Atlanta's forecast for Tuesday has moved 10°F colder
67°F in the 20261108T06:00Z run, 57°F in the 20261110T00:00Z — the 2nd-largest revision of the 8 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 18°F.
RevisionsTuesday, November 10, 2026Atlanta, Georgia
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Milepost 1648
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, November 17 at 18Z in Atlanta, that trail runs from 66.8°F in the 20261108T06:00Z cycle to 56.6°F in the 20261110T00:00Z — a move of -10.3°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 Tuesday at 18Z api.weather.city /v1/history (nbm-qmd) |
-10.3 °F | normal 0.0 °F · 2 of 8 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
17.8 °F | normal 10.3 °F current run |
- Milepost
- 1648 · laid 2026-11-10T10:25:27Z
- Model
- nbm-qmd · cycle 20261110T00:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Stores
- https://api.weather.city/v1/history
- Tagged
- I-500 Daily Weather · Atlanta, Georgia (33.749, -84.388) · by rule, at build
- Digest
- 8172f4e6cdf46c7ef31f77d861d148a4c20284c4aba3201399f99b368c5470a1