Salt Lake City, Utah Revisions
MILEPOST 1439
Salt Lake City's forecast for Wednesday has moved 10°F warmer
50°F in the 20261017T18:00Z run, 60°F in the 20261019T12:00Z — the 2nd-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 18°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Wednesday, October 28 at 00Z in Salt Lake City, that trail runs from 49.9°F in the 20261017T18:00Z cycle to 59.8°F in the 20261019T12:00Z — a move of +10.0°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 Wednesday at 00Z api.weather.city /v1/history (nbm-qmd) |
10 °F | normal 0.0 °F · 2 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
18 °F | normal 10.0 °F current run |
- Milepost
- 1439 · laid 2026-10-19T22:25:19Z
- Model
- nbm-qmd · cycle 20261019T12:00Z
- 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
- bfc39e392cb4c4e016109f48427f5d417a2af350f159a46db3477d2a566f54cf
- Machine
- JSON