Mesoscale Discussion 0960
   NWS Storm Prediction Center Norman OK
   0614 PM CDT Sun Jun 21 2020

   Areas affected...Parts of northern Iowa into southeast
   Minnesota...northwest Wisconsin...western Upper Michigan

   Concerning...Severe Thunderstorm Watch 292...

   Valid 212314Z - 220115Z

   The severe weather threat for Severe Thunderstorm Watch 292
   continues.

   SUMMARY...The severe threat continues across Severe Thunderstorm
   Watch 0292. Damaging winds and occasional large hail remain the
   primary severe threats. The greatest threat for damaging winds in
   the short term appears to be confined to a cluster of storms just
   north of the MN/IA border. The severe threat is expected to persist
   for at least a few more hours.

   DISCUSSION...Scattered convection continues across portions of the
   Upper Mississippi Valley, along/ahead of a cold front. Stronger
   deep-layer shear is lagging behind the cold front, inhibiting storm
   organization to a degree. Despite the relatively mediocre shear
   profile, adequate instability across the Upper Mississippi Valley
   may still encourage occasional robust updraft development.

   A relatively more organized multicellular cluster has managed to
   become sustained just north of the MN/IA border, with a history of
   damaging gust reports across northwest IA over the past couple of
   hours. This cluster is oriented somewhat normal to the 35-40 knot
   effective bulk shear vector, promoting a slightly higher
   concentration of wind-damage potential. The severe threat is
   expected to continue until after sunset (as supported by the last
   few runs of the HRRR). Thereafter, gradual weakening is likely with
   the onset of nocturnal cooling.

   ..Squitieri/Thompson.. 06/21/2020

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

   ATTN...WFO...MQT...GRB...DLH...ARX...MPX...DMX...

   LAT...LON   42599465 43469481 43969466 44579332 45569174 46598980
               46938903 46448876 45468921 44848986 43889166 42649399
               42599465