Best route from Lubbock, TX to Shelton, WA

Hi new neighbor. I have done the Albuqueque, Salt Lake City route in November going south and didn't have a bit of trouble, and the only snow I hit was in New Mexico. But I was going the other way and I had the time to pull over and wait out the weather. Safe is I5 but you still have the Siskayous to deal with so make sure you bring chains for the truck.
Have to seen RVparkreview.com yet. Great for finding places to camp along the way. You shouldnt need reservations.
Shelton is a wonderful little town and I'm sure you will enjoy living there.