Sep 27, 2014
A vigorous upper level low pressure system and associated cold front combined to produce strong thunderstorms with locally heavy rain over south central Arizona during the afternoon and evening hours on September 27th. During the early afternoon, a severe squall line moved east across south central Arizona, bringing damaging winds. Shortly thereafter, heavy rains developed which initially led to both urban flooding and flash flooding; as the afternoon progressed more significant areal flooding d
Source: NOAA National Weather Service Storm Events Database (event 541007). 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.