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Ended official alertUpdated

Severe Thunderstorm Warning for Graham, 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
Graham
Effective
Ended
Official severity
Severe
Official urgency
Immediate
Official certainty
Observed

What is happening

At 355 PM MST, a severe thunderstorm was located 19 miles northwest of Willcox, moving northeast at 30 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind...

What the bulletin says to do

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

Read official NWS bulletin

Full official description

Bulletin details

At 355 PM MST, a severe thunderstorm was located 19 miles northwest of Willcox, moving northeast at 30 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. Locations impacted include... Roper Lake State Park, Fort Grant, Bonita, Mount Graham, Frye Mesa Dam and Swift Trail Junction. This includes the following highways... Route 191 between mile markers 105 and 115. Route 266 between mile markers 109 and 126.

Lifecycle record

Official revisions

2 captured
  1. Update

    Severe Thunderstorm Warning issued October 21 at 3:55PM MST until October 21 at 4:30PM MST by NWS Tucson AZ

    Official revision
  2. Alert

    Severe Thunderstorm Warning issued October 21 at 3:49PM MST until October 21 at 4:30PM MST by NWS Tucson AZ

    Official revision

Source and limitations

Publisher: Weather Alert Watch. Primary source: NWS Tucson 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