Mesoscale Discussion 1103
   NWS Storm Prediction Center Norman OK
   0750 PM CDT Sat Jul 04 2020

   Areas affected...eastern MT

   Concerning...Severe Thunderstorm Watch 329...

   Valid 050050Z - 050145Z

   The severe weather threat for Severe Thunderstorm Watch 329
   continues.

   SUMMARY...Severe gusts (60-75 mph) and large hail are possible with
   the stronger storms for the next several hours as they spread
   northeast across eastern MT.

   DISCUSSION...Radar mosaic shows a cluster of thunderstorms over
   north-central and southeast MT early this evening.   The 00z Glasgow
   observed sounding showed very steep 0-3 km lapse rates ahead of the
   north-central MT cluster, and the boundary layer at Glasgow is
   likely representative of the areas over far eastern MT ahead of the
   southeast MT cluster of storms.  Around 1400 J/kg MLCAPE was noted
   on the sounding and 45 kt effective shear---supportive of organized
   storm structures, including supercells and bowing segments.  As this
   activity moves northeastward, large hail will probably accompany the
   stronger cores and severe gusts will likely focus with the more
   outflow-dominant linear modes this evening.

   ..Smith.. 07/05/2020

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

   ATTN...WFO...BYZ...GGW...TFX...

   LAT...LON   48360865 48980730 48260558 46180436 45180481 45150581
               46700613 47390796 48360865