The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County effective at 9:38 PM MST on August 12, expiring at 12:30 AM MST on August 13. Doppler radar and automated rain gauges indicated between 0.5 and 1.5 inches of rain had fallen by 9:38 PM, with a Maricopa County Flood Control District streamflow gauge reaching alarm stage at Rainbow Wash. Additional rainfall up to 0.25 inches is possible.
Flash flooding is ongoing or expected to begin shortly, with life-threatening impacts to creeks, streams, urban areas, highways, streets, and underpasses. Areas including Buckeye and Painted Rock Dam, along with low water crossings downstream of Rainbow Wash on Old US 80 and Patterson Road, will experience flooding. The National Weather Service advises turning around rather than attempting to cross flooded roads, noting that most flood deaths occur in vehicles.
Source: National Weather Service.
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- National Weather Service retrieved 13/08/2026 04:40
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 13/08/2026 04:40. Every claim traces to a source.
