Dallas, Texas Revisions
MILEPOST 1215
Dallas's forecast for Monday has moved 15°F colder
91°F in the 20260924T06:00Z run, 76°F in the 20260925T18:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 26°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, October 5 at 18Z in Dallas, that trail runs from 91.1°F in the 20260924T06:00Z cycle to 75.9°F in the 20260925T18:00Z — a move of -15.3°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 18Z api.weather.city /v1/history (nbm-qmd) |
-15.3 °F | normal 0.0 °F · 1 of 7 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
25.6 °F | normal 15.3 °F current run |
- Milepost
- 1215 · laid 2026-09-26T04:25:15Z
- Model
- nbm-qmd · cycle 20260925T18:00Z
- 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
- 4501c22ed037e750fb0fb3d2b0c9bbb55ae2d540a4a42eb4e6ee0a3cc37480f0
- Machine
- JSON