Denver, Colorado Revisions
MILEPOST 1506
Denver's forecast for Tuesday has moved 13°F colder
60°F in the 20261025T12:00Z run, 47°F in the 20261027T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 16°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, November 3 at 18Z in Denver, that trail runs from 60.1°F in the 20261025T12:00Z cycle to 47.0°F in the 20261027T06:00Z — a move of -13.1°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 Tuesday at 18Z api.weather.city /v1/history (nbm-qmd) |
-13.1 °F | normal 0.0 °F · 1 of 8 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
16 °F | normal 13.1 °F current run |
- Milepost
- 1506 · laid 2026-10-27T16:25:25Z
- Model
- nbm-qmd · cycle 20261027T06:00Z
- 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
- 1d16a3d1b3a129de20c9e897e042c371011e020cb160538c449dce32d54e77b8
- Machine
- JSON