Mesoscale Discussion 0517
   NWS Storm Prediction Center Norman OK
   0107 AM CDT Tue May 04 2021

   Areas affected...South-central Oklahoma and extreme north Texas

   Concerning...Severe Thunderstorm Watch 139...

   Valid 040607Z - 040730Z

   The severe weather threat for Severe Thunderstorm Watch 139
   continues.

   SUMMARY...The risk for significant hail and strong wind gusts is
   likely across southern Oklahoma over the next couple of hours.

   DISCUSSION...As of 0550 UTC, three supercells were ongoing across
   south-central Oklahoma in WW139. Radar signatures and recent reports
   confirm these storms are capable of producing significant (2+ in
   diameter) hail and severe wind gusts. A corridor of enhanced severe
   potential is likely developing from the I-35 Corridor eastward into
   southeastern Oklahoma. MUCAPE around 2000 J/kg and effective shear
   of 50-60 kts will continue to support significant severe potential
   for at least the next couple of hours before storms begin to
   encounter more stable air behind the ongoing MCS across western
   Arkansas.

   ..Lyons/Guyer.. 05/04/2021

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

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

   LAT...LON   34019809 34379815 34749779 34779711 34709629 34579568
               34329545 33889560 33799594 33759652 33769705 33879772
               34019809