Mesoscale Discussion 0453
   NWS Storm Prediction Center Norman OK
   0355 PM CDT Wed Apr 15 2026

   Areas affected...portions of central and eastern Oklahoma into
   southeastern Kansas and far southwestern Missouri

   Concerning...Tornado Watch 121...

   Valid 152055Z - 152200Z

   The severe weather threat for Tornado Watch 121 continues.

   SUMMARY...A severe wind and hail threat should persist for several
   more hours, and a couple tornadoes remain possible.

   DISCUSSION...Multiple supercell thunderstorms have developed over
   the past couple of hours over portions of northeastern OK into
   southeastern KS, where severe hail has been reported. Additional
   storms have recently matured over northwestern TX and are
   approaching the Red River. All of these storms are traversing the
   warm sector immediately ahead of the dryline, where 2500+ J/kg
   MLCAPE and over 60 kts of effective bulk shear resides. As such,
   supercells should persist from the Red River toward the Ozarks for
   several more hours, accompanied by a severe wind/hail threat.
   Regional VADs show modest speed shear contributing to elongated
   hodographs, but with little low-level curvature, so tornado
   potential appears modest. Still, a couple of tornadoes cannot be
   ruled out if supercells can persist in a discrete fashion. The
   greatest short-term severe threat exists with ongoing storms in
   northeastern OK, where vertical wind shear is locally stronger.

   ..Squitieri.. 04/15/2026

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

   ATTN...WFO...SGF...TSA...ICT...FWD...OUN...

   LAT...LON   34049819 36669677 37769546 37949487 37849443 37329413
               36219451 34249581 33999630 33899707 34049819 

   MOST PROBABLE PEAK TORNADO INTENSITY...85-115 MPH
   MOST PROBABLE PEAK WIND GUST...55-70 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.50-2.50 IN