Denver, Colorado Revisions
MILEPOST 1400
Denver's forecast for Saturday has moved 10°F colder
66°F in the 20261014T12:00Z run, 56°F in the 20261016T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 21°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 24 at 18Z in Denver, that trail runs from 65.6°F in the 20261014T12:00Z cycle to 55.5°F in the 20261016T06:00Z — a move of -10.1°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 Saturday at 18Z api.weather.city /v1/history (nbm-qmd) |
-10.1 °F | normal 0.0 °F · 1 of 3 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
21.2 °F | normal 10.1 °F current run |
- Milepost
- 1400 · laid 2026-10-16T16:25:19Z
- Model
- nbm-qmd · cycle 20261016T06:00Z
- 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
- dd05cc9999742ce8449f31fbc269b3d41f9b5e801f6f2dea7fcfe8f4038db1ae
- Machine
- JSON