An atmospheric river—a weather system that moves a high concentration of water vapor outside of the tropics—is expected to bring rainfall to certain regions in California this week, with temperature drops expected in major cities like Los Angeles.
A winter storm system had already hit places like the Bay Area on Monday, bringing with it a Category 4 atmospheric river. By Tuesday, the river could bring up to one to three inches of rain to coastal regions and three to five inches of rain to higher elevations, the National Weather Service (NWS) told CBS San Francisco. The weather service expects the Monday–Tuesday storm to kick off a wet week.
