Dallas's forecast for Sunday has moved 11°F colder
64°F in the 20261110T12:00Z run, 53°F in the 20261112T06:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 17°F.
RevisionsThursday, November 12, 2026Dallas, Texas
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Milepost 1671
Successive cycles do not merely refresh a forecast; they leave a trail. For Sunday, November 15 at 21Z in Dallas, that trail runs from 64.1°F in the 20261110T12:00Z cycle to 52.9°F in the 20261112T06:00Z — a move of -11.2°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) |
-11.2 °F | normal 0.0 °F · 1 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
16.8 °F | normal 11.2 °F current run |
- Milepost
- 1671 · laid 2026-11-12T16:25:30Z
- Model
- nbm-qmd · cycle 20261112T06:00Z
- 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
- 4b46ea0932c9207afa599ffa3a04b34fcbd6c602a0b46e01b7c9c2d263ddddf7