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.

Drizzly, wet conditions are expected to improve at Alyeska on Wednesday. Intermittent high cloud cover will be remain through Thursday. A weak storm arrives to maritime mountains on Friday, bringing a snow showers into Saturday AM. Clouds generally clear up for Sunday-Monday. Tuesday marks the likely beginning of an region wide outflow wind event.