NOAA NWS / Event history
Severe Thunderstorm Warning issued October 21 at 10:39AM MST until October 21 at 11:00AM MST by NWS Flagstaff AZ
Severe Thunderstorm Warning · Coconino, AZ; Gila, AZ; Yavapai, AZ. Severe; observed; urgency: immediate.
- Bulletin issued
- 21 October 2026 at 17:39 UTC
- First saved by us
- 21 October 2026 at 17:40 UTC
- Last included in a daily record
- 21 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
- Source classification
- Severe · Source update
A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.
- Issuer / area
- NWS Flagstaff AZ · Coconino, AZ; Gila, AZ; Yavapai, AZ
- Certainty / urgency
- Observed / Immediate
- Message expiry (not hazard end)
- 21 October 2026 at 18:00 UTC
- Forecast onset / end
- 21 October 2026 at 17:39 UTC / 21 October 2026 at 18:00 UTC
Archived official description
At 1039 AM MST, a severe thunderstorm was located near Strawberry, or 18 miles northwest of Payson, moving northeast at 45 mph. HAZARD...Two inch hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect damage to roofs, siding, windows, and vehicles. Locations impacted include... Pine, Strawberry, Hanging Garden, Fossil Springs Wilderness, The Toilet Bowl, West Clear Creek Wilderness and Baker Butte Lookout. This includes the following highways... State Route 260 between mile markers 240 and 251. State Route 87 between mile markers 267 and 286. This includes the following swimming holes... All swimming holes and waterfalls on Fossil Creek and Fossil Creek Dam "The Toilet Bowl".
Instructions in this archived message
Anyone outdoors should move to shelter inside a well-built structure and stay away from windows. This storm is capable of producing dangerous hail. Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. A Tornado Watch remains in effect until 600 PM MST Wednesday for portions of north central and west central Arizona.
The saved record
What changed
0 updates · 1 first record
Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.
First saved record · 21 October 2026 at 17:40 UTC
Saved by us
Starting point
First saved record
Our first saved version of Severe Thunderstorm Warning issued October 21 at 10:39AM MST until October 21 at 11:00AM MST by NWS Flagstaff AZ. We have no earlier saved version to compare.
Bulletin issued: 21 October 2026 at 17:39 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
{ "id": "nws:3d83349e2a5a9b51e3f56b9f", "authorityId": "urn:oid:2.49.0.1.840.0.0f0d584751cc5e4622c9f0f941be052e93327253.001.1", "sender": "w-nws.webmaster@noaa.gov", "references": [ { "identifier": "urn:oid:2.49.0.1.840.0.2f3416e1d2e4d4ae1bfb10d39698a0034ee42c0f.001.1", "sender": "w-nws.webmaster@noaa.gov" } ], "category": "weather", "title": "Severe Thunderstorm Warning issued October 21 at 10:39AM MST until October 21 at 11:00AM MST by NWS Flagstaff AZ", "eventType": "Severe Thunderstorm Warning", "occurredAt": "2026-10-21T17:39:00.000Z", "issuedAt": "2026-10-21T17:39:00.000Z", "timeBasis": "Bulletin issued", "effectiveAt": "2026-10-21T17:39:00.000Z", "onsetAt": "2026-10-21T17:39:00.000Z", "expiresAt": "2026-10-21T18:00:00.000Z", "forecastEndAt": "2026-10-21T18:00:00.000Z", "severity": "Severe", "urgency": "Immediate", "certainty": "Observed", "messageType": "Update", "status": "Source update", "place": "Coconino, AZ; Gila, AZ; Yavapai, AZ", "coordinates": null, "issuer": "NWS Flagstaff AZ", "summary": "Severe Thunderstorm Warning · Coconino, AZ; Gila, AZ; Yavapai, AZ. Severe; observed; urgency: immediate.", "description": "At 1039 AM MST, a severe thunderstorm was located near Strawberry, or\n18 miles northwest of Payson, moving northeast at 45 mph.\n\nHAZARD...Two inch hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...People and animals outdoors will be injured. Expect damage\nto roofs, siding, windows, and vehicles.\n\nLocations impacted include...\nPine, Strawberry, Hanging Garden, Fossil Springs Wilderness, The\nToilet Bowl, West Clear Creek Wilderness and Baker Butte Lookout.\n\nThis includes the following highways...\nState Route 260 between mile markers 240 and 251. State Route 87\nbetween mile markers 267 and 286.\n\nThis includes the following swimming holes...\nAll swimming holes and waterfalls on Fossil Creek and Fossil Creek\nDam \"The Toilet Bowl\".", "instruction": "Anyone outdoors should move to shelter inside a well-built structure\nand stay away from windows. This storm is capable of producing\ndangerous hail.\n\nTornadoes can develop quickly from severe thunderstorms. Seek shelter\nimmediately in an interior room on the lowest floor of a well-built\nstructure.\n\nA Tornado Watch remains in effect until 600 PM MST Wednesday for\nportions of north central and west central Arizona.", "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.0f0d584751cc5e4622c9f0f941be052e93327253.001.1", "source": "nws", "sourceName": "NOAA NWS" }Visit the external source ↗The external page may have changed since this version was saved.