Category

Northwest

Category

While the eastern half of the country waits for the weekend for exciting weather, the West Coast will be impacted by several storm systems before the week is done. This series of low pressure systems will, however, be the set up for the weekend’s big storm. Until then, we’ll focus on the beginning of these systems as they make their week-long trips across the country. To read more about this upcoming weekend storm, check out the past week’s Sunday Storm, written by our Head Meteorologist Josh Feldman, here. Let’s first begin by asking, what is an atmospheric river? According to NOAA, an atmospheric river (AR) is a flowing column of condensed water vapor in the atmosphere that’s usually responsible for producing significant levels of rain and snow. ARs are very common for the western US, and are best known for the very common Pineapple Express. The Pineapple Express is a…