Opinion: Can One Atmospheric River End California’s Drought?

Given the quantity and intensity of last week’s rain, an obvious question is: ‘Is the drought over?’ Alas, the answer is a resounding no. But, the data are interesting and worth thinking about in more detail. As of now, the 8 station index in the northern Sierra registers 12.6 inches of cumulative precipitation. Because the water year just started (October 1), all of this came from the recent atmospheric river. It was an impressive storm, and set quite a few local one-day precipitation records.