Dallas, Texas Revisions
MILEPOST 1171
Dallas's forecast for Friday has moved 9°F warmer
72°F in the 20260920T18:00Z run, 81°F in the 20260921T12:00Z — the 2nd-largest revision of the 5 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 18°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, October 2 at 06Z in Dallas, that trail runs from 72.2°F in the 20260920T18:00Z cycle to 80.8°F in the 20260921T12:00Z — a move of +8.6°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 Friday at 06Z api.weather.city /v1/history (nbm-qmd) |
8.6 °F | normal 0.0 °F · 2 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
17.9 °F | normal 8.6 °F current run |
- Milepost
- 1171 · laid 2026-09-21T22:25:13Z
- Model
- nbm-qmd · cycle 20260921T12:00Z
- 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
- 88c9a76025968930918ecc34e0908349ef9be0818a14143ac74523e6e72a2342
- Machine
- JSON