Denver, Colorado Revisions
MILEPOST 1354
Denver's forecast for Wednesday has moved 16°F colder
69°F in the 20261009T06:00Z run, 53°F in the 20261011T00:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 17°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Wednesday, October 14 at 21Z in Denver, that trail runs from 69.1°F in the 20261009T06:00Z cycle to 53.4°F in the 20261011T00:00Z — a move of -15.6°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 Wednesday at 21Z api.weather.city /v1/history (nbm-qmd) |
-15.6 °F | normal 0.0 °F · 1 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
17.2 °F | normal 15.6 °F current run |
- Milepost
- 1354 · laid 2026-10-11T10:25:15Z
- Model
- nbm-qmd · cycle 20261011T00:00Z
- 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
- fee6c26e226e1e7ace29908a6b1657d01fe17c2c2fbe746445dbb39c5b4449a9
- Machine
- JSON