A major pattern shift is underway across the United States, with the West Coast experiencing a return to active weather and the East Coast catching a break from the extreme cold. But the weather across the country remains active, from snow in the Sierra Nevada to a storm in the Bering Sea, to a clipper affecting New England, to another system poised to impact the Southeast and Mid-Atlantic this weekend into early next week. | NOAA NWS Weather Prediction Center

NOAA's GOES East (GOES-19) satellite is tracking the weather systems moving across the Lower 48 this morning. An Alberta Clipper is dropping down from Canada, prompting Winter Weather Advisories across the Northern Tier. In the West, an atmospheric river is bringing the threat for rain and mountain snow to parts of the western U.S. Latest: www.weather.gov | NOAA Satellite and Information Service