Nashville, Tennessee Revisions
MILEPOST 1263
Nashville's forecast for Sunday has moved 7°F warmer
77°F in the 20260930T06:00Z run, 84°F in the 20261001T12:00Z — the 2nd-largest revision of the 4 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 19°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 76.9°F in the 20260930T06:00Z cycle to 83.8°F in the 20261001T12:00Z — a move of +7.0°F across 8 runs.
The change sits well inside the run's own spread, which is the guidance converging rather than reversing.
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) |
7 °F | normal 0.0 °F · 2 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
18.7 °F | normal 7.0 °F current run |
- Milepost
- 1263 · laid 2026-10-01T22:25:14Z
- Model
- nbm-qmd · cycle 20261001T12:00Z
- 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
- 73e2665ce02a19aacbc261c48685e3de8e04becde8e8a396a40853cb2fb4029a
- Machine
- JSON