Mesoscale Discussion 0523
   NWS Storm Prediction Center Norman OK
   0512 AM CDT Fri Apr 26 2024

   Areas affected...Central into eastern OK

   Concerning...Severe Thunderstorm Watch 137...

   Valid 261012Z - 261145Z

   The severe weather threat for Severe Thunderstorm Watch 137
   continues.

   SUMMARY...The threat for severe gusts and a couple brief tornadoes
   will spread eastward early this morning.

   DISCUSSION...A QLCS has recently intensified from central into
   southern OK, with a possible QLCS tornado recently noted east of
   Norman. The 08Z OUN sounding depicted minimal MLCINH, and similar
   surface conditions are noted farther east into
   east-central/southeast OK, to the west of an outflow reinforced
   boundary across northeast OK. 

   Rather strong low-level shear and SRH were noted on the 08Z OUN
   sounding and pre-storm KTLX VWP, and some threat for embedded
   mesocyclones and QLCS tornadoes (along with isolated severe gusts)
   may spread eastward into the moderately unstable environment
   downstream. A small downstream watch issuance is possible within the
   hour.

   ..Dean/Thompson.. 04/26/2024

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

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

   LAT...LON   35539717 35999683 36119638 36089597 36009587 35809574
               35539567 35309566 35099562 34929564 34759568 34349579
               33889619 33719662 33599702 33599737 33639765 33959753
               34279731 34549718 34789721 35539717