Sep 23, 2019
During the early morning hours on September 23rd, copious tropical moisture began to spread north and into south-central Arizona. A weather system dropping south out of Nevada began to act on the moisture, resulting in the development of numerous showers and thunderstorms. Some of the storms produced copious amounts of rain with peak rain rates in excess of 2 inches per hour. Many locations across the high terrain east of Phoenix measured more than 3 inches of rain during the morning hours. Mult
Source: NOAA National Weather Service Storm Events Database (event 849957). 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.