Minneapolis, Minnesota Revisions
MILEPOST 1127
Minneapolis's forecast for Wednesday has moved 12°F colder
71°F in the 20260916T00:00Z run, 59°F in the 20260917T18:00Z — 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 8°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Wednesday, September 23 at 00Z in Minneapolis, that trail runs from 71.1°F in the 20260916T00:00Z cycle to 58.7°F in the 20260917T18:00Z — a move of -12.4°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 Wednesday at 00Z api.weather.city /v1/history (nbm-qmd) |
-12.4 °F | normal 0.0 °F · 2 of 10 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
8 °F | normal 12.4 °F current run |
- Milepost
- 1127 · laid 2026-09-18T04:25:21Z
- Model
- nbm-qmd · cycle 20260917T18:00Z
- 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
- 84d55699515e1c9501651e48ea8c6f99e7e383fe9c225cccb660168ef62d02b8
- Machine
- JSON