outside of d.c. reagan national airport. planes are still taking off here, ashleigh. >> keep an eye on it for us if you will, athena. thank you for that. there was some little nugget of information that crossed our wires today that i thought immediately chad meyers is going to have to speak to this because apparently the coldest temperature ever registered on earth has now actually been funneled into the record books, 138.8 degrees below zero, chad, at the south pole, and this very strange statistic that the scientists down there do naked dashes when the weather goes under 100 degrees. you're the only one who can explain this. >> it's called cold air damming and drainage. we get air on top of a mountain it all wants to go down. just like when you open up the freezer at your house, you open up the top of the freezer. what do you see all that steam or all that fog? it comes out and where does it go? goes straight down because it's heavier than the air around it. as you said it goes in the record books, guinness book of world records says wait not so fast, you didn't measure it with