(CNN) You may have heard of atmospheric rivers impacting the West Coast. Apparently, atmospheric rivers also occur in the eastern US, unleashing a river of moisture like what we will see this week. The reason East Coast atmospheric rivers aren't talked about much isn't because they are rare. The West gets about half that number of atmospheric rivers each year, yet they account for double the annual rainfall percentage. It will combine with the available moisture provided by the atmospheric river we talked about and will result in the perfect setup for severe weather.

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