A Wind Advisory is in effect from 10 PM Sunday (12/14) to 10 PM Monday. Forecasters expect south winds 20 to 25 mph with gusts 45 to 55 mph.
Gusty winds could blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Due to saturated grounds from previous heavy rain, expect more widespread impacts with these winds. Use extra caution when driving, especially if operating a high profile vehicles. Secure outdoor objects.
A Flood Watch remains in effect from Monday morning through Thursday afternoon. Flooding caused by excessive rainfall continues to be possible. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Creeks and streams may rise out of their banks. Flooding may occur in poor drainage and urban areas. Storm drains and ditches may become clogged with debris. Area creeks and streams are running high and could flood with more heavy rain.
A series of weather systems this week will bring another round of significant rainfall to western Washington through Wednesday. Preliminary liquid totals of 2 to 6 inches, locally higher in some spots, will cause additional sharp rises to area rivers. Urban and small stream flooding remains possible for areas with poor drainage.
Very saturated soils will maintain increased risk for potential landslides and debris flows off of burn scars.
Heavy rainfall this week will lead to an increased threat of landslides in Western Washington.
Rainfall from the past week has increased soil moisture to high levels across western Washington. Additional rainfall of around 2-6 inches is expected early this week. This amount of rain will put extra pressure on soil instability, leading to an increased threat of landslides and debris flows, especially from recent burned areas. This rain event could act as a trigger for new landslides.
Areas most susceptible to landslides debris flows under these conditions are steep coastal bluffs, other steep hillsides or road cuts, and recent burned areas. A diminishing threat of landslides and debris flows will continue for several days after the rain ends.