After a weak storm kicks off the week with light rain in Southern California, a stronger and colder system is expected to deliver more widespread precipitation up and down the state on Wednesday and Thursday, soaking coastal areas, including San Francisco and Los Angeles, and dumping several feet of snow in the Sierra Nevada.

The Southern California area has one more day of sunny conditions before a set of storms will bring moderate to heavy rain and snow over the next couple of days, forecasters say. The National Weather Service said a slight chance of rain will develop overnight Monday as the first storm continues to make its way into the region.