Mar 4, 2023
Anomalous snowfall across the high terrain of Arizona as well as lower elevation rainfall led to greater than normal runoff into the Salt and Verde watersheds. As a result of this, dam releases were conducted at multiple locations in these watersheds, leading to heightened flows in these rivers. Upstream releases led to additional releases from Granite Reef Dam, which initially began to cause impacts on the 4th when releases from the dam increased above 1,000 cfs. Granite Reef Dam releases conti
Source: NOAA National Weather Service Storm Events Database (event 1090023). 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.