**Official Storm Prediction Center outlooks for September 28, 2026, showed no organized severe thunderstorm or tornado risk areas across the contiguous United States.** Day 1 convective outlooks issued that day indicated only scattered, non-severe thunderstorms driven by diurnal heating, weak convergence, and modest instability in regions such as the northern Plains, central Rockies, and parts of Texas and Oklahoma, with insufficient vertical shear and lapse rates to support supercells or tornadoes. Remnants of Hurricane Polo contributed anomalous mid-level moisture but arrived too late to enhance tornadic potential on the 28th itself. Any localized rotation remained brief and weak, consistent with September climatology where activity typically declines outside tropical influences. Traders monitoring SPC updates, NWS local storm reports, and model consensus would have seen probabilities stay near zero for measurable tornado risk in specific cities, with any shift tied to verification data or revised Day 2 guidance highlighting the southern High Plains for the following period.