Key facts
- Alert
- Severe Thunderstorm Warning (severe)
- Issued by
- National Weather Service, Flagstaff AZ
- Areas
- Coconino, AZ; Gila, AZ; Yavapai, AZ
- Places
- Pine, Strawberry, Hanging Garden, Fossil Springs Wilderness, The Toilet Bowl, West Clear Creek Wilderness, Baker Butte Lookout
- In effect
- until 11:00 AM MST, Oct 21, 2026
- Damage threat
- Considerable
- Detection
- Possible
What the National Weather Service says
“Anyone outdoors should move to shelter inside a well-built structure and stay away from windows.”
NWS Flagstaff AZ, Severe Thunderstorm Warning, 10:39 AM MST Oct 21, 2026 · official alert
“This storm is capable of producing dangerous hail.”
NWS Flagstaff AZ, Severe Thunderstorm Warning, 10:39 AM MST Oct 21, 2026 · official alert
What to do
If you are outdoors, move inside a well-built structure now and stay away from windows. Hail of this size can injure people and animals.
Tornadoes can develop quickly from severe thunderstorms. If a tornado threatens, go to an interior room on the lowest floor of a well-built structure.
The National Weather Service says a Tornado Watch remains in effect until 600 PM MST Wednesday for parts of north central and west central Arizona. Drivers on State Route 260 and State Route 87 in the warned area should be alert for hail and seek shelter.
Follow the instructions of local officials and the National Weather Service.
Context
FEMA flood-insurance claims count only insured properties, so they show part of past flood impacts. Records show 300 claims in Coconino County, 155 in Gila County and 470 in Yavapai County, as of September 9, 2026.
FEMA has also issued past disaster declarations for severe storms and flooding in these counties, including declaration 4620 in Coconino County on September 13, 2021. This warning is for hail and wind, not flooding.
Updates
- The severe thunderstorm warning expired at 11:00 AM MST.
- NWS Flagstaff AZ issued the severe thunderstorm warning until 11:00 AM MST.
History here
Coconino County: 300 flood insurance claims in FEMA's National Flood Insurance Program records since 1978, most recent 2026.
Coconino County: recent federal disaster declarations
- DR-4620 (2021): severe storms and flooding
- DR-1940 (2010): severe storms and flooding
- DR-1888 (2010): severe winter storms and flooding
Gila County: 155 flood insurance claims in FEMA's National Flood Insurance Program records since 1980, most recent 2025.
Gila County: recent federal disaster declarations
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 severe thunderstorm warning in Strawberry, Arizona?
- Yes. The National Weather Service issued a Severe Thunderstorm Warning that remains in effect until 11:00 AM MST, and Strawberry is among the locations in the storm's path.
- How big is the hail in this storm?
- The National Weather Service says radar indicated two inch hail. It warns that people and animals outdoors will be injured and that roofs, siding, windows and vehicles may be damaged.
- Which areas are covered by the warning?
- The warning covers parts of Coconino, Gila and Yavapai counties in Arizona. Places named include Pine, Strawberry, Fossil Springs Wilderness, West Clear Creek Wilderness and Baker Butte Lookout.
Sources
- NWS Flagstaff AZ: Severe Thunderstorm Warning, Oct 21, 2026 weather.gov
- 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.