Mesoscale Discussion 1469
   NWS Storm Prediction Center Norman OK
   1003 PM CDT Tue Aug 11 2020

   Areas affected...southwestern North Dakota/northwestern South Dakota

   Concerning...Severe Thunderstorm Watch 432...

   Valid 120303Z - 120500Z

   The severe weather threat for Severe Thunderstorm Watch 432
   continues.

   SUMMARY...Risk for damaging winds continues in/near WW 432.

   DISCUSSION...latest radar loop shows a semi-continuous band of
   storms moving east-southeastward across southwestern North Dakota
   and adjacent northwestern South Dakota at around 30 kt.  With
   low-level southeasterly flow veering to west-northwesterly aloft,
   and favorable downstream instability in place, expect storms to
   continue crossing the WW -- accompanied by risk for strong/locally
   damaging wind gusts.  Greatest short-term risk exists across Perkins
   County South Dakota, where the most intense/vigorous band of storms
   is occurring.  With an axis of 3000 J/kg mixed-layer CAPE just to
   the southeast, extending southeastward across South Dakota, expect
   this band of storms to remain organized/forward-propagating.

   ..Goss.. 08/12/2020

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

   ATTN...WFO...ABR...BIS...UNR...BYZ...

   LAT...LON   45860390 45990316 46460250 47180216 46750079 45320020
               44540134 45300448 45860390