This morning bout 630 a cold front has come through and with a vengance. It is minus - 24* C, which is minus -11 F. Its just bitter cold and was such a change, I skied on Sunday and other than a some wind it was pleasant, sunny and almost 40, and that is above. I sure am not skiing today and sure not going flying either. I wonder if a piston engine plane would even start now without preheat. The cockpit would feel like ice. I carry sleeping bags and fire starter, extra gloves and parka, etc. but in reality if one went down and had to spend the night out there, it would be bad, gloves can only do so much. So many nights when I go to sleep its about 20* F, cold but not what I'd call bitter. You can walk from your car to the store or bar with a good parka ok. This is not like that. It will warm up when the sun fully rises, but this time of year the sun is low on the horizon and doesn't do that much.