California in the rain.
Hit by an "incessant parade of cyclones", the state on the American west coast will experience new deluges on Thursday and Friday, after floods and landslides which have already killed at least 18 people.
According to the National Weather Service (NHS), the forecast inclement weather will move towards the northern part of the region.
Other states on the Pacific Northwest coast are expected to be affected Saturday morning, the weather agency added.
The torrential rains of the previous days on soils already saturated with water generated vast power cuts, numerous floods, uprooted a number of trees and cut off major roads, the floods sometimes carrying motorists.
Rainfall levels not seen in over 100 years
In places, levels of precipitation never reached for a hundred and fifty years have been recorded.
Part of northern California was placed under flood alerts or winter weather warnings on Wednesday.
More than 35,000 homes and businesses were without power early Thursday, according to the specialized site PowerOutage.us.
According to California authorities, the storms of the past few weeks have caused at least 18 deaths, "more than the wildfires of the past two years".
In Paso Robles, in the center of the state, a five-year-old child remained missing after being swept away by the waves on Monday while his mother, who survived, drove him to school.
According to the Los Angeles Times, the deadly toll of recent storms includes motorists trapped by flooding in their cars, residents crushed by falling trees, a couple killed by a landslide and bodies washed away by the waves.
California is currently undergoing "an endless onslaught of atmospheric rivers", unseen since 2005, according to the weather services.
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