Highlights
- NWS Phoenix issued a Special Weather Statement at 8:36 p.m. MST Sunday covering most of the Phoenix metro and surrounding desert areas.
- Doppler radar tracked an outflow boundary with trailing showers and thunderstorms moving southwest at 40 mph, with wind gusts up to 50 mph.
- Affected highways include stretches of I-10, I-17, and I-8; the alert expired at 9:30 p.m. MST.
The National Weather Service in Phoenix issued a Special Weather Statement Sunday evening covering a broad swath of the Valley after Doppler radar tracked an outflow boundary with trailing showers and thunderstorms moving southwest at 40 mph.
At 8:36 p.m. MST, the storm line extended from Metro Center to near South Mountain Park to near San Tan Valley. The primary hazard was wind gusts up to 50 mph, with the NWS warning that gusty winds could knock down tree limbs and blow around unsecured objects. The agency advised anyone outdoors to seek shelter inside a building.
Locations in the path included Phoenix, Chandler, Glendale, Tempe, Surprise, Avondale, Goodyear, Buckeye, Casa Grande, El Mirage, Coolidge, Tolleson, Youngtown, Waddell, Laveen, Cashion, Sun City, Sun Lakes, Maricopa, and Queen Creek. Highway impacts covered AZ Interstate 10 between mile markers 108 and 146 and between mile markers 159 and 204, AZ Interstate 17 between mile markers 195 and 209, and AZ Interstate 8 between mile markers 129 and 178.
The statement was rated moderate severity and covered areas including the Northwest Valley, Tonopah Desert, Buckeye/Avondale, Central Phoenix, North Phoenix/Glendale, East Valley, South Mountain/Ahwatukee, Southeast Valley/Queen Creek, Northwest Pinal County, West Pinal County, and the Sonoran Desert National Monument.
The alert expired at 9:30 p.m. MST. Motorists on affected highway corridors and property owners with unsecured outdoor items should monitor NWS Phoenix for any follow-on statements as the boundary moves through.
Sources
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- api.weather.gov retrieved 21/07/2026 03:39
Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 21/07/2026 03:39. Every claim traces to a source.
