Dallas, Texas Revisions
MILEPOST 1197
Dallas's forecast for Friday has moved 12°F colder
92°F in the 20260922T12:00Z run, 80°F in the 20260924T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 19°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, October 2 at 18Z in Dallas, that trail runs from 91.7°F in the 20260922T12:00Z cycle to 79.8°F in the 20260924T06:00Z — a move of -11.9°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 Friday at 18Z api.weather.city /v1/history (nbm-qmd) |
-11.9 °F | normal 0.0 °F · 1 of 6 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
19.2 °F | normal 11.9 °F current run |
- Milepost
- 1197 · laid 2026-09-24T17:26:38Z
- Model
- nbm-qmd · cycle 20260924T06:00Z
- 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
- af1460fdec7a23682c63f81e8612ac138ffc612b0e4f341c7fb5909dea28576b
- Machine
- JSON