Biggest Storm Of 2019 To Hit Bay Area, Sierra Due To Atmospheric River, Wind Advisories/Flood Watch

The strongest storm of the year is expected to dump torrents of rain Wednesday and Thursday on the Bay Area and sheets of snow in the Sierra. A cold front will collide with an atmospheric river — a band of moisture that forms over the ocean — to squeeze out varying forms of precipitation as the system travels over land, officials said.

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https://www.sfgate.com/bayarea/article/weather-bay-area-biggest-storm-of-2019-sf-sierra-13536452.php