First published Oct 21, 2026, 8:01:16 AM UTC · Last updated Oct 21, 2026, 8:35:15 AM UTC

Thunderstorms and lightning

Severe Thunderstorm Warning — NWS Flagstaff AZ

Original source title

Severe Thunderstorm Warning issued October 21 at 12:43AM MST until October 21 at 1:00AM MST by NWS Flagstaff AZ

Reported by U.S. National Weather Service Alerts NWS, U.S. National Weather Service Alerts NWS

A radar-indicated severe storm was reported near Childs Power Plant, moving northeast across Gila and Yavapai counties, with tennis-ball-size hail and 60 mph gusts. The warning called for shelter indoors through 1:45 a.m. MST.

At a glance

Affected location: Gila and Yavapai counties, Arizona
The warning called for shelter indoors through 1:45 a.m.

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Why it matters

The warning directs anyone outdoors to shelter inside a well-built structure and stay away from windows.

Update history

Oct 21, 2026, 8:13 AM UTC
A radar-indicated severe storm was reported near Childs Power Plant, moving northeast across Gila and Yavapai counties, with tennis-ball-size hail and 60 mph gusts. The warning called for shelter indoors through 1:45 a.m. MST.
U.S. National Weather Service Alerts NWS

Generated scores

Scores are based on the cited reporting and use a 1–10 scale. Read the methodology.

Confidence: 8/10How certain the assessment is based on the clarity and evidence in the cited reporting.
Geographic reach: 3/10How widely the event reaches, from a local area (1) to worldwide impact (10).
Global importance: 2/10The event's broader significance, from limited importance (1) to major global importance (10).
Impact magnitude: 4/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 8/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

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