Dallas, Texas Revisions
MILEPOST 1178
Dallas's forecast for Thursday has moved 9°F warmer
82°F in the 20260920T12:00Z run, 91°F in the 20260922T06:00Z — the 2nd-largest revision of the 4 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 20°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Thursday, October 1 at 18Z in Dallas, that trail runs from 81.7°F in the 20260920T12:00Z cycle to 90.9°F in the 20260922T06:00Z — a move of +9.2°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 Thursday at 18Z api.weather.city /v1/history (nbm-qmd) |
9.2 °F | normal 0.0 °F · 2 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
20.4 °F | normal 9.2 °F current run |
- Milepost
- 1178 · laid 2026-09-22T17:25:12Z
- Model
- nbm-qmd · cycle 20260922T06:00Z
- 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
- a142f124a01bd5dbf93562a6bf34acd4ec4a7fe43ecdb82db8c666bf7841d3b4
- Machine
- JSON