NOAA NWS / Event history

Severe Thunderstorm Warning issued October 21 at 1:08AM MST until October 21 at 1:30AM MST by NWS Flagstaff AZ

Severe Thunderstorm Warning · Coconino, AZ. Severe; observed; urgency: immediate.

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Bulletin issued: 21 October 2026 at 08:08 UTC
First saved by us: 21 October 2026 at 08:10 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
Certainty / urgency: Observed / Immediate
Message expiry (not hazard end): 21 October 2026 at 08:30 UTC
Forecast onset / end: 21 October 2026 at 08:08 UTC / 21 October 2026 at 08:30 UTC

Archived official description

At 108 AM MST, a severe thunderstorm was located 5 miles southeast of Mountainaire, or 12 miles south of Flagstaff, moving northeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... East Flagstaff, Downtown Flagstaff, Kachina Village, Forest Highlands, Mountainaire, Northern Arizona University, Country Club, Sunnyside, Railroad Springs, Coconino Estates, Pine Canyon, Riordan Mansion State Historic Park, Mt Elden Estates, Pine Del, Flagstaff Pulliam Airport and Walnut Canyon National Monument. This includes the following highways... Interstate 40 between mile markers 195 and 200. Interstate 17 between mile markers 327 and 339. Route 66 between mile markers 195 and 199. Highway 180 between mile markers 217 and 218. This includes the following recreation areas and campgrounds... Canyon Vista Campground, Canyon Vista Campground, Lake View Campground, Lakeview Campground, Ponderosa Trails Park, Thorpe Park, Wheeler Park, Foxglenn Park, Buffalo Park, McPherson Park, Bushmaster Park and Fort Tuthill County Park.

Instructions in this archived message

Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail. Torrential rainfall is also occurring with this storm and may lead to flash flooding. Do not drive your vehicle through flooded roadways.

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 08:10 UTC

Saved by us

21 October 2026 at 08:10 UTC

Starting point

First saved record

Our first saved version of Severe Thunderstorm Warning issued October 21 at 1:08AM MST until October 21 at 1:30AM MST by NWS Flagstaff AZ. We have no earlier saved version to compare.

Bulletin issued: 21 October 2026 at 08:08 UTC

View saved version 1

Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.

{
  "id": "nws:f2233e068f52b98816949ab1",
  "authorityId": "urn:oid:2.49.0.1.840.0.716199adb15145d33d65d7894d733b1afbf574aa.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.1d94e82915a4d80f1cb8f8cc8fd042a12faa3471.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 1:08AM MST until October 21 at 1:30AM MST by NWS Flagstaff AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-21T08:08:00.000Z",
  "issuedAt": "2026-10-21T08:08:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-21T08:08:00.000Z",
  "onsetAt": "2026-10-21T08:08:00.000Z",
  "expiresAt": "2026-10-21T08:30:00.000Z",
  "forecastEndAt": "2026-10-21T08:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Update",
  "status": "Source update",
  "place": "Coconino, AZ",
  "coordinates": null,
  "issuer": "NWS Flagstaff AZ",
  "summary": "Severe Thunderstorm Warning · Coconino, AZ. Severe; observed; urgency: immediate.",
  "description": "At 108 AM MST, a severe thunderstorm was located 5 miles southeast of\nMountainaire, or 12 miles south of Flagstaff, moving northeast at 35\nmph.\n\nHAZARD...60 mph wind gusts and quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Hail damage to vehicles is expected. Expect wind damage to\nroofs, siding, and trees.\n\nLocations impacted include...\nEast Flagstaff, Downtown Flagstaff, Kachina Village, Forest\nHighlands, Mountainaire, Northern Arizona University, Country Club,\nSunnyside, Railroad Springs, Coconino Estates, Pine Canyon, Riordan\nMansion State Historic Park, Mt Elden Estates, Pine Del, Flagstaff\nPulliam Airport and Walnut Canyon National Monument.\n\nThis includes the following highways...\nInterstate 40 between mile markers 195 and 200. Interstate 17 between\nmile markers 327 and 339. Route 66 between mile markers 195 and 199.\nHighway 180 between mile markers 217 and 218.\n\nThis includes the following recreation areas and campgrounds...\nCanyon Vista Campground, Canyon Vista Campground, Lake View\nCampground, Lakeview Campground, Ponderosa Trails Park, Thorpe Park,\nWheeler Park, Foxglenn Park, Buffalo Park, McPherson Park, Bushmaster\nPark and Fort Tuthill County Park.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing damaging winds and large\nhail.\n\nTorrential rainfall is also occurring with this storm and may lead to\nflash flooding. Do not drive your vehicle through flooded roadways.",
  "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.716199adb15145d33d65d7894d733b1afbf574aa.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}

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