Salt Lake City, Utah Revisions
MILEPOST 1292
Salt Lake City's forecast for Wednesday has moved 10°F colder
70°F in the 20261003T00:00Z run, 60°F in the 20261004T18:00Z — 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 26°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Wednesday, October 14 at 00Z in Salt Lake City, that trail runs from 69.8°F in the 20261003T00:00Z cycle to 59.9°F in the 20261004T18:00Z — a move of -9.9°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 Wednesday at 00Z api.weather.city /v1/history (nbm-qmd) |
-9.9 °F | normal 0.0 °F · 2 of 9 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
25.8 °F | normal 9.9 °F current run |
- Milepost
- 1292 · laid 2026-10-05T04:25:13Z
- Model
- nbm-qmd · cycle 20261004T18:00Z
- 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
- beeb4c89894f12d53c2f657c37836b250a519a8036a42d8e9a31acfeddb4ae65
- Machine
- JSON