2-3 different storm systems are riding the jet stream into OR, WA, and British Columbia with heavy precipitation.
The first storm system is abnormally warm with high snow levels between 6,000-8,000ft, but levels fall on Friday and Saturday to 3,000ft as colder air moves in.
I’m forecasting heavy snow totals at mid-mountain and higher. Click on my forecast to enlarge:
This strong, moist PNW flow might continue next week as well. This is what you would expect during a La Nina pattern.