Nashville, Tennessee Revisions
MILEPOST 1366
Nashville's forecast for Friday has moved 10°F colder
77°F in the 20261010T18:00Z run, 66°F in the 20261012T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 16°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, October 16 at 18Z in Nashville, that trail runs from 76.6°F in the 20261010T18:00Z cycle to 66.4°F in the 20261012T12:00Z — a move of -10.1°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 18Z api.weather.city /v1/history (nbm-qmd) |
-10.1 °F | normal 0.0 °F · 1 of 11 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
15.7 °F | normal 10.1 °F current run |
- Milepost
- 1366 · laid 2026-10-12T22:25:16Z
- Model
- nbm-qmd · cycle 20261012T12:00Z
- 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
- 5d229580f5e16e08fcdb657c0757e6833317f9553ed6592ce9ed6b309bcc781e
- Machine
- JSON