Nashville, Tennessee Revisions
MILEPOST 1108
Nashville's forecast for Monday has moved 9°F warmer
87°F in the 20260914T12:00Z run, 96°F in the 20260916T06:00Z — the 3rd-largest revision of the 7 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 11°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, September 21 at 21Z in Nashville, that trail runs from 87.2°F in the 20260914T12:00Z cycle to 96.0°F in the 20260916T06:00Z — a move of +8.8°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 Monday at 21Z api.weather.city /v1/history (nbm-qmd) |
8.8 °F | normal 0.0 °F · 3 of 7 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
11.1 °F | normal 8.8 °F current run |
- Milepost
- 1108 · laid 2026-09-16T16:25:15Z
- Model
- nbm-qmd · cycle 20260916T06:00Z
- 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
- c20525e8fd18e5375e8a10db77f9cb21b617f1342efaafeda911a914d22e6541
- Machine
- JSON