The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County on September 16 at 1:26 PM MST, effective until 3:30 PM MST. Doppler radar indicated thunderstorms producing heavy rain across the area, with 1 to 2 inches already fallen. Expected rainfall rates are 1 to 2 inches per hour, with additional accumulation of 0.5 to 1 inch possible.
Flash flooding is ongoing or expected to begin shortly in small creeks, streams, urban areas, highways, streets, underpasses, and low-lying areas. Affected locations include Mesa, Gilbert, East Mesa, and Superstition Springs Mall. The National Weather Service advises residents to turn around and avoid flooded roads, as most flood deaths occur in vehicles.
Source: National Weather Service.
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- National Weather Service retrieved 16/09/2026 20:28
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 16/09/2026 20:28. Every claim traces to a source.
