Realistically, though, there are only two directions to go with a vehicle larger than a bicycle in my rural coastal valley. The "wilderness" is already at my doorstep. It's far more likely we'll stay put unless the house is untenable (home destruction of some sort or violent threat) or the well water becomes unsafe. Cascadia subduction earthquake, wildfire, windstorm, and landslide are the biggest threats. Flooding is possible, but only likely if one of the others happens first and clogs the river, in which case I'll be checking with neighbors to see who has dynamite

Note that, just like urban highways will be clogged with traffic, it's also likely that the cellular network will be overloaded, so have an alternate communication plan.