An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, and thunderstorms were threatening to add to the storm's impacts.

The Bay Area woke up on Tuesday to the sound of pattering rain from a winter storm that soaked the region overnight, and forecasters say it’s only expected to intensify as a cold front moves through this afternoon.

The second peak of an ongoing atmospheric river storm arrived in Northern California Monday afternoon, prompting flood watches and a winter storm warning up in the Sierra.