The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County on September 16 at 1:44 PM MST, effective until 4:45 PM MST. Doppler radar indicated thunderstorms producing heavy rain across the area, with 0.5 to 1 inch already fallen. Expected rainfall rates are 1 to 2 inches per hour, with additional rainfall amounts of 1 to 2 inches possible.
Flash flooding is ongoing or expected to begin shortly in Phoenix, Scottsdale, Paradise Valley, and surrounding areas, including the Salt River, Indian Bend Wash, and Cave Creek. Flooding may affect small creeks and streams, urban areas, highways, streets, underpasses, and low-lying drainage areas. The National Weather Service advises turning around and not driving on flooded roads, as most flood deaths occur in vehicles.
Source: National Weather Service.
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- National Weather Service retrieved 16/09/2026 20:48
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 20:48. Every claim traces to a source.
