Official precipitation measurements from stations such as Atlanta's Hartsfield-Jackson (CLIATL) and similar sites in Milwaukee and Seattle confirmed measurable rainfall exceeding zero inches on October 9, 2026, driving market resolution toward Yes outcomes. High pressure dominated much of the eastern and central U.S., limiting widespread activity to isolated showers or trace amounts in some regions, while model guidance from NOAA and NWS highlighted steering patterns keeping heavier systems offshore. Historical October baselines show variable convective patterns in the Southeast and Midwest, with verification relying on precise daily totals rather than forecasts. No major data revisions are expected, as preliminary observations align with final agency reports.