Dallas, Texas Revisions
MILEPOST 1500
Dallas's forecast for Friday has moved 7°F colder
79°F in the 20261024T00:00Z run, 72°F in the 20261025T18:00Z — 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 15°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, October 30 at 21Z in Dallas, that trail runs from 78.9°F in the 20261024T00:00Z cycle to 72.4°F in the 20261025T18:00Z — a move of -6.5°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 21Z api.weather.city /v1/history (nbm-qmd) |
-6.5 °F | normal 0.0 °F · 2 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
15.3 °F | normal 6.5 °F current run |
- Milepost
- 1500 · laid 2026-10-26T04:25:24Z
- Model
- nbm-qmd · cycle 20261025T18:00Z
- 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
- bde284c8c8d0304179e537f140e0e0136e0babbb54bef5ee8952534260fb5670
- Machine
- JSON