Nashville, Tennessee Revisions
MILEPOST 1591
Nashville's forecast for Saturday has moved 12°F colder
66°F in the 20261104T18:00Z run, 54°F in the 20261106T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 22°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, November 14 at 18Z in Nashville, that trail runs from 65.9°F in the 20261104T18:00Z cycle to 53.7°F in the 20261106T12:00Z — a move of -12.2°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) |
-12.2 °F | normal 0.0 °F · 1 of 6 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
21.8 °F | normal 12.2 °F current run |
- Milepost
- 1591 · laid 2026-11-06T22:25:26Z
- Model
- nbm-qmd · cycle 20261106T12:00Z
- 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
- 0d3a259b5bbed1fb1f5a669549d1ba8bcc5b5f9211b9c5417212443e3305620a
- Machine
- JSON