DISCUSSION: As a strong atmospheric river continues on its current track towards parts of the western United States, there are a few possible scenarios which are projected to unfold (one way or the other) over the course of the next several days. These respective scenarios involve the presence of slightly warmer (or colder) air moving across much of the intermountain west. As a result of this warmer (or potentially colder) air spilling across a large portion of the western United States, there will either be a lot of rain or snow at some of the lower elevations; while there will most definitely be lots of heavy snowfall at the higher elevations (especially at those elevations above 8,500 feet). Hence, if you live across the respective parts of the western United States, be sure to keep tabs on our updates at your local National Weather Service office as well as updates from all of us here at the Global Weather and Climate Center. Be sure to check out the graphic attached above (courtesy of the National Weather Service office in Reno, Nevada) for additional information!
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©2017 Meteorologist Jordan Rabinowitz