Sep-26-2004 0100 UTC Day 1 Convective Outlook
Updated: Sun Sep 26 00:53:47 UTC 2004
Categorical Graphic
20040926 0100 UTC Day 1 Outlook Graphic
Probablistic Tornado Graphic
20040926 0100 UTC Day 1 Tornado Probabilities Graphic
Probablistic Damaging Wind Graphic
20040926 0100 UTC Day 1 Damaging Wind Probabilities Graphic
Probablistic Large Hail Graphic
20040926 0100 UTC Day 1 Large Hail Probabilities Graphic
   SPC AC 260046
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0746 PM CDT SAT SEP 25 2004
   
   VALID 260100Z - 261200Z
   
   THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 10 SSE
   MIA 35 E SRQ GNV 30 W JAX 10 NNE SSI.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 SSW FHU 50 E PHX
   65 SSW 4BL 25 ESE GJT 30 SSE LAR 35 SW SNY 10 NNE LIC 10 SSW RTN 45
   SW AMA 55 W ABI 20 ESE SJT 35 ENE JCT 30 WSW TPL 45 ENE CLL 10 ENE
   GLS.
   
   GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 30 WNW CTY 15 SSW AYS
   25 S SAV.
   
   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS MOST OF THE ERN 2/3 OF
   FL AND SERN GA...
   
   ...SYNOPSIS...
   BELT OF STRONGER / PRIMARILY ZONAL FLOW WILL PERSIST ACROSS SRN
   CANADA AND THE NRN TIER OF THE U.S. THIS PERIOD.  OTHER THAN A WEAK
   UPPER LOW OVER SERN AZ / SWRN NM / NRN MEXICO...FLOW WILL REMAIN
   GENERALLY WEAK / NONDESCRIPT ACROSS THE REMAINDER OF THE CONUS.
   
   MOST SIGNIFICANT WEATHER FEATURE WILL REMAIN HURRICANE
   JEANNE...WHICH CONTINUES TO APPROACH THE SERN FL COAST.  THIS STORM
   IS FORECAST TO TURN MORE NWWD WITH TIME...AND SHOULD BE CENTERED
   OVER CENTRAL FL BY THE END OF THE PERIOD.  FOR ADDITIONAL
   INFORMATION CONCERNING HURRICANE JEANNE...PLEASE REFER TO THE LATEST
   PRODUCTS FROM THE NATIONAL HURRICANE CENTER.
   
   ...FL / FAR SERN GA...
   LITTLE LIGHTNING HAS BEEN OBSERVED WITHIN THE MAIN CIRCULATION OF
   JEANNE OVER THE PAST 6 TO 12 HOURS...AND AREA WSR-88D REFLECTIVITY
   DATA CONFIRMS THAT OUTER BAND CONVECTION REMAINS FAIRLY WEAK.  WITH
   EVENING RAOBS INDICATING VERY LITTLE INSTABILITY AND WEAK LOW-LEVEL
   LAPSE RATES...EXPECT TORNADO THREAT TO REMAIN FAIRLY LOW. 
   NONETHELESS...WILL MAINTAIN 5% TORNADO PROBABILITY ACROSS MUCH OF
   CENTRAL AND ERN FL -- MAINLY N OF THE CENTER...AS A COUPLE OF BRIEF
   SPIN-UPS WITH MORE VIGOROUS CONVECTIVE CELLS CANNOT BE RULED OUT.
   
   ..GOSS.. 09/26/2004
   
   ...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