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.

Here's how much rain and snow fell along the Interstate 5 corridor so far this week, and what else the winter storm will do. Rounding out the work week is another day of moderate, dry and mostly sunny conditions on Friday.

Amid the relentless rain brought by an atmospheric river soaking Northern California, a flash flood warning was issued Friday afternoon for San Francisco and parts of San Mateo County where instances of flooding deemed "life-threatening" were occurring.