Well, I’ve lived in the Sierra and I live in the Colorado mountains now. Nothing in Colorado is like the snow in the Sierra when the pattern is like it is now. A foot an hour is common. It’s heavy wet snow as well. You can park a car on the street at night and next morning there is no sign of where you left it. The roads in Colorado close too, mostly from bad drivers.
Roof loads for Tahoe area and Crater Lake, OR is 240 lbs per sq ft, highest in the nation. Sierra snow is very wet!!