Denver, Colorado Revisions
MILEPOST 1547
Denver's forecast for Tuesday has moved 8°F colder
45°F in the 20261030T00:00Z run, 37°F in the 20261031T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 18°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, November 10 at 12Z in Denver, that trail runs from 45.2°F in the 20261030T00:00Z cycle to 36.9°F in the 20261031T06:00Z — a move of -8.2°F across 8 runs.
The change sits well inside the run's own spread, which is the guidance converging rather than reversing.
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 12Z api.weather.city /v1/history (nbm-qmd) |
-8.2 °F | normal 0.0 °F · 1 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
17.8 °F | normal 8.2 °F current run |
- Milepost
- 1547 · laid 2026-10-31T16:25:23Z
- Model
- nbm-qmd · cycle 20261031T06:00Z
- 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
- e2d77b2b0fab7f621836a984e920ac1e936a4564c4a2de9335a880034ff23cb3
- Machine
- JSON