Sep 1, 2023
Saturated conditions from preceding storms, combined with widespread heavy rainfall of 1-2 inches over a 24 hour period, across the Susitna and Matanuska River Valleys Sept 1, 2023. These conditions and widespread, consistent rainfall pushed streams to bankfull with large swaths of the valleys experiencing minor flooding.
Source: NOAA National Weather Service Storm Events Database (event 1129881). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Susitna Valley County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.