Nashville's forecast for Thursday has moved 14°F colder
48°F in the 20261108T12:00Z run, 34°F in the 20261110T06:00Z — the 2nd-largest revision of the 8 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 16°F.
RevisionsTuesday, November 10, 2026Nashville, Tennessee
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Milepost 1650
Successive cycles do not merely refresh a forecast; they leave a trail. For Thursday, November 19 at 12Z in Nashville, that trail runs from 47.5°F in the 20261108T12:00Z cycle to 33.7°F in the 20261110T06:00Z — a move of -13.9°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) |
-13.9 °F | normal 0.0 °F · 2 of 8 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
15.5 °F | normal 13.9 °F current run |
- Milepost
- 1650 · laid 2026-11-10T16:25:30Z
- Model
- nbm-qmd · cycle 20261110T06:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Stores
- https://api.weather.city/v1/history
- Tagged
- I-500 Daily Weather · Nashville, Tennessee (36.163, -86.781) · by rule, at build
- Digest
- a22f056ab7143e84d13d6503bf618aa3d57160e2e7a4385a8afe79e9a325af6d