Nashville, Tennessee Revisions
MILEPOST 1314
Nashville's forecast for Saturday has moved 9°F colder
83°F in the 20261005T06:00Z run, 74°F in the 20261007T00:00Z — the 3rd-largest revision of the 10 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 20°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 10 at 21Z in Nashville, that trail runs from 83.3°F in the 20261005T06:00Z cycle to 74.3°F in the 20261007T00:00Z — a move of -9.0°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 Saturday at 21Z api.weather.city /v1/history (nbm-qmd) |
-9 °F | normal 0.0 °F · 3 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
20.1 °F | normal 9.0 °F current run |
- Milepost
- 1314 · laid 2026-10-07T10:25:13Z
- Model
- nbm-qmd · cycle 20261007T00:00Z
- 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
- 43be0f63928117306cf668fefffb4fe3369e7f570230498c986a31013c0b7a21
- Machine
- JSON