Mesoscale Discussion 0936
   NWS Storm Prediction Center Norman OK
   0607 PM CDT Sat Jun 01 2019

   Areas affected...Far eastern Kansas...Central Missouri...and western
   Illinois

   Concerning...Severe Thunderstorm Watch 307...

   Valid 012307Z - 020030Z

   The severe weather threat for Severe Thunderstorm Watch 307
   continues.

   SUMMARY...The severe weather threat continues across severe
   thunderstorm watch 307 with a primary threat of large hail and
   damaging winds. The greatest severe weather coverage is expected in
   far eastern Missouri and far western Illinois and along the
   Kansas/Missouri border.

   DISCUSSION...Several supercells have developed in northwest flow
   across portions of the Missouri Valley. Up to this point, storms
   have been confined to the greater instability (KS/MO border), and
   closer to the mid-level shortwave (NE MO and western IL). Storms
   have tried to form along the cold front between these two clusters
   but have struggled up to this point. Given we are past daytime
   heating and the strongest forcing is moving away from this area,
   storm coverage may remain quite sparse (as supported by the 21Z
   HRRR). Where strong updrafts have developed, storms have quickly
   taken on supercell structures, which is not surprising given around
   70 knots of flow around 8km that is being sampled from the LSX and
   EAX VWP. Expect these supercells to continue through the evening
   with primarily a large hail threat, and eventual growth upscale and
   increasing damaging wind threat (including the St. Louis metro
   area).

   ..Bentley.. 06/01/2019

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

   ATTN...WFO...ILX...LSX...DVN...SGF...EAX...

   LAT...LON   38369486 38969483 39849229 40329104 40308976 39968919
               39198919 38668944 38179046 37929126 37919227 37849329
               37799481 38369486