Mesoscale Discussion 0970 NWS Storm Prediction Center Norman OK 0412 AM CDT Sun May 26 2024 Areas affected...southern Missouri and northern Arkansas Concerning...Tornado Watch 311...314... Valid 260912Z - 261045Z The severe weather threat for Tornado Watch 311, 314 continues. SUMMARY...Severe/tornado risk continues across southern Missouri and northern Arkansas. DISCUSSION...Latest radar loop shows complex clustering of severe/supercell storms, including spin-up of several small low-level circulations -- and associated/brief tornadoes -- in the past half hour over southern Missouri. Meanwhile, the two more substantial/long-lived supercells -- one now moving east-southeastward across Stone County Missouri and the other crossing Marion County Arkansas -- both remain capable of producing all-hazards severe weather. The Marion County storm, in particular, appears to have produced a tornado over the past 15 minutes per WSR-88D correlation coefficient. Severe potential will likely continue/spread eastward over the next few hours. Gradually, storms will vacate eastern portions of Tornado Watch 311, and move fully into Tornado Watch 314. However, storms may not fully clear WW 311 prior to its scheduled 10Z expiration -- possibly requiring an EXT to cover the ongoing risk. ..Goss.. 05/26/2024 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...PAH...MEG...LSX...LZK...SGF...TSA... LAT...LON 35999286 36369401 36589430 37609396 37799303 37849139 37329021 36039066 35999286