Public schools in several cities in the Bay Area were closed.
KCBS reported that the "Napa, Russian, Navarro and Sacramento Rivers are forecast to peak above flood stage late Thursday or early Friday, adding up to 32 feet of water to their nearly dry banks as torrential rain reaches the watershed."
The storm is being fueled by what's known as a Pineapple Express. That, as we pointed out in 2010, is, in the words of the National Weather Service, "a humorous yet memorable phrase that is used to describe weather systems that have their moisture source in the tropics. For us, the source is close to Hawaii, which has a lot of pineapples!"
Our friends over at KQED are live blogging the storm. You can find that coverage here.