Mesoscale Discussion 1134
   NWS Storm Prediction Center Norman OK
   0625 PM CDT Sun Jun 12 2022

   Areas affected...Parts of western SD and far northeastern WY

   Concerning...Tornado Watch 350...

   Valid 122325Z - 130100Z

   The severe weather threat for Tornado Watch 350 continues.

   SUMMARY...The severe risk will continue spreading eastward across
   parts of Tornado Watch 350. Very large hail and damaging gusts are
   the main concerns in the near-term, though the tornado risk could
   gradually increase as well.

   DISCUSSION...KUDX radar data shows an upscale-growing convective
   cluster tracking east-southeastward along a surface frontal boundary
   from northeastern WY into western SD. Along and south of the
   boundary, dewpoints continue to increase into the upper 60s beneath
   steep midlevel lapse rates -- contributing to moderate to strong
   instability. 

   Given that storm motions and deep-layer shear is oriented largely
   parallel to the surface boundary, cold pools may continue to congeal
   amid the favorable buoyancy/minimal CINH. This would primarily favor
   damaging gusts and sporadic large to very large hail in the
   near-term. However, increasing low/midlevel warm advection atop
   strengthening easterly low-level flow will result in an expanding
   low-level hodograph with time, potentially favoring supercellular
   modes and an increasing tornado risk.

   ..Weinman.. 06/12/2022

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

   ATTN...WFO...UNR...

   LAT...LON   43920373 44150431 44330464 44600448 44740400 44840376
               44890328 44810268 44600240 44190235 43790257 43700308
               43920373