Live/Severe Alerts/Record/October 21, 2026

Warnings and watches, October 21, 2026

Every warning and watch the weather service first issued on October 21, 2026 (UTC), in the order of its hazards, each a door to its own report; a warning tagged with a damage threat with the most severe it reached; a river flood with the category of its flooding and its crest; the space weather that began that day, by the NOAA scales; and each volcano whose alert level changed.