Edition 2026-10-24 The Ledger Archive API RSS Weather Trader
Milepost
1493

TheForecast Post

A chronicle of American weather and climate  ·  Saturday, 24 October 2026

Minneapolis, Minnesota Revisions MILEPOST 1491

Minneapolis's forecast for Friday has moved 17°F warmer

52°F in the 20261022T18:00Z run, 69°F in the 20261024T12:00Z — the largest revision of any city on the roster. The current run's 10th-to-90th percentile spread at that hour is 22°F.

Successive cycles do not merely refresh a forecast; they leave a trail. For Friday, October 30 at 21Z in Minneapolis, that trail runs from 52.1°F in the 20261022T18:00Z cycle to 68.9°F in the 20261024T12:00Z — a move of +16.8°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 Friday at 21Z
api.weather.city /v1/history (nbm-qmd)
16.8 °F normal 0.0 °F · 1 of 5
8 synoptic cycles
10th-to-90th percentile spread at that hour
api.weather.city (nbm-qmd)
21.8 °F normal 16.8 °F
current run
Milepost
1491 · laid 2026-10-24T22:25:22Z
Model
nbm-qmd · cycle 20261024T12:00Z
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
c7e3ca53212a563711baec43cec2440bbb04a99da12ad057cc33f968b0b02971
Machine
JSON