Do take whatever precautions you must because that is extremely dangerous cold. I read recently that we lose a lot more people to the cold than we do to extreme heat, or even gunfire.
As for you moving, I don't doubt that you are sincere. But I seem to recall you saying pretty much the same thing during the last polar vortex. But then it passed and spring came and you remembered all the great things about where you live. So we'll see.
I've definitely commented about moving several times. I have lived practically from coast to coast, and up north and down south, but I've been back here in Wisconsin from Phoenix and then Reno for about 12 years now, and as much as I do like Wisconsin, it is far more cool/cold here than warm/hot. Summer seems to just scream past and we're back to winter. Winter seems perpetual, the dominate season here. We get a cold Spring, a Summer that flashes by, and then right back to cool if not cold Fall, and... WINTER. It's wearing on me. Hard to say if I'll move again or not. What I might look into is going south for the winter like so many others do. I'm going to take a trip down south and do some scouting around and see if I can find a nice winter rental.
Some of us were studying the latitudes of the United States once, to see where they'd end up they went in a straight line east across the Atlantic. The end destinations were between the South of France and North Africa.
The US is a southern country.
Why so cold?
That's what the folks we call 'snowbirds' do. They enjoy their wonderful summer and fall in the north and then head south in their RVs or 5th wheels to Phoenix, Scottsdale, Tuscon, Las Cruces etc. where they spend the winter and early spring. Some do have arrangements for winter rentals.
We had some sub-zero days sometimes several days in a row in north central Kansas and that was miserable, but nothing like what you are experiencing in the upper midwest now. Nosmo's -7 f degrees would look like a heat wave to you folks in Wisconsin today.
Our really cold spell was short lived so that it is barely getting into freezing territory if at all overnight now and days are sunny and in the 40's and 50's. Everyone is concerned their daffodils and other early blooming plants will be fooled into making too early an appearance though we do expect crocuses by mid to late February.
I wanna see, I wanna see!!!!
