A weak La Niña is forecast for the Pacific. Here's what it means for winter weather in the Bay Area

The Climate Prediction Center predicts that this winter will be dominated by a weak La Niña in the equatorial waters of the Pacific Ocean.

La Niña is widely believed to result in drier-than-average winters in California. But as recent examples show, the exact opposite can and does occur in weak La Niñas.

In fact, some of the strongest winters in recent years occurred while the Pacific was experiencing a weak La Niña. The Climate Prediction Center's official forecast for California this winter calls for “equal chances” of being either above or below average, but what exactly does that mean and how did they get there?

I explain what this means for our winter prospects in the Bay Area in the video above.