURE SHOULD CONTINUE E
   THROUGH THE PERIOD...ENHANCING UPLIFT/THUNDER ALONG TAIL END OF
   WEAKENING FRONT WELL OF THE ERN FL CST.
   
   ...N PAC CST...
   COOL...UNSTABLE...WEAKLY CYCLONIC ONSHORE FLOW WILL CONTINUE OVER
   WRN WA AND NW ORE THIS PERIOD...ALONG AND N OF JET AXIS AND
   ASSOCIATED WITH SPEED MAX NOW APPROACHING THE CST.  OROGRAPHIC
   ASCENT AND UPLIFT IN LEFT EXIT REGION OF JET MAX WILL BE FAVORABLE
   FOR DIURNALLY ENHANCED CONVECTIVE DEVELOPMENT ALONG THE WA AND NRN
   ORE CASCADES/CSTL RANGES.  SOME OF THIS ACTIVITY MAY YIELD A LITTLE
   THUNDER...BUT COOL TEMPERATURE PROFILES AND WEAK CONVERGENCE SHOULD
   LIMIT COVERAGE/DURATION OF ANY SUCH ACTIVITY.
   
   ...S FL...
   WARM...APPARENTLY SUBSIDENT LAYER BETWEEN 850 AND 500 MB...AND
   CONTINUED EWD MOTION OF WEAK IMPULSE NOW CROSSING THE WRN FL CST...
   SHOULD PRECLUDE THUNDERSTORM DEVELOPMENT ALONG DISSIPATING FRONT
   OVER THE SRN PART OF THE STATE LATER TODAY.
   
   ...SE TX...
   RECENT CHANGES IN STRATOCU FIELD OVER THE WRN GULF AS SEEN IN I.R.
   SATELLITE IMAGERY INDICATE THAT LOW LEVEL WARM ADVECTION IS NOW
   BEGINNING IN EARNEST.  BUT SATELLITE DERIVED PW FIELDS AND SURFACE
   DATA ALSO SHOW THAT LEADING EDGE OF TRUE TROPICAL AIR IS STILL VERY
   FAR TO THE S IN THE BAY OF CAMPECHE.  IN THE MEANTIME...MUCH FASTER
   NEAR-SHORE MODIFICATION OF EXISTING CP AIR MASS THAN IS TYPICALLY
   OBSERVED WOULD HAVE TO OCCUR FOR ETA FORECAST SURFACE DEWPOINT
   FIELDS TO VERIFY OVER SE TX LATER TODAY/TONIGHT.  COUPLED WITH WEAK
   NATURE OF SRN STREAM IMPULSES...ANY THUNDER THREAT OVER SE TX WILL
   BE MINIMAL.
   
   ..CORFIDI.. 11/25/2003
   
   ...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