The National Weather Service in Phoenix issued a Flash Flood Warning for Maricopa County effective July 16 at 9:59 PM MST and expiring July 17 at 12:15 AM MST. Doppler radar and automated rain gauges detected thunderstorms producing heavy rain across the area, with 1 to 3 inches already fallen as of 9:59 PM. Additional rainfall up to 1 inch 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 Canyon Lake and Saguaro Lake, along with the Salt River, Cottonwood Creek, Tortilla Creek, and other drainages. The National Weather Service urges residents to avoid flooded roads; most flood deaths occur in vehicles. Exercise extra caution at night when flood dangers are harder to recognize.
Source: National Weather Service.
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- National Weather Service retrieved 17/07/2026 05:04
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 17/07/2026 05:04. Every claim traces to a source.