Minneapolis, Minnesota Revisions
MILEPOST 1112
Minneapolis's forecast for Monday has moved 14°F colder
75°F in the 20260915T00:00Z run, 61°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 11°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, September 21 at 21Z in Minneapolis, that trail runs from 75.0°F in the 20260915T00:00Z cycle to 61.3°F in the 20260916T18:00Z — a move of -13.7°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 Monday at 21Z api.weather.city /v1/history (nbm-qmd) |
-13.7 °F | normal 0.0 °F · 1 of 6 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
11.2 °F | normal 13.7 °F current run |
- Milepost
- 1112 · laid 2026-09-17T04:25:20Z
- 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
- 5c21edd18b90931cf710d28125a63bab6741751cbc8ac4509657d62742b0fb16
- Machine
- JSON