Edition 2026-10-07 The Ledger Archive API RSS Weather Trader
Milepost
1317

TheForecast Post

A chronicle of American weather and climate  ·  Wednesday, 7 October 2026

Minneapolis, Minnesota Revisions MILEPOST 1316

Minneapolis's forecast for Saturday has moved 10°F warmer

57°F in the 20261005T12:00Z run, 67°F in the 20261007T06:00Z — 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 9°F.

Successive cycles do not merely refresh a forecast; they leave a trail. For Saturday, October 10 at 09Z in Minneapolis, that trail runs from 57.2°F in the 20261005T12:00Z cycle to 67.2°F in the 20261007T06:00Z — a move of +10.0°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 Saturday at 09Z
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)
9.3 °F normal 10.0 °F
current run
Milepost
1316 · laid 2026-10-07T16:25:12Z
Model
nbm-qmd · cycle 20261007T06:00Z
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
0329b80a189dcc061a89285859705010ad63a362cda0eee18accaeb2594d617c
Machine
JSON