Arizona Severe Severe Thunderstorm Warning | Effective 07/20/2026 17:37

Headline: 
Severe Thunderstorm Warning issued July 20 at 5:37PM MST until July 20 at 6:15PM MST by NWS Flagstaff AZ
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 20, 2026 - 5:37pm
Expires: 
July 20, 2026 - 6:15pm
Description: 
SVRFGZ The National Weather Service in Flagstaff has issued a * Severe Thunderstorm Warning for... Gila County in east central Arizona... Coconino County in north central Arizona... Navajo County in north central Arizona... * Until 615 PM MST. * At 537 PM MST, severe thunderstorms were located along a line from 14 miles north of Chevelon Canyon Lake to 9 miles north of Valley View Point, or along a line from 23 miles south of Winslow to 18 miles east of Forest Lakes, moving southwest at 30 to 40 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... Forest Lakes, Heber-Overgaard, Chediski Peak, Chevelon Canyon Lake, Willow Springs Canyon Lake, Mogollon Rim Visitor Center, Mogollon Airpark, Chevelon Canyon Dam, Durfee Crossing, Chevelon Crossing and Chevelon Butte. This includes the following highways... State Route 260 between mile markers 283 and 313. State Route 277 between mile markers 306 and 309. This includes the following recreation areas and campgrounds... Sinkhole Campground, Chevelon Crossing Campground, Chevelon Canyon Lake Campground, Gentry Campground, Forest Road 237 Camping Area, Forest Road 171 Camping Area, Black Canyon Rim Campground, Canyon Point Campground, Airplane Flat Campground, Colcord Ridge Campground, Sinkhole Campground, Larson Ridge Camping Area, Upper Canyon Creek Campground, Valentine Ridge Campground, Camp Shadow Pines, Willow Springs Lake Recreation Area, Sardine Point Day Use Area, Black Canyon Lake Recreation Area and Tall Timbers County Park.
Instruction: 
Seek shelter inside a well-built structure and stay away from windows. These storms are capable of producing damaging winds and large hail.
Area Description: 
Coconino, AZ; Gila, AZ; Navajo, AZ
Forcast Office: 
NWS Flagstaff AZ