The National Weather Service issued a Flood Warning for Maricopa County at 12:49 AM MST on September 17, effective until 3:00 AM MST. Flooding caused by excessive rainfall is already occurring in the warned area, with between 2 and 4 inches of rain reported. Affected waterways include North Canyon Creek, Beardsley Canal, Agua Fria River, Cave Creek, Deadman Wash, Apache Wash, Skunk Creek, and New River.
Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is imminent or ongoing. Impacts are expected to continue as water works through local drainage systems in urban areas, including Phoenix, Glendale, Peoria, and near Deer Valley Airport. 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 17/09/2026 07:53
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 17/09/2026 07:53. Every claim traces to a source.
