Mar 12, 2020
A strong Pacific low pressure system spread considerable moisture into the central Arizona deserts on March 12th, and the combination of strong forcing, deep moisture and modest instability resulted in scattered to numerous showers and thunderstorms. The storms resulted in areas of moderate to heavy rain, resulting in episodes of flooding and flash flooding that impacted areas near and around the greater Phoenix area. Heavy rain to the southwest of Phoenix led to the morning closure of Highway 2
Source: NOAA National Weather Service Storm Events Database (event 872057). 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.