Mesoscale Discussion 0745
   NWS Storm Prediction Center Norman OK
   1259 AM CDT Thu May 23 2019

   Areas affected...northeast OK into southwest and central MO

   Concerning...Tornado Watch 214...

   Valid 230559Z - 230730Z

   The severe weather threat for Tornado Watch 214 continues.

   SUMMARY...Tornado and damaging wind threat will continue for several
   more hours across WW 214.

   DISCUSSION...An interesting evolution of a trio of supercells over
   far northeast OK is currently underway late this evening. A tornado
   was recently confirmed by weather spotters with the leading
   supercell in southeast Craig County. The trailing two cells are
   likely at least slightly elevated as MLCIN increases slowly this
   evening, and as they track behind the outflow of the lead cell. VWP
   data from the SGF and INX 88-Ds continue to show impressive vertical
   shear with large, curved low level hodographs resulting in 0-3km SRH
   in excess of 500 m2/s2. This should continue to support organized
   convection as the airmass remains unstable downstream with MLCAPE
   around 1000-2000 J/kg. In the short term, this will continue to
   support a threat for supercell tornadoes roughly along the I-44
   corridor from northeast OK into southwest MO. 

   As boundary-layer inhibition continues to slowly increase into the
   overnight hours, a strong low-level jet oriented roughly parallel to
   storm-motion vector should tend to support some upscale growth
   potential with damaging winds becoming more of a concern overnight
   into early morning.

   ..Leitman.. 05/23/2019

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

   ATTN...WFO...LSX...SGF...TSA...OUN...

   LAT...LON   36869652 36999495 37099461 37249422 37399397 37589377
               37979347 38309318 38489273 38489237 38279202 37939189
               37639192 36939276 36659311 36269390 35949494 35799571
               35769611 35839651 36069664 36549674 36869652