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Severe Thunderstorm Warning issued October 21 at 11:14PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ

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

See what changed ↓Detailed event record ↗
Bulletin issued
22 October 2026 at 06:14 UTC
First saved by us
22 October 2026 at 06:10 UTC
Last included in a daily record
22 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)
22 October 2026 at 06:30 UTC
Forecast onset / end
22 October 2026 at 06:14 UTC / 22 October 2026 at 06:30 UTC

Archived official description

At 1114 PM MST, a severe thunderstorm was located 7 miles south of Cosnino, or 11 miles southeast of Flagstaff, moving north at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... East Flagstaff, Mountain View Ranches, Cosnino, Winona, Country Club, Walnut Canyon National Monument, Fisher Point, Marshall Lake, Upper Lake Mary and Lower Lake Mary. This includes the following highways... Interstate 40 between mile markers 200 and 213. U.S. Highway 89 near mile marker 419. Route 66 between mile markers 200 and 204. This includes the following recreation areas and campgrounds... Pine Grove Campground, Lake View Campground, Lakeview Campground, Foxglenn 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 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

1 update · 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.

Showing 1 change

  1. Saved by us

    Version 2

    Source status changed

    Title
    Before

    Severe Thunderstorm Warning issued October 21 at 11:02PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ

    After

    Severe Thunderstorm Warning issued October 21 at 11:14PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ

    Source updated
    Before

    22 October 2026 at 06:02 UTC

    After

    22 October 2026 at 06:14 UTC

    Effective from
    Before

    22 October 2026 at 06:02 UTC

    After

    22 October 2026 at 06:14 UTC

    Forecast onset
    Before

    22 October 2026 at 06:02 UTC

    After

    22 October 2026 at 06:14 UTC

    Message type
    Before

    Alert

    After

    Update

    Source status
    Before

    Source alert

    After

    Source update

    Official description
    Before

    SVRFGZ The National Weather Service in Flagstaff has issued a * Severe Thunderstorm Warning for... Coconino County in north central Arizona... * Until 1130 PM MST. * At 1102 PM MST, a severe thunderstorm was located near Mormon Lake, or 18 miles southeast of Flagstaff, moving north at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... East Flagstaff, Mountain View Ranches, Cosnino, Winona, Mormon Lake, Lakeview, Country Club, Walnut Canyon National Monument, Fisher Point, Mormon Mountain, Upper Lake Mary, Marshall Lake, Perry Lake, Ashurst Lake and Lower Lake Mary. This includes the following highways... Interstate 40 between mile markers 200 and 214. U.S. Highway 89 near mile marker 419. Route 66 between mile markers 200 and 204. This includes the following recreation areas and campgrounds... Dairy Springs Campground, Double Springs Campground, Ashurst Lake Campgrounds, Pine Grove Campground, Forked Pine Campground, Dairy Springs Campground, Double Springs Campground, Lake View Campground, Lakeview Campground, Foxglenn Park, Bushmaster Park and Fort Tuthill County Park.

    After

    At 1114 PM MST, a severe thunderstorm was located 7 miles south of Cosnino, or 11 miles southeast of Flagstaff, moving north at 40 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... East Flagstaff, Mountain View Ranches, Cosnino, Winona, Country Club, Walnut Canyon National Monument, Fisher Point, Marshall Lake, Upper Lake Mary and Lower Lake Mary. This includes the following highways... Interstate 40 between mile markers 200 and 213. U.S. Highway 89 near mile marker 419. Route 66 between mile markers 200 and 204. This includes the following recreation areas and campgrounds... Pine Grove Campground, Lake View Campground, Lakeview Campground, Foxglenn Park, Bushmaster Park and Fort Tuthill County Park.

    External source link
    Before

    https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.3c4021d65499516e3b0a52558321651be26bfa6d.001.1

    After

    https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.492f4b3e694e87e8c20889ff63898bb78c7e20e7.001.1

