Weather.com - 12/2/12, Chris Dolce and Jon Erdman
An atmospheric river of Pacific moisture has been soaking parts of the West Coast and will continue to do so through the weekend. Below we have a look at the forecast details followed by what we mean by the phrase atmospheric river.
A deep dip, or trough, in the jet stream is currently in place over the eastern Pacific Ocean. This has been sending a parade of frontal systems and upper-level disturbances into the West Coast since Wednesday.
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