Significant atmospheric river to bring heavy rain to Northern California this weekend

From the California Weather Blog:

““Heavy” and “rain” are not words that have been used in the same sentence for a long time here in California, but it does appear that–for the first time in 14 months–some truly substantial precipitation is headed for parts of NorCal. I discussed in my last post the seemingly modest potential for an Eastern Pacific atmospheric river to impact California over the upcoming weekend, and in the meantime the numerical forecast models have trended considerably stronger with this event. Current satellite imagery depicts the early stages of what promises to be a significant precipitation event over the weekend.

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The California Weather Blog has all the details here.