Nashville, Tennessee Revisions
MILEPOST 1311
Nashville's forecast for Sunday has moved 11°F colder
82°F in the 20261005T00:00Z run, 70°F in the 20261006T18:00Z — the largest revision of any city on the roster. 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 Sunday, October 11 at 18Z in Nashville, that trail runs from 81.7°F in the 20261005T00:00Z cycle to 70.4°F in the 20261006T18:00Z — a move of -11.3°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 Sunday at 18Z api.weather.city /v1/history (nbm-qmd) |
-11.3 °F | normal 0.0 °F · 1 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
12.2 °F | normal 11.3 °F current run |
- Milepost
- 1311 · laid 2026-10-07T04:25:11Z
- Model
- nbm-qmd · cycle 20261006T18:00Z
- 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
- 9b76bb33d1bb69345f2eef76dddb519d8eba1c5f5a85b99d241c68c935cd0738
- Machine
- JSON