Tallying the damage will take time, but the number of houses and other structures that will be red-tagged as uninhabitable could be in the "low thousands," said Brian Ferguson, spokesperson for the Governor's Office of Emergency Services.
Nine atmospheric rivers since late December caused power outages, flooding, levee breaks, washouts and landslides nearly statewide. At least 20 people were killed. Forecasters cautioned that although the midweek rainfall will be light, it could be enough to cause problems because the state is so saturated.
"Towering piles of rock and mud reach over 40 feet tall in some locations, blocking access to roadways and leaving residents isolated to the canyon," the sheriff's office said in a weekend statement.