Aug 22, 2018
Thunderstorms with locally heavy rain developed to the southwest of Phoenix during the late evening hours on August 22nd, and they persisted into the early morning hours on August 23rd. Some of the stronger storms generated rain with peak rain rates in excess of 1 inch per hour; the heavy rain was sufficient to cause an episode of flash flooding along Highway 238 between the towns of Gila Bend and Mobile. Although much of the terrain southwest of Phoenix is desert, there are some smaller mountai
Source: NOAA National Weather Service Storm Events Database (event 773301). 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.