Mesoscale Discussion 1526
   NWS Storm Prediction Center Norman OK
   0637 PM CDT Tue Aug 18 2020

   Areas affected...Western Arizona into the Colorado River Valley in
   parts of southeast California and extreme southern Nevada

   Concerning...Severe potential...Watch unlikely 

   Valid 182337Z - 190130Z

   Probability of Watch Issuance...20 percent

   SUMMARY...A cluster of storms will pose a severe-wind threat as it
   moves southwestward toward the Colorado River Valley.

   DISCUSSION...Numerous storms have developed over the higher terrain
   northwest of Prescott. These storms have already started to congeal
   into a cluster within the past 30 minutes. These storms should
   maintain themselves as they move toward a very hot airmass with
   temperatures around 115F yielding MLCAPE around 500 to 1000 J/kg. As
   these storms congeal and move off the higher terrain toward the
   Colorado River Valley, evaporative cooling is expected to support
   strong outflow winds with the potential for some severe wind gusts
   and likely blowing dust. The severe winds are most likely along the
   Colorado River Valley from Laughlin, NV to Parker, AZ. While a few
   severe wind gusts are possible, no watch is anticipated given the
   relatively small area which will be affected.

   ..Bentley/Edwards.. 08/18/2020

   ...Please see www.spc.noaa.gov for graphic product...

   ATTN...WFO...FGZ...PSR...VEF...

   LAT...LON   34191367 34031432 34181500 34871529 35251497 35471419
               35041321 34771298 34301335 34191367