    Bulletin issued: 22 October 2026 at 06:14 UTC

    View saved version 2

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

    {
  "id": "nws:fc2b2715c4bb84d279919729",
  "authorityId": "urn:oid:2.49.0.1.840.0.492f4b3e694e87e8c20889ff63898bb78c7e20e7.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [
    {
      "identifier": "urn:oid:2.49.0.1.840.0.3c4021d65499516e3b0a52558321651be26bfa6d.001.1",
      "sender": "w-nws.webmaster@noaa.gov"
    }
  ],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 11:14PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-22T06:14:00.000Z",
  "issuedAt": "2026-10-22T06:14:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-22T06:14:00.000Z",
  "onsetAt": "2026-10-22T06:14:00.000Z",
  "expiresAt": "2026-10-22T06:30:00.000Z",
  "forecastEndAt": "2026-10-22T06:30:00.000Z",
  "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 1114 PM MST, a severe thunderstorm was located 7 miles south of\nCosnino, or 11 miles southeast of Flagstaff, moving north at 40 mph.\n\nHAZARD...Quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Damage to vehicles is expected.\n\nLocations impacted include...\nEast Flagstaff, Mountain View Ranches, Cosnino, Winona, Country\nClub, Walnut Canyon National Monument, Fisher Point, Marshall Lake,\nUpper Lake Mary and Lower Lake Mary.\n\nThis includes the following highways...\nInterstate 40 between mile markers 200 and 213. U.S. Highway 89 near\nmile marker 419. Route 66 between mile markers 200 and 204.\n\nThis includes the following recreation areas and campgrounds...\nPine Grove Campground, Lake View Campground, Lakeview Campground,\nFoxglenn Park, Bushmaster Park and Fort Tuthill County Park.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing large hail.\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:2.49.0.1.840.0.492f4b3e694e87e8c20889ff63898bb78c7e20e7.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}
    Visit the external source ↗

    The external page may have changed since this version was saved.

First saved record · 22 October 2026 at 06:10 UTC

  1. Saved by us

    Starting point

    First saved record

    Our first saved version of Severe Thunderstorm Warning issued October 21 at 11:02PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ. We have no earlier saved version to compare.

    Bulletin issued: 22 October 2026 at 06:02 UTC

    View saved version 1

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

    {
  "id": "nws:8ff46afad0e7ea5e66415759",
  "authorityId": "urn:oid:2.49.0.1.840.0.3c4021d65499516e3b0a52558321651be26bfa6d.001.1",
  "sender": "w-nws.webmaster@noaa.gov",
  "references": [],
  "category": "weather",
  "title": "Severe Thunderstorm Warning issued October 21 at 11:02PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ",
  "eventType": "Severe Thunderstorm Warning",
  "occurredAt": "2026-10-22T06:02:00.000Z",
  "issuedAt": "2026-10-22T06:02:00.000Z",
  "timeBasis": "Bulletin issued",
  "effectiveAt": "2026-10-22T06:02:00.000Z",
  "onsetAt": "2026-10-22T06:02:00.000Z",
  "expiresAt": "2026-10-22T06:30:00.000Z",
  "forecastEndAt": "2026-10-22T06:30:00.000Z",
  "severity": "Severe",
  "urgency": "Immediate",
  "certainty": "Observed",
  "messageType": "Alert",
  "status": "Source alert",
  "place": "Coconino, AZ",
  "coordinates": null,
  "issuer": "NWS Flagstaff AZ",
  "summary": "Severe Thunderstorm Warning · Coconino, AZ. Severe; observed; urgency: immediate.",
  "description": "SVRFGZ\n\nThe National Weather Service in Flagstaff has issued a\n\n* Severe Thunderstorm Warning for...\nCoconino County in north central Arizona...\n\n* Until 1130 PM MST.\n\n* At 1102 PM MST, a severe thunderstorm was located near Mormon Lake,\nor 18 miles southeast of Flagstaff, moving north at 40 mph.\n\nHAZARD...Quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Damage to vehicles is expected.\n\n* Locations impacted include...\nEast Flagstaff, Mountain View Ranches, Cosnino, Winona, Mormon\nLake, Lakeview, Country Club, Walnut Canyon National Monument,\nFisher Point, Mormon Mountain, Upper Lake Mary, Marshall Lake,\nPerry Lake, Ashurst Lake and Lower Lake Mary.\n\nThis includes the following highways...\nInterstate 40 between mile markers 200 and 214. U.S. Highway 89 near\nmile marker 419. Route 66 between mile markers 200 and 204.\n\nThis includes the following recreation areas and campgrounds...\nDairy Springs Campground, Double Springs Campground, Ashurst Lake\nCampgrounds, Pine Grove Campground, Forked Pine Campground, Dairy\nSprings Campground, Double Springs Campground, Lake View Campground,\nLakeview Campground, Foxglenn Park, Bushmaster Park and Fort Tuthill\nCounty Park.",
  "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing large hail.\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:2.49.0.1.840.0.3c4021d65499516e3b0a52558321651be26bfa6d.001.1",
  "source": "nws",
  "sourceName": "NOAA NWS"
}
    Visit the external source ↗

    The external page may have changed since this version was saved.