Mesoscale Discussion 1176
   NWS Storm Prediction Center Norman OK
   0343 PM CDT Fri Jul 10 2020

   Areas affected...eastern Montana...western North Dakota...western
   South Dakota...northeastern Wyoming

   Concerning...Severe Thunderstorm Watch 352...

   Valid 102043Z - 102245Z

   The severe weather threat for Severe Thunderstorm Watch 352
   continues.

   SUMMARY...The severe threat continues across WW 352.

   DISCUSSION...Isolated to scattered thunderstorms have intensified
   along western portions of WW 352.  Radar/satellite and environmental
   indications are that the storms are capable of severe wind gusts and
   large hail - potentially significant near right-moving cells in
   southeastern MT/northeastern WY.  Over time, these storms are
   expected to grow upscale while moving eastward/southeastward across
   WW 352.

   An additional area of concern exists in portions of northeastern WY
   where a cumulus field has emerged.  The cumulus field is very near a
   dryline and co-located with strong surface convergence.  Given the
   subtle influence of an upstream mid-level shortwave trough, it is
   possible that areas of convection evolve from this cumulus field and
   pose a severe risk in areas southwest of the current spatial extent
   of WW 352 (Custer, Fall River, and Oglala Lakota counties).  If this
   threat materializes, spatial extensions of WW 352 will be needed to
   include these areas.

   ..Cook.. 07/10/2020

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

   ATTN...WFO...FSD...ABR...BIS...LBF...UNR...CYS...BYZ...GGW...

   LAT...LON   49300483 49020596 48110572 47160519 46550483 45800506
               45080521 44320512 43480480 42830427 42650323 42720114
               42849954 44339937 46879998 48580114 49250230 49450357
               49460441 49300483