Highlights
- NWS Phoenix issued a Flood Advisory for Maricopa County effective 10:38 p.m. Sunday through 1:45 a.m. Monday.
- Between 0.75 and 1.25 inches of rain had fallen by 10:38 p.m., with up to 0.25 inches more expected.
- Scottsdale, Phoenix, Cave Creek, Carefree, Anthem, and New River are among locations expected to see flooding.
- Motorists are warned not to attempt flooded roads; most flood deaths occur in vehicles, NWS said.
FLOOD ADVISORY: The National Weather Service in Phoenix issued a Flood Advisory for Maricopa County Sunday night at 10:38 p.m. MST, running until 1:45 a.m. MST Monday, August 31.
Doppler radar and automated rain gauges confirmed heavy rain from thunderstorms across the advisory area. Between 0.75 and 1.25 inches of rain had fallen by the time the advisory was issued, with up to an additional 0.25 inches expected. NWS characterized the threat as minor flooding in low-lying and poor drainage areas, with some low-water crossings potentially impassable.
Affected streams and drainages include Grapevine Wash, Cottonwood Creek, Apache Wash, Deadman Wash, Galloway Wash, North Canyon Creek, New River, Skunk Creek, Rodger Creek, Agua Fria River, Beardsley Canal, Cave Creek, and Morgan City Wash.
Locations expected to experience flooding include Phoenix, Scottsdale, New River, Cave Creek, Carefree, and Anthem.
NWS urged drivers not to attempt flooded roads, noting that most flood deaths occur in vehicles. Residents who observe flooding are asked to report it to local emergency services or law enforcement and request they relay the information to the National Weather Service. The Flood Control District of Maricopa County's real-time rainfall map and flooded roadway map are available for current conditions.
The advisory expires at 1:45 a.m. MST Monday.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- api.weather.gov retrieved 31/08/2026 05:41
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 31/08/2026 05:41. Every claim traces to a source.
