Photos: Sierra Nevada snowpack

Frank Gehrke, right, chief of the California Cooperative Snow Surveys Program, walks with John Thompson, left, Sarah Carvill, center, and Dan Brumbaugh from the California Council on Science and Technology during the snow survey at Phillips Station near Echo Summit, Calif., on March 30.

Frank Gehrke checks the Sierra Nevada snowpack depth at Phillips Station near Echo Summit, Calif., on March 30.

Frank Gehrke talks to reporters after conducting the Sierra Nevada snow survey on March 30.

Willie Pinella, a building maintenance worker for the Sierra at Tahoe Ski Resort, works on a sign leading to the resort near Echo Summit, Calif., on March 30.

Frank Gehrke of the California Cooperative Snow Surveys Program, left, and Gov. Jerry Brown walk across a dry meadow as Gehrke conducts the snow survey near Echo Summit, Calif., on April 1, 2015.