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Day 4-8 Convective Outlook Issued on Aug 25, 2009
Updated: Tue Aug 25 08:30:05 UTC 2009
Day 4-8 Convective Outlook Graphics Issued on Aug 25, 2009
D4Fri, Aug 28, 2009 - Sat, Aug 29, 2009 D7Mon, Aug 31, 2009 - Tue, Sep 01, 2009
D5Sat, Aug 29, 2009 - Sun, Aug 30, 2009 D8Tue, Sep 01, 2009 - Wed, Sep 02, 2009
D6Sun, Aug 30, 2009 - Mon, Aug 31, 2009 (All days are valid from 12 UTC - 12 UTC)

Note: A severe weather area depicted in the Day 4-8 period indicates a 30% or higher probability for severe thunderstorms within 25 miles of any point.

PREDICTABILITY TOO LOW means severe storms are possible. However, no severe weather areas are included as the severe threat is less than 30% due to expected limited coverage or uncertainty on the timing and location of such an event.
POTENTIAL TOO LOW is used when the threat for organized areas of severe storms appears highly unlikely during the entire period.


 Forecast Discussion

   ZCZC SPCSWOD48 ALL
   ACUS48 KWNS 250829
   SPC AC 250829
   
   DAY 4-8 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0329 AM CDT TUE AUG 25 2009
   
   VALID 281200Z - 021200Z
   
   ...DISCUSSION...
   
   LATEST MEDIUM RANGE MODEL GUIDANCE SUGGESTS TROUGHING MAY BECOME
   MORE ESTABLISHED ACROSS THE ERN U.S. BY THIS WEEKEND...LEADING INTO
   EARLY NEXT WEEK.  IF THIS EVOLUTION OCCURS STRONGER FLOW WOULD ONCE
   AGAIN DROP SOUTH ACROSS MUCH OF THE CONUS EAST OF THE ROCKIES
   ENHANCING THE LIKELIHOOD FOR ORGANIZED THUNDERSTORMS.  AT THIS TIME
   THERE IS TOO MUCH UNCERTAINTY REGARDING BUOYANCY AND POTENTIAL
   CONVECTIVE FEEDBACK PRIOR TO STRENGTHENING WIND FIELDS.
   
   ..DARROW.. 08/25/2009

   CLICK TO GET WUUS48 PTSD48 PRODUCT

To retrieve previous Day 4-8 convective outlooks, enter the date YYYYMMDD (e.g., 20050310 for March 10, 2005.)
Data available since March 8, 2005.
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Page last modified: August 25, 2009
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