The National Weather Service in Phoenix issued a Severe Thunderstorm Warning for Maricopa County at 4:15 p.m. MST on September 12, effective until 5 p.m. MST. At the time of issuance, a severe thunderstorm was located over Estrella Mountain Park near Avondale, moving north at 10 mph. Hazards include 60 mph wind gusts, with radar indicating the threat.
Impacted areas include Avondale, Goodyear, Cashion, Phoenix International Raceway, Liberty, Estrella Mountain Park, and Estrella Mountain Ranch, as well as Interstate 10 near mile marker 128. Residents should expect damage to roofs, siding, and trees. The National Weather Service advises moving to an interior room on the lowest floor of a building for protection.
Source: National Weather Service.
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- National Weather Service retrieved 12/09/2026 23:19
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 12/09/2026 23:19. Every claim traces to a source.
