Oct 24, 2021
A strong atmospheric river event produced a major heavy rain, high wind, and high elevation snow event for much of the region. Record-setting rainfall amounts for many areas of the Sierra into western Nevada. NWS Reno received multiple reports of mud and rock slides in the Sierra along I-80 near the summit, and CA 70 and CA 89 in Sierra, Plumas, and Lassen Counties.
Source: NOAA National Weather Service Storm Events Database (event 987335). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Nevada County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.