Tornado · Arizona

Tornado Warning for Clarkdale and Yavapai County, AZ

The National Weather Service in Flagstaff issued a Tornado Warning for Yavapai County, Arizona, until 8:45 AM MST on Wednesday, October 21, 2026. At 8:18 AM MST, a storm that could produce a tornado was over Jerome, moving north at 45 mph.

Key facts

Alert
Tornado Warning (extreme)
Issued by
National Weather Service, Flagstaff AZ
Areas
Yavapai, AZ
Places
Clarkdale, Jerome, Jerome State Historic Park, Sycamore Canyon Wilderness, Parsons Spring, Sycamore Canyon, Woodchute Mountain
In effect
until 8:45 AM MST, Oct 21, 2026
Detection
Radar indicated
The red outline is the area the National Weather Service put under the tornado warning. Source: NWS alert polygon. Not to scale with roads.
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What the National Weather Service says

“Move to an interior room on the lowest floor of a well-built building away from windows.”

NWS Flagstaff AZ, Tornado Warning, 8:18 AM MST Oct 21, 2026 · official alert

“If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.”

NWS Flagstaff AZ, Tornado Warning, 8:18 AM MST Oct 21, 2026 · official alert

What to do

Move now to an interior room on the lowest floor of a well-built building, away from windows. Do not wait to see the storm.

If you are outdoors, in a mobile home or in a vehicle, get to the closest substantial shelter. Protect yourself from flying debris.

The warning covers State Route 89A between mile markers 338 and 348. Drivers there should not stay in a vehicle if a sturdy building is nearby.

Stay sheltered until the warning ends at 8:45 AM MST or the National Weather Service says the danger has passed.

Context

FEMA records show 470 flood insurance claims in Yavapai County between 1978 and 2026. These counts cover only insured properties and relate to flooding, not tornadoes.

FEMA's most recent listed disaster declaration for the county is number 1888, from March 18, 2010, for severe winter storms and flooding.

Updates

  1. The tornado warning is no longer in effect.
  2. NWS Flagstaff AZ issued the tornado warning until 8:45 AM MST.

History here

Yavapai County: 470 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.

Yavapai County: recent federal disaster declarations

  • DR-1888 (2010): severe winter storms and flooding

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Questions

Is there a tornado warning in Yavapai County, Arizona?
Yes. The National Weather Service in Flagstaff issued a Tornado Warning for Yavapai County at 8:18 AM MST. It runs until 8:45 AM MST on October 21, 2026.
Which places are affected by the Yavapai County tornado warning?
The National Weather Service lists Clarkdale, Jerome, Jerome State Historic Park, Sycamore Canyon Wilderness, Parsons Spring, Sycamore Canyon and Woodchute Mountain. It also includes State Route 89A between mile markers 338 and 348.
How was the tornado detected and how fast is the storm moving?
Radar indicated rotation. At 8:18 AM MST the storm was over Jerome, 8 miles west of Cottonwood, moving north at 45 mph. The hazard is a tornado and quarter size hail.

Sources

  1. NWS Flagstaff AZ: Tornado Warning, Oct 21, 2026 weather.gov
  2. FEMA OpenFEMA: NFIP claims and disaster declarations fema.gov

How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.