Unseasonably warm conditions exist in the west. Later this week, a cold front will move into the PNW and Sierra, bringing some snowfall back. Interior BC might be chaseable as well. Cold air tracks from the Sierra to the northern Rockies over the weekend while it stays warmer in the central and southern regions. Snow will return to the west with the colder air. The extended forecast might be deep!
A period of mostly dry weather has begun, enforced by a stable large-scale pattern. A weak storm will bring snow showers to Alyeska late Mon-Tuesday with only a small refresh expected. The next dose of precipitation may arrive