Atlanta, Georgia Revisions
MILEPOST 1317
Atlanta's forecast for Saturday has moved 10°F colder
74°F in the 20261005T12:00Z run, 64°F in the 20261007T06:00Z — the 3rd-largest revision of the 10 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 13°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 10 at 18Z in Atlanta, that trail runs from 74.4°F in the 20261005T12:00Z cycle to 64.5°F in the 20261007T06:00Z — a move of -9.9°F across 8 runs.
The change is about half the run's 10th-to-90th percentile spread, so the earlier forecast is still inside the current range of outcomes.
Model NBM-QMD, via api.weather.city /v1/history. Percentiles are the same run's own.
The numbers in this piece, with what they are measured against
| forecast revision for Saturday at 18Z api.weather.city /v1/history (nbm-qmd) |
-9.9 °F | normal 0.0 °F · 3 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
13 °F | normal 9.9 °F current run |
- Milepost
- 1317 · laid 2026-10-07T16:25:12Z
- Model
- nbm-qmd · cycle 20261007T06:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Source
- https://api.weather.city/v1/history
- Digest
- cec8f7f0863bab608979adb08c8ad0ef60f931486eff6fc0a8b35e6b7f799db7
- Machine
- JSON