Dallas, Texas Revisions
MILEPOST 1387
Dallas's forecast for Tuesday has moved 11°F colder
68°F in the 20261013T00:00Z run, 57°F in the 20261014T18:00Z — the 2nd-largest revision of the 9 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 11°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, October 20 at 12Z in Dallas, that trail runs from 68.5°F in the 20261013T00:00Z cycle to 57.1°F in the 20261014T18:00Z — a move of -11.4°F across 8 runs.
The change is larger than the run's own 10th-to-90th percentile spread — the guidance did not merely narrow, it moved off its previous position.
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 Tuesday at 12Z api.weather.city /v1/history (nbm-qmd) |
-11.4 °F | normal 0.0 °F · 2 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
11.1 °F | normal 11.4 °F current run |
- Milepost
- 1387 · laid 2026-10-15T04:25:16Z
- Model
- nbm-qmd · cycle 20261014T18:00Z
- 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
- 7cddc9bdee3aee16200426ff7e9919ba8c19eee60768bd1d47290b50c2eecc8e
- Machine
- JSON