Jul 25, 2021
A retrograding upper level low combined with anomalously high moisture levels led to showers and isolated thunderstorms producing heavy rainfall and numerous instances of considerable flash flooding across south-central Arizona on the 25th. The places that saw the heaviest rainfall amounts were areas that experienced heavy showers training over the same locations. Western portions of the Phoenix metro saw training showers with heavy rainfall occur, leading to widespread amounts of 1.5-2.5 with l
Source: NOAA National Weather Service Storm Events Database (event 976646). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in La Paz County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.