ZCZC SPCSWOMCD ALL ACUS11 KWNS 310409 SPC MCD 310409 MOZ000-KSZ000-NEZ000-310545- Mesoscale Discussion 1401 NWS Storm Prediction Center Norman OK 1109 PM CDT Fri Jul 30 2021 Areas affected...Southeast Nebraska...Northern Missouri Concerning...Severe Thunderstorm Watch 405... Valid 310409Z - 310545Z The severe weather threat for Severe Thunderstorm Watch 405 continues. SUMMARY...Isolated hail/wind threat will continue to sag south across ww405. DISCUSSION...Loosely organized squall line has formed along the IA/MO border. Low-level warm advection appears to be aiding this activity as it propagates south-southeast at roughly 25kt. Ample buoyancy and a focused, but veered, LLJ suggest this activity will continue for several more hours. Primary threats remain gusty winds and marginally severe hail. ..Darrow.. 07/31/2021 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...EAX...OAX...TOP... LAT...LON 40439593 40439356 39669358 39679557 40439593 NNNN