Minneapolis, Minnesota Revisions
MILEPOST 1169
Minneapolis's forecast for Saturday has moved 8°F colder
72°F in the 20260919T12:00Z run, 64°F in the 20260921T06:00Z — the 3rd-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 13°F.
Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, September 26 at 21Z in Minneapolis, that trail runs from 71.8°F in the 20260919T12:00Z cycle to 63.6°F in the 20260921T06:00Z — a move of -8.2°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 Saturday at 21Z api.weather.city /v1/history (nbm-qmd) |
-8.2 °F | normal 0.0 °F · 3 of 5 8 synoptic cycles |
| 10th-to-90th percentile spread at that hour api.weather.city (nbm-qmd) |
12.9 °F | normal 8.2 °F current run |
- Milepost
- 1169 · laid 2026-09-21T16:25:13Z
- Model
- nbm-qmd · cycle 20260921T06:00Z
- 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
- ff8d42d7f88177763d62e43f03d39d3f779773e486a7e474c228afc653db93f5
- Machine
- JSON