Jul 31, 2012
Isolated strong thunderstorms developed across portions of the greater Phoenix area during the mid afternoon hours on July 31st. One storm produced a wind gust to 64 mph at the Deer Valley airport. The thunderstorms moved slowly north, then congealed and intensified over the community of Anthem. Very heavy rains, with rainfall rates in excess of 3 inches per hour, were observed and they led to episodes of flash flooding in the community of Anthem. One weather observer reported rainfall in excess
Source: NOAA National Weather Service Storm Events Database (event 395629). 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.