A third day of an atmospheric river storm has inundated Northern California and the Bay Area, flooding creeks, roads, and low-lying areas across the region.

An atmospheric river that has brought damaging wind, rain and snow to the Pacific Northwest fed a storm spreading as far south as Los Angeles.

The first atmospheric river storm of the winter rainy season slammed into California on Wednesday. Driven by a powerful “bomb cyclone” off British Columbia, it brought heavy rains to Sonoma and Marin counties, dumping more than 6 inches in the hills above Guerneville by mid-afternoon.