Mesoscale Discussion 1807 NWS Storm Prediction Center Norman OK 0647 PM CDT Thu Jul 30 2026 Areas affected...portions of central and north-central South Dakota Concerning...Severe Thunderstorm Watch 534... Valid 302347Z - 310145Z The severe weather threat for Severe Thunderstorm Watch 534 continues. SUMMARY...The potential for sporadic severe wind gusts and isolated large hail continues across portions of Severe Thunderstorm Watch 534. This corridor of greater buoyancy will continue to support a risk for sporadic severe wind gusts and an instance or two of large hail over the next couple of hours as ongoing convection progresses east/southeastward. The overall severe risk should then gradually subside into the overnight hours as convection encounters a less unstable air mass.