Dallas, Texas Revisions
MILEPOST 1220
Dallas's forecast for Saturday has moved 13°F colder
92°F in the 20260924T18:00Z run, 79°F in the 20260926T12:00Z — the 2nd-largest revision of the 9 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 21°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 3 at 18Z in Dallas, that trail runs from 91.6°F in the 20260924T18:00Z cycle to 78.5°F in the 20260926T12:00Z — a move of -13.1°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 18Z api.weather.city /v1/history (nbm-qmd) |
-13.1 °F | normal 0.0 °F · 2 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
21.3 °F | normal 13.1 °F current run |
- Milepost
- 1220 · laid 2026-09-26T22:25:13Z
- Model
- nbm-qmd · cycle 20260926T12:00Z
- Desk
- revision v1
- Method
- the same valid time read from successive synoptic cycles; the move is last run minus first run
- Source
- https://api.weather.city/v1/history
- Digest
- 2d377c0bc089cfc4e8b9cc1a0528b38db57f8461c783b7e9c20f06a7f51573b3
- Machine
- JSON