Dallas's forecast for Sunday has moved 10°F colder
62°F in the 20261111T06:00Z run, 52°F in the 20261113T00:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 8°F.
RevisionsFriday, November 13, 2026Dallas, Texas
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Milepost 1680
Successive cycles do not merely refresh a forecast; they leave a trail. For Sunday, November 15 at 21Z in Dallas, that trail runs from 61.5°F in the 20261111T06:00Z cycle to 51.9°F in the 20261113T00:00Z — a move of -9.7°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 Sunday at 21Z api.weather.city /v1/history (nbm-qmd) |
-9.7 °F | normal 0.0 °F · 1 of 7 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
8.1 °F | normal 9.7 °F current run |
- Milepost
- 1680 · laid 2026-11-13T10:25:31Z
- Model
- nbm-qmd · cycle 20261113T00:00Z
- 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
- 95d8b577656a1e350e2b8e1c54d937e5f56b47f7499c90571772707c111011ac