Mar 22, 2023
A storm system moving across the west coast in combination with well above normal moisture levels for mid March standards with values above the 99th percentile resulted in waves of light to moderate rainfall activity across the region. The heaviest rainfall was observed across the areas to the north and east of Phoenix, where multiple inches of rain were observed. Given that the flows along rivers, small streams, creeks, and washes were elevated due to previous precipitation activity from previo
Source: NOAA National Weather Service Storm Events Database (event 1089096). 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.