Mesoscale Discussion 0674
   NWS Storm Prediction Center Norman OK
   0620 PM CDT Fri May 22 2020

   Areas affected...North Texas...Southern Oklahoma

   Concerning...Severe Thunderstorm Watch 203...

   Valid 222320Z - 230115Z

   The severe weather threat for Severe Thunderstorm Watch 203
   continues.

   SUMMARY...A tornado threat will continue near the Red River over the
   next couple of hours.

   DISCUSSION...A right-moving supercell is ongoing near the Red River
   which located close to a maximum in instability. A pocket of strong
   instability is analyzed by the RAP near and to the south of the Red
   River with MLCAPE in the 4500 to 5000 J/kg range. The WSR 88D-VWP at
   Frederick shows veering winds with height in the lowest 2 km AGL
   with 0-6 km shear near 45 kt. As low-level winds increase over the
   next couple of hours, the tornado threat will likely increase
   locally. The greatest threat will exist with the right-moving
   supercell as it tracks just to the south of the Red River.

   ..Broyles/Thompson.. 05/22/2020

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

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

   LAT...LON   33819891 33489762 33529708 33889698 34189731 34319780
               34439876 33819891