First published Oct 21, 2026, 8:10:15 PM UTC · Last updated Oct 21, 2026, 8:10:15 PM UTC

Thunderstorms and lightning

Severe Thunderstorm Warning for Navajo County, Arizona, issued by NWS Flagstaff

Reported by U.S. National Weather Service Alerts NWS

At 12:49 PM MST, a radar-indicated severe thunderstorm in Navajo County was moving north at 50 mph, with quarter-size hail and expected vehicle damage. The warning runs until 1:15 PM MST, and the National Weather Service advised sheltering inside a well-built structure and staying away from windows.

At a glance

Affected location: Navajo County, Arizona

Share this event

Follow: Severe weather in United States

Manage follows

Why it matters

The warning calls for immediate shelter in the affected area because the storm is capable of producing large hail.

Location

Show nearby reports · last 30 days

Highlighted marker: this event.

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: 2/10How 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: 3/10The scale or severity of the real-world impact, from minor (1) to extreme (10).
Urgency: 9/10How time-sensitive the event is, from low urgency (1) to immediate attention needed (10).

Primary official sources

U.S. National Weather Service Alerts NWS Severe Thunderstorm Warning issued October 21 at 12:49PM MST until October 21 at 1:15PM MST by NWS Flagstaff AZ

Report an issue

Read our editorial process and corrections policy.

Continue exploring

Related developments reported in the last 30 days. These are not necessarily ongoing incidents.

Nearby · within 200 km
Severe Thunderstorm Warnings — FlagstaffOct 21, 2026, 7:55 PM UTC
9 related advisories are grouped here. Expand the group to review every affected area and source advisory.
Nearby · within 200 km
Severe Thunderstorm Warning for Yavapai County, ArizonaOct 21, 2026, 11:12 AM UTC
A severe thunderstorm warning was issued for Yavapai County, Arizona, with the storm reported near Williamson Valley and moving northeast. The source describes large hail, damaging wind gusts, and an instruction to seek shelter indoors.
Nearby · within 200 km
Medium satellite-observed smoke area centered at 35.351°N, 112.276°W — Near Williams, AZ, United StatesOct 16, 2026, 8:00 PM UTC
NOAA HMS classified a medium-density smoke area observed by GOES-EAST from 20:00 to 23:30 UTC on October 16, 2026. The record describes satellite-observed smoke extent, not ground-level air quality or a health alert.
Nearby · within 200 km
Medium satellite-observed smoke area centered at 35.366°N, 112.001°W — Near Williams, AZ, United StatesOct 16, 2026, 5:00 PM UTC
3 reports describing the same event are grouped here. Expand the group to review every source report.
Nearby · within 200 km
Heavy satellite-observed smoke area centered at 35.013°N, 111.645°W — Near Flagstaff, AZ, United StatesOct 14, 2026, 8:10 PM UTC
NOAA HMS classified a satellite-observed smoke area near Flagstaff as heavy density during the reported observation period. The source states this is not a ground-level air-quality measurement or health alert.
Nearby · within 200 km
Medium satellite-observed smoke area centered at 35.000°N, 111.638°W — Near Flagstaff, AZ, United StatesOct 14, 2026, 8:10 PM UTC
A satellite observation classified a medium-density smoke area near Flagstaff, Arizona. The source says this is not a ground-level air-quality measurement or health alert.

Loading related developments…

Explore severe weather in united states