Event narrative (NOAA)
Isolated strong thunderstorms developed across the northern portions of the greater Phoenix area during the afternoon hours on July 31st. During the late afternoon the storms congealed and intensified in the Anthem area, and they produced excessive rainfall which led to episodes of flash flooding. Radar indicated that peak rainfall rates were in excess of 3 inches per hour, and one weather observer measured more than 5 inches of rain within 90 minutes. According to the Anthem Fire Department and Rescue, the heavy rain filled up the Deadman Wash drainages in town and overflowed, leading to severe flooding in a number of homes. Much of the flooding occurred between 6 pm and 7 pm. At about 610 pm flood waters backing up in the wash overtopped a brick wall behind a home causing the wall to co
Other notable flash flood events in Arizona
Source: NOAA/NCEI Storm Events Database. Deaths and injuries are those NOAA classifies as direct. Damage is the reporting office's estimate at the time and is not inflation-adjusted. This is a catalogue record, not a forecast.