I do not envy you, that is just plain nasty. I left Wichita about 5:00 one morning 15 years ago headed for Topeka and the windchill was -62 F. If I remember the air temp was only something like -13 F, but the winds were "45 and gusting". I do remember that I had to use the ice scraper on the *inside* of the windows as my breath was freezing on them. The defroster could keep just a peep-hole cleared out front. Chuck PS It is that darn "and gusting" that can get you every time here in Kansas ..........