Severe Thunderstorm Warning
Severe Thunderstorm Warning issued October 21 at 11:14PM MST until October 21 at 11:30PM MST by NWS Flagstaff AZ
Affected area: Coconino, AZ
Effective: Oct 21, 2026 11:14 PM GMT-0700
Expires: Oct 21, 2026 11:30 PM GMT-0700
Alert details
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.
Safety information
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.
Source: NWS Flagstaff AZ
View the official National Weather Service alert
This post is automatically updated from official National Weather Service alert data.
