Salt Lake City's forecast for Saturday has moved 12°F colder
59°F in the 20261109T06:00Z run, 47°F in the 20261111T00:00Z — the 3rd-largest revision of the 10 cities on the roster that moved at all. The current run's 10th-to-90th percentile spread at that hour is 10°F.
RevisionsWednesday, November 11, 2026Salt Lake City, Utah
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Milepost 1657
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, November 14 at 21Z in Salt Lake City, that trail runs from 58.9°F in the 20261109T06:00Z cycle to 47.0°F in the 20261111T00:00Z — a move of -11.9°F across 8 runs.
The change is larger than the run's own 10th-to-90th percentile spread — the guidance did not merely narrow, it moved off its previous position.
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 21Z api.weather.city /v1/history (nbm-qmd) |
-11.9 °F | normal 0.0 °F · 3 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
10.1 °F | normal 11.9 °F current run |
- Milepost
- 1657 · laid 2026-11-11T10:25:29Z
- Model
- nbm-qmd · cycle 20261111T00:00Z
- 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 · Salt Lake City, Utah (40.761, -111.891) · by rule, at build
- Digest
- 62b357c40c51cafbd354c60c6149e583464689cd509b8f306f654e48babb952f