The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County effective at 4:37 PM MST on September 16, expiring at 5:45 PM MST. Doppler radar indicated moderate rainfall across the area, with 2 to 4 inches of rain already fallen. Additional rainfall up to 0.5 inches is possible, and flash flooding is ongoing or expected to begin shortly.

Life-threatening flash flooding threatens creeks, streams, urban areas, highways, streets and underpasses. Affected locations include Scottsdale, New River, Cave Creek, Carefree, Desert Mountain and Seven Springs. The National Weather Service advises residents to turn around and avoid flooded roads; most flood deaths occur in vehicles attempting to cross flooded areas.

Source: National Weather Service.

Sources

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  1. National Weather Service retrieved 16/09/2026 23:38

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 23:38. Every claim traces to a source.