Mesoscale Discussion 1027
   NWS Storm Prediction Center Norman OK
   0347 PM CDT Sat Jun 08 2019

   Areas affected...Portions of northern Nebraska into eastern South
   Dakota

   Concerning...Severe potential...Watch unlikely 

   Valid 082047Z - 082215Z

   Probability of Watch Issuance...20 percent

   SUMMARY...Scattered storm development is expected to continue across
   the area for the next few hours. Isolated damaging wind gusts and
   large hail may occur with the most organized and sustained storms.
   Given the isolated nature of the severe threat, a WW issuance is not
   currently anticipated.

   DISCUSSION...Scattered storms have been developing along and behind
   the cold front within the past couple of hours given the
   overspreading of deeper-layer ascent aloft with the ejecting of a
   mid-level shortwave trough into the northern Plains. Modest buoyancy
   is in place, with over 1000 J/kg MLCAPE noted. Nonetheless, much of
   the area has experienced quite a bit of cloud cover, hampering
   further destabilization. In addition, vertical wind profiles
   demonstrate weak flow magnitudes, with a veer-back-veer profile
   below 700 mb, suggesting somewhat unfavorable kinematics for a more
   widespread severe threat, especially with much of the convection
   already undercut by the cold front. A few of the more
   organized/longer-lived cells may produce a few severe hail stones
   and damaging wind gusts given the modest lapse rates in place, but
   the severe threat is expected to remain isolated at best, with a WW
   issuance not expected.

   ..Squitieri/Thompson.. 06/08/2019

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

   ATTN...WFO...MPX...FGF...FSD...OAX...ABR...LBF...UNR...

   LAT...LON   42130047 42839987 44259909 45169852 45909780 45929604
               43379656 42089778 42130047