Minneapolis, Minnesota Revisions
MILEPOST 1114
Minneapolis's forecast for Tuesday has moved 10°F colder
72°F in the 20260915T06:00Z run, 62°F in the 20260916T18:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 10°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Tuesday, September 22 at 21Z in Minneapolis, that trail runs from 72.2°F in the 20260915T06:00Z cycle to 61.8°F in the 20260916T18:00Z — a move of -10.4°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 Tuesday at 21Z api.weather.city /v1/history (nbm-qmd) |
-10.4 °F | normal 0.0 °F · 1 of 4 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
10.1 °F | normal 10.4 °F current run |
- Milepost
- 1114 · laid 2026-09-17T10:25:25Z
- Model
- nbm-qmd · cycle 20260916T18:00Z
- 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
- 76eab89e6200cdee562723d0fac6b30049ef3dbbb32749b62b458c9e0069c77f
- Machine
- JSON