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Thunderstorms and lightning

Severe Thunderstorm Warning — NWS Flagstaff AZ

Original source title

Severe Thunderstorm Warning issued October 21 at 1:56AM MST until October 21 at 2:15AM MST by NWS Flagstaff AZ

Reported by U.S. National Weather Service Alerts NWS

An observed severe thunderstorm in Coconino, Arizona, was reported with 60 mph wind gusts and quarter-size hail. The warning instructed people to shelter inside a well-built structure and stay away from windows; it was published at 8:56 UTC on October 21, 2026.

At a glance

  • Affected location: Coconino, Arizona
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Why it matters

The warning called for immediate shelter from a storm capable of producing damaging winds and large hail.

Location

Highlighted marker: this event.

Generated scores

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

Confidence
8/10
Geographic reach
2/10
Global importance
2/10
Impact magnitude
4/10
Urgency
9/10

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