Dallas's forecast for Saturday has moved 8°F warmer
76°F in the 20260928T18:00Z run, 84°F in the 20260930T12:00Z — the 3rd-largest revision of the 5 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 14°F.
RevisionsWednesday, September 30, 2026Dallas, Texas
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Milepost 1254
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 10 at 00Z in Dallas, that trail runs from 76.4°F in the 20260928T18:00Z cycle to 84.5°F in the 20260930T12:00Z — a move of +8.1°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 Saturday at 00Z api.weather.city /v1/history (nbm-qmd) |
8.1 °F | normal 0.0 °F · 3 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
14.4 °F | normal 8.1 °F current run |
- Milepost
- 1254 · laid 2026-09-30T22:25:13Z
- Model
- nbm-qmd · cycle 20260930T12:00Z
- 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
- 9e9b265c957cc04bba88e278b3eaa007d95ec402fe33df32f78670a39da8f0b9