Dec 23, 2021
A deep upper trough with a warm subtropical moisture fetch in front of it pushed into central California during the evening of December 22 and brought a period of rain and higher elevation snow to the area which continued through the evening of December 23. Several stations in the Sierra Nevada measured between 1 and 3 inches of liquid precipitation with the snow level between 8000 and 9000 feet. Rain shadowing kept precipitation amounts in the San Joaquin Valley lower with a half inch to an in
Source: NOAA National Weather Service Storm Events Database (event 990428). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Fresno County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.