The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County effective at 4:18 PM MST on September 16. Doppler radar indicated thunderstorms producing heavy rain across the area, with between 0.5 and 2 inches of rain already fallen. Additional rainfall of 0.5 to 1.5 inches is possible, and flash flooding is ongoing or expected to begin shortly.
The warning remains in effect until 8:15 PM MST. Life-threatening flash flooding is expected to affect creeks, streams, urban areas, highways, streets, and underpasses, particularly in rural areas of Maricopa County and drainages including Pump Mine Wash, Tiger Wash, Centennial Wash, and Browns Canyon Wash. The National Weather Service urges residents to avoid flooded roads; most flood deaths occur in vehicles.
Source: National Weather Service.
Sources
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- National Weather Service retrieved 16/09/2026 23:23
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 23:23. Every claim traces to a source.
