Atmospheric river hits Western Washington with high winds, heavy rain, and possible flooding

December is off to a busy start in terms of the weather.

Another atmospheric river is moving into Western Washington today. It's expected to bring the heaviest rain Monday evening and into Tuesday. Some of the lowland areas are looking at getting anywhere from 1.5 to 3 inches by Wednesday morning. Coastal areas could get as much as 6 inches by then.

Plus, National Weather Service meteorologist Reid Wolcott said conditions could get "disgusting" in the mountains, with both the Olympics and the Cascades looking at nine to ten inches of rain. That's means a lot of snow at higher elevations will start melting and could cause some rivers to swell.