User blog comment:SmokeJawDiscord/If you need help with custom SPC risks.../@comment-35706104-20181229134029/@comment-9154802-20190102004138

As I prefer to define it; a Super Outbreak is continuous tornadic activity in which 100 or more tornadoes touch down in 24 hours across 10 or more states. Of these 50% need to be significant (EF2+), and 10% Violent (EF4+). For Example:

This would be classifiable as a Super Outbreak.

As such, it'd be impossible for continuous activity to carry on from the Pacific Northwest. You may get a small outbreak of a few tornadoes, but nothing serious. If you want a Super Outbreak, you'll have to take your idea east of the Rockies. The Great Plains, Dixie Alley, and Hoosier Alley are locations best served for such an event. Though I should note, outbreaks east of the Mississippi tend to be larger.