Mesoscale Discussion 1057
   NWS Storm Prediction Center Norman OK
   1258 PM CDT Tue Jun 30 2020

   Areas affected...Central North Dakota

   Concerning...Severe potential...Watch unlikely 

   Valid 301758Z - 301900Z

   Probability of Watch Issuance...5 percent

   SUMMARY...Large hail and perhaps a damaging gust possible with a
   supercell near Harvey moving north. This isolated activity may
   continue this afternoon. No WW currently expected.

   DISCUSSION...A supercell has recently developed along the southern
   flank of generally decaying convection in central North Dakota. The
   storm has intensified and deepened fairly rapidly and has scoured
   out low-level clouds in its vicinity. KBIS VAD data suggests a
   strongly veering wind profile through about 8 km with large 0-3 km
   SRH. Surface observations would indicate this activity is at least
   somewhat elevated, being behind outflow from storm to the north.
   However, the airmass is showing signs of steady improvement which is
   expected to continue this afternoon. Large hail will likely be the
   primary threat from this activity with less potential for damaging
   gusts. Activity is expected to remain quite isolated. No WW is
   expected.

   ..Wendt/Hart.. 06/30/2020

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

   ATTN...WFO...FGF...BIS...

   LAT...LON   48979917 48529894 47669891 47159906 46949948 46979981
               47300012 47910021 48730027 48980018 49109942 48979917