A flood watch is issued for portions of SE LA due to heavy rainfall expected tonight and into tomorrow morning. Flash flooding is possible. Local waterways may also run high due to excessive runoff, this could cause flooding in low lying urban areas.

The first notable atmospheric river of the season is due to impact Northern California this week and could bring heavy rain and flood risk to the Bay Area, according to the National Weather Service. The weather system is due to arrive mid-week with the heaviest impact expected in the North Bay.

A powerful winter storm brewing near the Pacific Northwest is forecast to bring damaging gusts, feet of mountain snow and heavy rain to parts of Central California and the Bay Are

A series of storms fueled by an atmospheric river is taking aim at the Bay Area, intensified by a so-called "bomb cyclone" that promises heavy rain and potential flooding.

Clark County can expect lots of rain in the coming days, although the flood risks predicted earlier have decreased, according to the National Weather Service in Portland.