Salt Lake City, Utah Revisions
MILEPOST 1271
Salt Lake City's forecast for Monday has moved 7°F colder
73°F in the 20261001T06:00Z run, 66°F in the 20261002T12:00Z — the 2nd-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 24°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, October 12 at 18Z in Salt Lake City, that trail runs from 72.9°F in the 20261001T06:00Z cycle to 66.3°F in the 20261002T12:00Z — a move of -6.7°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 Monday at 18Z api.weather.city /v1/history (nbm-qmd) |
-6.7 °F | normal 0.0 °F · 2 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
23.5 °F | normal 6.7 °F current run |
- Milepost
- 1271 · laid 2026-10-02T22:25:13Z
- Model
- nbm-qmd · cycle 20261002T12:00Z
- 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
- e9fc64a6a51aa273ede02fd66ef61d50ba9f9f2df7d70c0c1d8e8965a0074070
- Machine
- JSON