“Rain over the past week has increased soil moisture to high levels across western Washington,” reports the National Weather Service in Seattle. “Cumulative rainfall has soaked soils to the point where western Washington landslide risk level is moderate…. Areas most susceptible for landslides are steep coastal bluffs and other steep hillsides.”
In southern Oregon, the Coquille River has exceeded its flood stage, bringing minor flooding of farmland and other low-lying areas. Oregon’s Umpqua, Illinois, and Rogue Rivers remain under flood watch as well.
Meanwhile, northern California is expecting another inch of rain, with coastal mountains seeing as much as six inches of precipitation before the storm moves out by Thursday.
Before this tail end of the storm system, some areas had seen as much as 15-20 inches of rain since Nov. 27. The storm on Sunday dropped as much as an inch of rain an hour in some areas while toppling trees, causing flash flooding to roadways, and knocking out power, according to the Associated Press
Still, forecasters said larger rivers in the region were expected to remain below flood stage, and the high winds that accompanied the storms had abated.
"The winds will be much lighter than over the weekend. The rainfall amounts will also be lower," National Weather Service meteorologist Holly Osbourne told the AP.