Dallas's forecast for Thursday has moved 8°F colder
88°F in the 20260927T06:00Z run, 79°F in the 20260928T00:00Z — the 2nd-largest revision of the 8 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 20°F.
RevisionsMonday, September 28, 2026Dallas, Texas
JSON
Milepost 1234
Successive cycles do not merely refresh a forecast; they leave a trail. For Thursday, October 8 at 18Z in Dallas, that trail runs from 87.6°F in the 20260927T06:00Z cycle to 79.2°F in the 20260928T00:00Z — a move of -8.4°F across 8 runs.
The change sits well inside the run's own spread, which is the guidance converging rather than reversing.
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 Thursday at 18Z api.weather.city /v1/history (nbm-qmd) |
-8.4 °F | normal 0.0 °F · 2 of 8 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
20.1 °F | normal 8.4 °F current run |
- Milepost
- 1234 · laid 2026-09-28T10:25:13Z
- Model
- nbm-qmd · cycle 20260928T00:00Z
- 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
- a742620c9dd7b3d808fa0e2a2e24821fdd43c3419759c2e938bae3e54a373dc5