The most recent electronic sensor readings show Northern Sierra snow water equivalents at 71% of normal for this date, the Central Sierra at 66%, and, Southern Sierra at 55%. Statewide, the percentage of normal is at 64%. Reservoir storage remains above normal and groundwater storage for most areas is good. Information on reservoir levels can be found at http://watersupplyconditions.water.ca.gov/current_conditions.pdf. The next survey is tentatively scheduled for March 27. Snow-water content is important in determining the coming year's water supply. The measurements help hydrologists prepare water supply forecasts as well as provide others, such as hydroelectric power companies and the recreation industry, with much needed data. Monitoring is coordinated by the Department of Water Resources as part of the multi-agency California Cooperative Snow Surveys Program. Surveyors from more than 50 agencies and utilities visit hundreds of snow measurement courses in California’s mountains each month to gauge the amount of water in the snow pack.