Atlanta, Georgia Revisions
MILEPOST 1551
Atlanta's forecast for Friday has moved 7°F warmer
54°F in the 20261029T18:00Z run, 60°F in the 20261031T12:00Z — the 3rd-largest revision of the 6 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 12°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, November 6 at 12Z in Atlanta, that trail runs from 53.5°F in the 20261029T18:00Z cycle to 60.4°F in the 20261031T12:00Z — a move of +6.8°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 Friday at 12Z api.weather.city /v1/history (nbm-qmd) |
6.8 °F | normal 0.0 °F · 3 of 6 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
12.1 °F | normal 6.8 °F current run |
- Milepost
- 1551 · laid 2026-10-31T22:25:23Z
- Model
- nbm-qmd · cycle 20261031T12:00Z
- 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
- f77ef508f4813895dfb2385602bdd083986475ac63a15cf055a8f4d387cf7018
- Machine
- JSON