The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County on September 16 at 2:13 PM MST. Doppler radar indicated thunderstorms producing heavy rain across the area, with 1 to 2 inches already fallen. Additional rainfall up to 0.5 inches is possible, and flash flooding is ongoing or expected to begin shortly.
The warning remains in effect until 5:15 PM MST. Life-threatening flash flooding is expected to affect creeks and streams, urban areas, highways, streets, and underpasses. Affected locations include Phoenix, Peoria, New River, and Anthem. The National Weather Service urges residents to avoid 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 21:18
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 21:18. Every claim traces to a source.
