Edition 2026-10-14 The Ledger Archive API RSS Weather Trader
Milepost
1380

TheForecast Post

A chronicle of American weather and climate  ·  Wednesday, 14 October 2026

Dallas, Texas Revisions MILEPOST 1380

Dallas's forecast for Friday has moved 9°F colder

75°F in the 20261012T06:00Z run, 66°F in the 20261014T00:00Z — the 3rd-largest revision of the 7 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 Friday, October 16 at 18Z in Dallas, that trail runs from 74.8°F in the 20261012T06:00Z cycle to 66.2°F in the 20261014T00:00Z — a move of -8.6°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 18Z
api.weather.city /v1/history (nbm-qmd)
-8.6 °F normal 0.0 °F · 3 of 7
8 synoptic cycles
10th-to-90th percentile spread at that hour
api.weather.city (nbm-qmd)
9.1 °F normal 8.6 °F
current run
Milepost
1380 · laid 2026-10-14T10:25:16Z
Model
nbm-qmd · cycle 20261014T00:00Z
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
d26892ee12ac285d74707154b0e4c51f4dc342a2dbae3b82935da9a6b5f3fc89
Machine
JSON