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Nov 22, 2009 1300 UTC Day 1 Convective Outlook
Updated: Sun Nov 22 12:36:17 UTC 2009  (Print Version)
Probabilistic to Categorical Outlook Conversion Table (Effective Feb 14, 2006).
  | | |  
SPC Day1 1300Z Outlook Categorical SPC Day1 1300Z Outlook Categorical Legend
 Forecast Discussion
   SPC AC 221233
   
   DAY 1 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0633 AM CST SUN NOV 22 2009
   
   VALID 221300Z - 231200Z
   
   ...NO SVR TSTM AREAS FORECAST...
   
   ...SERN STATES...
   UPPER LOW/TROUGH GULF STATES WILL CONTINUE TO SLOWLY WEAKEN AND LIFT
   ENEWD INTO THE CAROLINAS BY TONIGHT.  EVEN SO...GIVEN SUFFICIENT
   INSTABILITY THERE IS ADEQUATE UPPER SUPPORT/SHEAR FOR A LOW END
   THREAT OF SEVERE STORMS.  THE PRIMARY QUESTION IS THE AMOUNT OF
   DESTABILIZATION THAT CAN OCCUR AS A DIFFUSE E/W WARM FRONT DEVELOPS
   NWD ACROSS NRN FL TO ENEWD OFF THE SERN COAST.  ATTM GIVEN THE
   CLOUDINESS SPREADING ACROSS MUCH OF FL PENINSULA IT WILL BE
   DIFFICULT FOR THE WARM SECTOR TO HEAT SUFFICIENTLY TO DEVELOP MUCH
   MORE MLCAPE THAN ABOUT 500 J/KG.  
   
   NEVERTHELESS WILL MAINTAIN A LOW PROB OF SEVERE VICINITY THE FRONTAL
   ZONE WHERE SOME ENHANCED SHEAR WILL FAVOR ROTATING UPDRAFTS AND A
   SMALL CHANCE OF A BRIEF TORNADO AND/OR GUSTY WINDS.  ANY THREAT
   SHOULD END BY 00Z WHEN SHEAR WEAKENS AND ANY HEATING CEASES.
   
   ..HALES/JEWELL.. 11/22/2009
   
   CLICK TO GET WUUS01 PTSDY1 PRODUCT

   NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 1630Z

        
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Page last modified: November 22, 2009
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