Mesoscale Discussion 0771
   NWS Storm Prediction Center Norman OK
   0325 PM CDT Thu May 27 2021

   Areas affected...northern Oklahoma

   Concerning...Tornado Watch 215...

   Valid 272025Z - 272200Z

   The severe weather threat for Tornado Watch 215 continues.

   SUMMARY...Storms will remain capable of producing large to very
   large hail, damaging wind and a couple tornadoes next couple hours
   mainly across the northern half of Oklahoma.

   DISCUSSION...As of mid afternoon storms continue developing across
   northern OK. Most thunderstorm development has become confined to
   the cool side of a couple of outflow boundaries. These storms are
   probably slightly elevated, but will remain capable of producing
   mainly isolated large hail and damaging wind. Farther west
   additional storms are beginning to develop along the cold front
   across northwest OK. These storms will be surface based and will
   likely become rapidly severe and organized as supercells shortly
   after initiation. VWP from Twin Lakes show the mid-level winds have
   strengthened to 50 kt and size of low-level hodographs has increased
   slightly. The best potential for isolated tornadoes will probably be
   with storms that initially develop across western and west central
   OK then move east and interact with the modifying outflow boundary
   before becoming slightly elevated as they move deeper into the
   cooler side of the boundary.

   ..Dial.. 05/27/2021

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

   ATTN...WFO...TSA...OUN...

   LAT...LON   36689827 36659727 36919588 36919495 36579488 35649685
               35519799 35649890 35639960 35939968 36689827