Storms in the US state of California. Heavy rains triggered mudslides and flooded streets.
At least three people died. In some cases, more rain fell in one day than usual in months. Power outages on Monday evening, leaving hundreds of thousands of people without power. The storm was triggered by a so-called “atmospheric river’ – a weather phenomenon in which moist air masses flow from the Pacific to California. Because the moist air mostly comes from the region around Hawaii, the phenomenon is also called the “Pineapple Express”