SPC AC 110730 Day 3 Convective Outlook NWS Storm Prediction Center Norman OK 0230 AM CDT Tue Aug 11 2026 Valid 131200Z - 141200Z ...THERE IS A MARGINAL RISK OF SEVERE THUNDERSTORMS FROM THE CENTRAL HIGH PLAINS INTO THE OHIO VALLEY... ...SUMMARY... Isolated severe storms are possible on Thursday from the central High Plains into the Ohio Valley. Otherwise, moderate to strong destabilization will again be possible from parts of the Midwest into the central Plains, in the vicinity of a frontal zone. Isolated storm development cannot be ruled out near the front through early evening, with somewhat greater coverage possible across parts of the central High Plains and adjacent higher terrain. Deep-layer shear will generally be somewhat weaker than previous days, but still sufficient for some storm organization where deep convection can be sustained. ..Dean.. 08/11/2026 CLICK TO GET WUUS03 PTSDY3 PRODUCT NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 1930Z