shelter from the cold the bone chilling weather has caused more than two thousand flight cancellations school and office closures transit delays and multi-car pileups on slippery roads even the u.s. postal service whose unofficial motto takes pride in their work has halted mail delivery in many places the polar vortex looks to be lingering through the rest of the week only then might it release millions of people from its icy embrace. has ventured out into the chilly streets of chicago and sent us this update. this is one of the most populous cities in the country and there's barely a soul on the street the ones we have run into have been warmly advising us to seek shelter as soon as possible it's so cold that exposed skin could frostbite immediately and your hair and even your eyeballs could freeze the chicago river which is a massive body of water right next to me is completely frozen over the coal has also worked at the city's train tracks forcing officials to light the tracks on