Jan 5, 2023
A powerful atmospheric river brought very strong winds with moderate to heavy rain and renewed flooding of the already elevated waterways. There was flooding of roadways, urban areas, rivers, streams, and creeks. There were dangerous mountain travel conditions at Sierra pass levels with 6 to 18 inches of snow above 6500 feet. The warm nature of the storm limited snow amounts further down, with just a few inches of accumulation down to 6000 feet. Winds gusted up to 50-60 mph in the Valley, with g
Source: NOAA National Weather Service Storm Events Database (event 1078641). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in San Joaquin County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.