Official temperature observations from Austin-area stations confirmed a daily high well above 90°F on May 16, driving the market-implied probability of 90°F or higher to 100%. National Weather Service data showed afternoon readings peaking in the mid-90s under clear skies and light winds, consistent with late-spring climatology for central Texas where maximum temperatures routinely surpass this threshold. With the observation window now closed, resolution depends on final verified records rather than forecasts. Only an unprecedented post-event correction to the official maximum could shift the outcome, an event with negligible historical precedent.