This particular California winter has unfolded in good news/bad news fashion. Courtesy of a string of recurring atmospheric rivers, potent storms have caused flooding, power outages and canceled flights. But they have also lifted all but a thin slice of the state near the Oregon border completely out of drought. On the left, below, you can see the map released last week by the U.S. Drought Monitor, which is almost completely devoid of colors indicating various levels of parchedness. On the right is the same map from three years ago, bleeding brick-red and showing nearly 40 percent of the state in the most advanced stage of drought.