Dallas, Texas Revisions
MILEPOST 1145
Dallas's forecast for Saturday has moved 6°F warmer
86°F in the 20260917T18:00Z run, 93°F in the 20260919T12:00Z — the 2nd-largest revision of the 3 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 14°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, September 26 at 18Z in Dallas, that trail runs from 86.1°F in the 20260917T18:00Z cycle to 92.5°F in the 20260919T12:00Z — a move of +6.4°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 Saturday at 18Z api.weather.city /v1/history (nbm-qmd) |
6.4 °F | normal 0.0 °F · 2 of 3 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
14.2 °F | normal 6.4 °F current run |
- Milepost
- 1145 · laid 2026-09-19T22:25:21Z
- Model
- nbm-qmd · cycle 20260919T12:00Z
- 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
- c5f2b0b57a34c0beba08964002087c185b2925ecf1efd6904aa0ab266707638f
- Machine
- JSON