Highlights
- NWS Phoenix canceled a severe Flood Watch for Scottsdale/Paradise Valley and roughly 20 other zones at noon MST Monday, August 31.
- The watch had warned of 1 to 2 additional inches of rainfall capable of flooding low-water crossings and low-lying areas.
- Storms were expected to continue through early evening, mainly across La Paz, northern Yuma, and western Maricopa Counties.
- No further instructions were issued with the expiration notice; residents should monitor NWS Phoenix for updated conditions.
FLOOD WATCH EXPIRATION: The National Weather Service in Phoenix expired a severe Flood Watch for Scottsdale/Paradise Valley and more than 20 surrounding zones at noon MST Monday, August 31, after determining the flooding threat had ended.
The watch, issued at 11:51 a.m. MST, had warned that training storms could produce an additional 1 to 2 inches of rainfall, causing rapid runoff and flooding of low-water crossings and low-lying areas across a broad swath of south-central Arizona. Affected zones included Cave Creek/New River, Deer Valley, Central Phoenix, North Phoenix/Glendale, New River Mesa, Rio Verde/Salt River, East Valley, Fountain Hills/East Mesa, South Mountain/Ahwatukee, Southeast Valley/Queen Creek, Superior, Northwest Pinal County, Apache Junction/Gold Canyon, Tonto Basin, Mazatzal Mountains, Pinal/Superstition Mountains, San Carlos, Dripping Springs, Globe/Miami, and Southeast Gila County.
The NWS noted that the broader monsoon environment remained conducive for additional showers and thunderstorms through early evening, concentrated mainly across La Paz, northern Yuma, and western Maricopa Counties.
Residents should continue to monitor NWS Phoenix for any new watches or warnings as storm activity persists through the evening hours.
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 18:56
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 18:56. Every claim traces to a source.
