Despite the fierce winter storm that brought an avalanche of snow to the Sierra Nevada last week, water officials say the state’s snowpack is far behind its desired level. Before the storm, comparisons were being made to record-breaking dry years. So why isn’t there more panic about a potential drought? The state’s reservoir levels and drinking water supply are in good shape, largely because last year was exceptionally wet, said Dave Rizzardo, of the California Department of Water Resources.