Storm Prediction Center Mesoscale Discussion 582

   Mesoscale Discussion 0582
   NWS Storm Prediction Center Norman OK
   0930 PM CDT Sun Apr 27 2025

   Areas affected...Northern High Plains

   Concerning...Severe Thunderstorm Watch 179...

   Valid 280230Z - 280400Z

   The severe weather threat for Severe Thunderstorm Watch 179
   continues.

   SUMMARY...Severe threat continues with thunderstorms this evening.

   DISCUSSION...Low-level convergence is gradually shifting east this
   evening as the primary surface cyclone is now into northeast CO.
   Even so, the main boundary currently arcs along the western fringe
   of ww179 from Carter County MT-western Pennington County SD. Several
   longer-lived storms with large hail are progressing across southeast
   MT toward northwest SD, while more liner activity appears to be
   evolving along the wind shift over the western Black Hills. Hail
   remains the primary concern with this activity, though the potential
   for gusty winds with line segments is of some concern. Severe threat
   continues.

   ..Darrow.. 04/28/2025

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

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

   LAT...LON   43840400 46580679 46590342 43830079 43840400 

   MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
   MOST PROBABLE PEAK WIND GUST...65-80 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN