ZCZC SPCSWOMCD ALL ACUS11 KWNS 261012 SPC MCD 261012 OKZ000-TXZ000-261145- 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 NNNN