Denver, Colorado Revisions
MILEPOST 1510
Denver's forecast for Monday has moved 14°F colder
63°F in the 20261025T18:00Z run, 49°F in the 20261027T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 14°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, November 2 at 21Z in Denver, that trail runs from 63.0°F in the 20261025T18:00Z cycle to 49.4°F in the 20261027T12:00Z — a move of -13.6°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 Monday at 21Z api.weather.city /v1/history (nbm-qmd) |
-13.6 °F | normal 0.0 °F · 1 of 7 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
13.7 °F | normal 13.6 °F current run |
- Milepost
- 1510 · laid 2026-10-27T22:25:26Z
- Model
- nbm-qmd · cycle 20261027T12:00Z
- 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
- 710335708b9955c195c45bbbf2d57f71bb12910ada04cbef3d7c49dc252b8377
- Machine
- JSON