Nashville, Tennessee Revisions
MILEPOST 1574
Nashville's forecast for Saturday has moved 7°F colder
63°F in the 20261101T18:00Z run, 56°F in the 20261103T12:00Z — the 3rd-largest revision of the 6 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 5°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, November 7 at 21Z in Nashville, that trail runs from 63.1°F in the 20261101T18:00Z cycle to 56.3°F in the 20261103T12:00Z — a move of -6.8°F across 8 runs.
The change is larger than the run's own 10th-to-90th percentile spread — the guidance did not merely narrow, it moved off its previous position.
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 21Z api.weather.city /v1/history (nbm-qmd) |
-6.8 °F | normal 0.0 °F · 3 of 6 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
5.4 °F | normal 6.8 °F current run |
- Milepost
- 1574 · laid 2026-11-03T22:25:23Z
- Model
- nbm-qmd · cycle 20261103T12:00Z
- 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
- 8a868bf89b609a6a4b7854b9525bd066b7d28e39b44a7b5d035b76b50f13e84f
- Machine
- JSON