Dallas's forecast for Sunday has moved 14°F colder
70°F in the 20261110T00:00Z run, 56°F in the 20261111T18:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 16°F.
RevisionsThursday, November 12, 2026Dallas, Texas
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Milepost 1666
Successive cycles do not merely refresh a forecast; they leave a trail. For Sunday, November 15 at 21Z in Dallas, that trail runs from 69.6°F in the 20261110T00:00Z cycle to 55.9°F in the 20261111T18:00Z — a move of -13.7°F across 8 runs.
The change is about half the run's 10th-to-90th percentile spread, so the earlier forecast is still inside the current range of outcomes.
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 Sunday at 21Z api.weather.city /v1/history (nbm-qmd) |
-13.7 °F | normal 0.0 °F · 1 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
16.3 °F | normal 13.7 °F current run |
- Milepost
- 1666 · laid 2026-11-12T04:25:29Z
- Model
- nbm-qmd · cycle 20261111T18:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Stores
- https://api.weather.city/v1/history
- Tagged
- I-500 Daily Weather · Dallas, Texas (32.777, -96.797) · by rule, at build
- Digest
- 6d1318ce150fb2e9d49e51b1560e589f322b20cdcbd215ad26b741faaf48ff9a