The National Weather Service in Phoenix issued a Severe Thunderstorm Warning for Maricopa and Pinal counties effective at 9:46 PM MST on August 19, expiring at 10:30 PM MST. An outflow boundary was located over Downtown Scottsdale near Paradise Valley at 9:45 PM MST, moving northwest at 40 mph. Hazards include 60 mph wind gusts, large hail, and continuous cloud-to-ground lightning.
Impacted areas include Phoenix, Mesa, Chandler, Glendale, Scottsdale, Gilbert, Tempe, Peoria, Surprise, Avondale, Goodyear, Apache Junction, El Mirage, Fountain Hills, and Paradise Valley. Damage to roofs, siding, and trees is expected. Residents should move to an interior room on the lowest floor of a building immediately. Interstate 10 between mile markers 123 and 169, Interstate 17 between mile markers 195 and 220, and Route 51 between mile markers 1 and 15 are affected.
Source: National Weather Service.
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- National Weather Service retrieved 20/08/2026 04:50
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 20/08/2026 04:50. Every claim traces to a source.
