Edition 2026-10-29 The Ledger Archive API RSS Weather Trader
Milepost
1521

TheForecast Post

A chronicle of American weather and climate  ·  Thursday, 29 October 2026

HII The Ledger MILEPOST 1520

Guidance has run 6.3°F warm at HII for a month

The mean signed residual across 395 pairs is +6.29°F, against +0.09°F averaged over all 84 stations with enough samples to score. A bias is not an error the reader can ignore — it is one they can correct for.

Mean absolute error says how far the forecast lands from the observation; the signed mean says which side it lands on. At HII over September 29–October 29, 2026, it lands +6.29°F from the report, across 395 pairs — the largest standing lean of any of the 84 stations currently carrying enough samples.

ASOS reports at :53 and the forecast is stamped on the hour, so a forecast is paired with the nearest observation within 30 minutes and otherwise left unscored.

The numbers in this piece, with what they are measured against
mean signed residual at HII
Forecast Network verification ledger
6.29 °F normal 0.1 °F · 1 of 84
September 29–October 29, 2026
Milepost
1520 · laid 2026-10-29T00:25:26Z
Desk
ledger v1
Method
ASOS reports at :53 and the forecast is stamped on the hour, so a forecast is paired with the nearest observation within 30 minutes and otherwise left unscored.
Source
/home/maue/forecastpoints/data/verify/2026-09.ndjson
/home/maue/forecastpoints/data/verify/2026-10.ndjson
Digest
169216f77d8869edd634ea1df4845b7f00074b3ec34591102271c660e08a1713
Machine
JSON