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Riders wait on the finish line of the World Cup Parallel Giant Slalom race at the World Cup Super finals Snowboard and FreeStyle at Sierra Nevada ski resort near Granada March 20, 2013. The World Cup Parallel Giant Slalom race was cancelled due to bad snow conditions.
It's been a dry winter the last couple months here in California. Great for garden parties, but not so great for the Sierra snow pack. According to scientists' preliminary surveys, the snow pack is about half of normal for this time of year.
That could mean less water for the state's cities and farmers through the dry summer months. Here to explain is Frank Gehrke, head of the Snow Surveys Program with the California Department of Water Resources.