California’s Sierra Nevada snowpack received a modest increase following recent storms, but overall levels remain below average as the state continues to monitor water resources amid ongoing dry conditions.
The California Department of Water Resources conducted its third snow survey of the season at Phillips Station, measuring 28 inches of snow depth and 11 inches of snow water equivalent. These figures represent 47 percent of the average for this location.
Statewide, the Sierra snowpack stands at 66 percent of its typical level for this time of year. A series of cold storms in mid-February helped improve snowpack after a five-week dry period, but officials note that these gains have not fully offset earlier deficits. Recent warmer weather has also caused some melting at lower elevations.
Regional differences are notable. The Southern Sierra snowpack is near average at 90 percent, while the Northern Sierra, which contains several of the state’s largest reservoirs, is at 46 percent of average. This disparity has implications for water supply, as the Sierra snowpack contributes roughly 30 percent of California’s water on average. Snow accumulation usually continues through March, peaking around April 1 before melting into rivers and reservoirs.
Meanwhile, major reservoirs across California are currently at 122 percent of average storage for this time of year. Water managers report efforts to maximize runoff capture in the event of additional storms.
With approximately one month remaining in the snow accumulation season, officials continue to monitor conditions closely.
Photo courtesy UC Berkeley Sierra Central Snow Lab
