Edition 2026-10-07 The Ledger Archive API RSS Weather Trader
Milepost
1310

TheForecast Post

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

Minneapolis, Minnesota Revisions MILEPOST 1308

Minneapolis's forecast for Monday has moved 11°F warmer

55°F in the 20261004T18:00Z run, 66°F in the 20261006T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 24°F.

Successive cycles do not merely refresh a forecast; they leave a trail. For Monday, October 12 at 06Z in Minneapolis, that trail runs from 54.8°F in the 20261004T18:00Z cycle to 66.1°F in the 20261006T12:00Z — a move of +11.3°F across 8 runs.

The change sits well inside the run's own spread, which is the guidance converging rather than reversing.

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 06Z
api.weather.city /v1/history (nbm-qmd)
11.3 °F normal 0.0 °F · 1 of 9
8 synoptic cycles
10th-to-90th percentile spread at that hour
api.weather.city (nbm-qmd)
24.4 °F normal 11.3 °F
current run
Milepost
1308 · laid 2026-10-06T22:25:14Z
Model
nbm-qmd · cycle 20261006T12:00Z
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
e5b59335a537420b4fd741ccc58e8d4768152a650972fcefe8a75cfed55d5a07
Machine
JSON