Nashville, Tennessee Revisions
MILEPOST 1388
Nashville's forecast for Thursday has moved 11°F colder
59°F in the 20261013T00:00Z run, 48°F in the 20261014T18:00Z — the 3rd-largest revision of the 9 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 Thursday, October 22 at 12Z in Nashville, that trail runs from 59.3°F in the 20261013T00:00Z cycle to 48.3°F in the 20261014T18:00Z — a move of -11.1°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 Thursday at 12Z api.weather.city /v1/history (nbm-qmd) |
-11.1 °F | normal 0.0 °F · 3 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
12.2 °F | normal 11.1 °F current run |
- Milepost
- 1388 · laid 2026-10-15T04:25:16Z
- Model
- nbm-qmd · cycle 20261014T18:00Z
- 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
- 321b1fb88a2104ec11b9e1a2cb05e1602a517e10c1c6f9397913debc67016c7a
- Machine
- JSON