I always find the SHTF and head North threads interesting. Being a country boy originally from NH I understand the OP's mindset. However, we will be sheltering in place and sorting out what comes. The only scenario that might require relocation would be a radiation issue be it from Palo Verde Nuke or North Korea. That said I'd still rather be within a structure than a car stuck on the highway if there is a radiation event. Just look at the traffic headed North on a Friday, no thanks can't imagine a full scale evacuation. I dislike most people and that's why we live on a few acres on a County island North of Phoenix proper. Be prepared with food, water and power and see what happens at home. The residents up North will be sorting out the same chit up there as we are down here.
