https://www.mercurynews.com/2022/04/01/california-drought-sierra-snowpack-falls-to-one-of-lowest-levels-in-50-years/

Stressed by high temperatures and a record run of dry weather over the last three months, the Sierra Nevada snowpack, the source of 30% of the state’s water supply, has hit one of its lowest levels for the end of winter in generations.

With state water officials scheduled to conduct a snow survey Friday near Sierra-at-Tahoe ski resort, automatic sensors spread across the vast mountain range showed snow levels were just 39% of normal on Wednesday. The measurements were the latest evidence that California’s three-year drought is growing more severe.