The warm temps over the west will slowly cool as the week progresses, with some weak waves of snowfall hitting the PNW and BC. Snow levels from 6500 Thursday fall to near 3500-4,000 to close out the week. A significant storm will overspread the west from Sunday night to mid-next week. Some spots in the Sierra could see 50-plus inches of powder.

Several inches of new snow was reported across northern New England on Thursday morning with more snow expected on Thursday night. A long-duration precipitation event is on deck for this weekend with a mix of snow, sleet, freezing rain, and rain possible through Tuesday.

A couple of nice days of spring in the West will turn to a stormy pattern with several rounds of snow through next week. Cold northwest flow will bring good powder conditions through many Western U.S. states. In the East, active storms will take a northerly track and bring rain, confining cold air and snow to the northern tiers.