Denver, Colorado Revisions
MILEPOST 1275
Denver's forecast for Monday has moved 9°F colder
72°F in the 20261001T06:00Z run, 63°F in the 20261002T18:00Z — the 2nd-largest revision of the 7 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 31°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, October 12 at 18Z in Denver, that trail runs from 72.2°F in the 20261001T06:00Z cycle to 62.9°F in the 20261002T18:00Z — a move of -9.3°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 Monday at 18Z api.weather.city /v1/history (nbm-qmd) |
-9.3 °F | normal 0.0 °F · 2 of 7 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
31.4 °F | normal 9.3 °F current run |
- Milepost
- 1275 · laid 2026-10-03T04:25:12Z
- Model
- nbm-qmd · cycle 20261002T18:00Z
- 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
- f50550a0a57bd97c5f5c840c07cc0174db845664898d6f5b0ba80a1850e4c371
- Machine
- JSON