Storm Prediction Center Mesoscale Discussion 1246

   Mesoscale Discussion 1246
   NWS Storm Prediction Center Norman OK
   1134 PM CDT Sun Jun 21 2026

   Areas affected...northwest into central OK

   Concerning...Severe Thunderstorm Watch 372...

   Valid 220434Z - 220630Z

   The severe weather threat for Severe Thunderstorm Watch 372
   continues.

   SUMMARY...An intense bow echo and rear inflow jet will be capable of
   80-100 mph gusts, potentially as far southeast as the OKC metro.

   DISCUSSION...Radar mosaic shows a mature and intense bow echo and
   associated rear inflow jet over northwest OK late this evening.  The
   airmass ahead of this is very unstable with 3000-4000 J/kg MLCAPE. 
   Ample mid to high-level northwesterly flow and a very moisture-rich
   boundary layer will favor further intensification and maintenance of
   this bow echo southeastward into central OK.  Recent HRRR models
   runs are congruent with this overall convective evolution.  Peak
   gusts of 80-100 mph are forecast with the bow echo.  Mesovortices
   within the line will also focus intense wind swaths and perhaps
   yield a brief tornado or two.

   ..Smith.. 06/22/2026

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

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

   LAT...LON   35509847 36219958 36489909 36919883 36339754 35949724
               35499747 35399789 35509847 

   MOST PROBABLE PEAK TORNADO INTENSITY...UP TO 90 MPH
   MOST PROBABLE PEAK WIND GUST...85-100 MPH
   MOST PROBABLE PEAK HAIL SIZE...1.00-1.75 IN