Dallas's forecast for Monday has moved 11°F colder
68°F in the 20261109T18:00Z run, 57°F in the 20261111T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 13°F.
RevisionsWednesday, November 11, 2026Dallas, Texas
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Milepost 1661
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, November 16 at 21Z in Dallas, that trail runs from 67.6°F in the 20261109T18:00Z cycle to 56.8°F in the 20261111T12:00Z — a move of -10.8°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 Monday at 21Z api.weather.city /v1/history (nbm-qmd) |
-10.8 °F | normal 0.0 °F · 1 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
12.7 °F | normal 10.8 °F current run |
- Milepost
- 1661 · laid 2026-11-11T22:25:30Z
- Model
- nbm-qmd · cycle 20261111T12:00Z
- 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
- 44f4a526c17a67826fac430e8d275bbba3ce1dde1edb421179f99f87de4f2cb8