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Nov 25, 2009 0600 UTC Day 1 Convective Outlook
Click to see valid 1Z - 12Z Day 1 Convective Outlook
Updated: Wed Nov 25 05:29:17 UTC 2009  (Print Version)
Probabilistic to Categorical Outlook Conversion Table (Effective Feb 14, 2006).
  | | |  
SPC Day1 1200Z Outlook Categorical SPC Day1 1200Z Outlook Categorical Legend
 Forecast Discussion
   SPC AC 250526
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   1126 PM CST TUE NOV 24 2009
   
   VALID 251200Z - 261200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...FL...
   A RATHER STRONG SOUTHERN STREAM SHORTWAVE TROUGH AND ASSOCIATED MID
   LEVEL JET MAX OVER THE GULF OF MEXICO WILL OVERSPREAD THE FL
   PENINSULA ON WEDNESDAY.  THIS WILL LEAD TO SCATTERED-NUMEROUS
   SHOWERS AND THUNDERSTORMS OVER THE AREA THROUGH LATE
   AFTERNOON...WITH A DECREASING TREND FROM WEST TO EAST BY DARK. 
   MODEL GUIDANCE IS IN GENERAL AGREEMENT THAT LOW LEVEL VERTICAL SHEAR
   WILL BE MARGINAL FOR ORGANIZED/ROTATING STORMS THROUGH THE PERIOD. 
   HOWEVER...IT APPEARS THE MOST LIKELY TIME FOR STRONG STORMS WILL BE
   BEFORE NOON AND MAINLY ON THE EASTERN HALF OF THE PENINSULA.  THE
   00Z NAM AND 4KM WRF SOLUTIONS SUGGEST A RISK OF AN ISOLATED
   SUPERCELL OR TWO CAPABLE OF LOCALLY DAMAGING WINDS OR PERHAPS A
   TORNADO.  BY EARLY AFTERNOON...VEERING LOW LEVEL WINDS WILL LIKELY
   BRING THE RISK OF SEVERE STORMS TO AN END.  THE OVERALL THREAT DOES
   NOT APPEAR TO WARRANT A SLIGHT RISK AT THIS TIME DUE TO WEAK
   THERMODYNAMIC AND LOW LEVEL SHEAR VALUES.
   
   ..HART/GRAMS.. 11/25/2009
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1300Z

        
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