Official temperature observations from the National Weather Service confirm Atlanta reached a daily high of 86-87°F on May 16, driving the near-certain market-implied odds for that range. Mid-May atmospheric conditions featured typical Southeast humidity and moderate southerly flow that prevented significant warming, consistent with NOAA model guidance issued earlier in the week. Seasonal climatology for the region shows average highs near 82°F, with the observed value falling squarely within normal variability rather than any anomalous heat. Clearer skies or a stalled high-pressure system could have elevated readings toward 90°F or higher, but those factors remained absent in real-time data. Final agency verification will now determine contract resolution.