Severe Thunderstorm Warning issued October 21 at 3:16AM MST until October 21 at 3:30AM MST by NWS Flagstaff AZ

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1. Saved by us

   21 October 2026 at 10:25 UTC

   Version 2

   7 recorded details changed

   Title

   Before

   Severe Thunderstorm Warning issued October 21 at 3:07AM MST until October 21 at 3:30AM MST by NWS Flagstaff AZ

   After

   Severe Thunderstorm Warning issued October 21 at 3:16AM MST until October 21 at 3:30AM MST by NWS Flagstaff AZ

   Source updated

   Before

   21 October 2026 at 10:07 UTC

   After

   21 October 2026 at 10:16 UTC

   Effective from

   Before

   21 October 2026 at 10:07 UTC

   After

   21 October 2026 at 10:16 UTC

   Forecast onset

   Before

   21 October 2026 at 10:07 UTC

   After

   21 October 2026 at 10:16 UTC

   Official description

   Before

   At 307 AM MST, a severe thunderstorm was located 8 miles east of Chino Valley, moving north 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... Prescott Valley, Prescott, Chino Valley, Clarkdale, Dewey-Humboldt, Prescott Regional Airport, Yavapai County Fairgrounds, Mingus Mountain, Fain Lake, Watson Lake and Woodchute Mountain. This includes the following highways... State Route 69 between mile markers 278 and 293. State Route 89A between mile markers 318 and 343. This includes the following recreation areas and campgrounds... Potato Patch Campground, Playground Group Cam…

   After

   At 316 AM MST, a severe thunderstorm was located 10 miles northeast of Chino Valley, moving north at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Prescott Valley, Chino Valley, Dewey-Humboldt, Yavapai County Fairgrounds, Mingus Mountain, Fain Lake and Woodchute Mountain. This includes the following highways... State Route 69 between mile markers 281 and 289. State Route 89A between mile markers 323 and 343. This includes the following recreation areas and campgrounds... Potato Patch Campground, Playground Group Cam…

   Official instructions

   Before

   Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds and large hail.

   After

   Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large hail. Continuous cloud to ground lightning is occurring with this storm. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning.

   External source link

   Before

   https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.dce995059e63b42ad6a080a1d16bc22b5688751e.001.1

   After

   https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4eb9a905b35c5ca8974439e7523d160e0aa4cd68.001.1

   Bulletin issued: 21 October 2026 at 10:16 UTC

   View saved version 2

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

   {
     "id": "nws:86e4e068d905aa219f10e677",
     "authorityId": "urn:oid:2.49.0.1.840.0.4eb9a905b35c5ca8974439e7523d160e0aa4cd68.001.1",
     "sender": "w-nws.webmaster@noaa.gov",
     "references": [
       {
         "identifier": "urn:oid:2.49.0.1.840.0.463f24c85829c90beb6cde63cb77c83018ec69d6.001.1",
         "sender": "w-nws.webmaster@noaa.gov"
       },
       {
         "identifier": "urn:oid:2.49.0.1.840.0.dce995059e63b42ad6a080a1d16bc22b5688751e.001.1",
         "sender": "w-nws.webmaster@noaa.gov"
       }
     ],
     "category": "weather",
     "title": "Severe Thunderstorm Warning issued October 21 at 3:16AM MST until October 21 at 3:30AM MST by NWS Flagstaff AZ",
     "eventType": "Severe Thunderstorm Warning",
     "occurredAt": "2026-10-21T10:16:00.000Z",
     "issuedAt": "2026-10-21T10:16:00.000Z",
     "timeBasis": "Bulletin issued",
     "effectiveAt": "2026-10-21T10:16:00.000Z",
     "onsetAt": "2026-10-21T10:16:00.000Z",
     "expiresAt": "2026-10-21T10:30:00.000Z",
     "forecastEndAt": "2026-10-21T10:30:00.000Z",
     "severity": "Severe",
     "urgency": "Immediate",
     "certainty": "Observed",
     "messageType": "Update",
     "status": "Source update",
     "place": "Yavapai, AZ",
     "coordinates": null,
     "issuer": "NWS Flagstaff AZ",
     "summary": "Severe Thunderstorm Warning · Yavapai, AZ. Severe; observed; urgency: immediate.",
     "description": "At 316 AM MST, a severe thunderstorm was located 10 miles northeast\nof Chino Valley, moving north at 45 mph.\n\nHAZARD...Quarter size hail.\n\nSOURCE...Radar indicated.\n\nIMPACT...Damage to vehicles is expected.\n\nLocations impacted include...\nPrescott Valley, Chino Valley, Dewey-Humboldt, Yavapai County\nFairgrounds, Mingus Mountain, Fain Lake and Woodchute Mountain.\n\nThis includes the following highways...\nState Route 69 between mile markers 281 and 289. State Route 89A\nbetween mile markers 323 and 343.\n\nThis includes the following recreation areas and campgrounds...\nPotato Patch Campground, Playground Group Campground and Mountainview\nPark.",
     "instruction": "Seek shelter inside a well-built structure and stay away from\nwindows. This storm is capable of producing large hail.\n\nContinuous cloud to ground lightning is occurring with this storm.\nLightning is one of nature's leading killers. Remember, if you can\nhear thunder, you are close enough to be struck by lightning.",
     "url": "https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.4eb9a905b35c5ca8974439e7523d160e0aa4cd68.001.1",
     "source": "nws",
     "sourceName": "NOAA NWS"
   }

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