http://www.newsweek.com/san-francisco-flooding-california-storms-bomb-cyclone-atmospheric-river-weather-1771175

San Francisco is preparing for a barrage of heavy rain, high winds, and flooding as it faces the twin threat of an atmospheric river and a bomb cyclone. The weather front is expected to hit on Wednesday evening and continue into Thursday, with further storms anticipated in the coming days.

The National Weather Service (NWS) issued a flood watch for San Francisco and many of the surrounding areas of northern California, predicting between 2-4 inches of rain in the valleys, and up to 10 inches in coastal mountain regions.