Late December Storms Deliver Much-Needed Snowpack and Water Supply for California

The Department of Water Resources conducted the first snow survey of the season at Phillips Station on Dec. 30. The manual survey recorded 24 inches of snow depth and a snow water equivalent of 5 inches, which is 50 percent of average for this location. The snow water equivalent measures the amount of water contained in the snowpack and is a key component of DWR’s water supply forecast. Statewide, the snowpack was 71 percent of average for this date.

The results are welcome news for water managers who rely on the statewide snow surveys to make water supply decisions for the year ahead. California’s statewide snowpack had been lacking in early December with above-average temperatures and very little storm activity. Recent storms have turned that around and provided a significant boost to the snowpack and the state’s water supply.