Highlights

FLOOD WATCH: The National Weather Service in Phoenix issued a Flood Watch Sunday evening covering Scottsdale/Paradise Valley and 16 additional areas across south central Arizona, effective through 5 a.m. MST Monday, August 31.

The watch spans Aguila Valley, Buckeye/Avondale, Cave Creek/New River, Central Phoenix, Deer Valley, East Valley, Fountain Hills/East Mesa, Mazatzal Mountains, New River Mesa, North Phoenix/Glendale, Northwest Valley, Rio Verde/Salt River, South Mountain/Ahwatukee, Southeast Valley/Queen Creek, Tonopah Desert, and Tonto Basin.

According to NWS, ample moisture and atmospheric instability will combine with a weather system positioned over western portions of the region to produce scattered thunderstorms capable of heavy rainfall from Sunday evening into Sunday night. Training of storms could result in localized rainfall amounts of over two inches within the watch area.

Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations, the agency said.

Residents in flood-prone areas should monitor later forecasts and be prepared to take action if a Flood Warning is issued. Additional flood safety information is available at weather.gov/safety/flood.

Sources

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  1. api.weather.gov retrieved 30/08/2026 06:36

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 30/08/2026 06:36. Every claim traces to a source.