Sep 23, 2019
Copious amounts of tropical moisture spread north and into south-central Arizona during the morning hours on September 23rd, leading to widespread showers and thunderstorms. Some of the stronger storms generated intense rain with peak rain rates between 1 and 2 inches per hour. Storms and heavy persisted through the afternoon and into the evening and resulted in several episodes of flash flooding across the central deserts to the west and northwest of Phoenix. Multiple stream gauges from the Mar
Source: NOAA National Weather Service Storm Events Database (event 850965). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Maricopa County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.