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Ended official alertUpdated

Severe Thunderstorm Warning for Coconino, AZ

This alert has ended.Kept for recent context. Do not use it as a current warning.

Official alert fields

What you need to know

Applies to
Coconino
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 447 PM MST, a severe thunderstorm was located 6 miles west of Supai, or 38 miles west of Grand Canyon Village, moving north at 50 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Supai, Havasupai Reservation, Little Navajo...

What the bulletin says to do

Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing large 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 a portion of north central Arizona.

Read official NWS bulletin

Full official description

Bulletin details

At 447 PM MST, a severe thunderstorm was located 6 miles west of Supai, or 38 miles west of Grand Canyon Village, moving north at 50 mph. HAZARD...Half dollar size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Supai, Havasupai Reservation, Little Navajo Falls, Beaver Falls and Mooney Falls. This includes the Colorado River between river miles 143 and 170. This includes the following recreation areas and campgrounds... Above Kanab Camp Site, Opposite Matkat Canyon Camp Site, Matkat Hotel Camp Site, Below Matkat Hotel Camp Site, Upset Hotel Camp Site, Sinyala Camp Site, Very Last Chance Camp Site, First Chance Camp Site, Second Chance Camp Site and Fern Glen Camp Site. This includes the following swimming holes... All swimming holes on Havasu Creek near Supai.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued October 21 at 4:47PM MST until October 21 at 5:00PM MST by NWS Flagstaff AZ

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued October 21 at 4:34PM MST until October 21 at 5:00PM MST by NWS Flagstaff AZ

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Flagstaff AZ. This page reorganizes official fields and does not add a forecast or expand the affected area.

CAP status
Actual
Message type
Update
Last collected
Methodology and corrections