The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County on September 16 at 12:42 PM MST, effective until 4:45 PM MST. Doppler radar indicated thunderstorms producing heavy rain across the area, with 0.5 to 1.5 inches already fallen. Expected rainfall rates are 1 to 2 inches per hour, with additional accumulation of 1 to 2 inches possible.
Life-threatening flash flooding is ongoing or expected to begin shortly in Scottsdale, New River, Cave Creek, Carefree, Desert Mountain, and Seven Springs. Flooding will affect creeks, streams, urban areas, highways, streets, and underpasses. The National Weather Service advises turning around and avoiding flooded roads; most flood deaths occur in vehicles attempting to cross water.
Source: National Weather Service
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- National Weather Service retrieved 16/09/2026 19:43
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 19:43. Every claim traces to a source.
