let's bring in meteorologist chris schaffer who is also with w.c.c.o. hris, we heard a report, 90 hours of frigid cold. how long will this frigid danger zone expand? >> jim, we'll have to endure this for three days. check all these temperatures. on monday, much of the midwest will feel like the planet hoth. many of these areas, nine below in chicago and the subzero reaches as far south as st. louis. >> axelrod: but it's not just the upper midwest. >> no, this polar express is going to barrel through the east and southeast, i think there will be freeze warnings as far south as florida and probably some excited kids in parts of alabama and georgia making snow angels and snowmen with one to three inches of snow. >> axelrod: snow in alabama, this is uncommon. chris shaffer, thank you. the weather would've made a mess of things anyway on a major travel weekend with people coming home from holiday trips. but new rules that take effect today, limiting pilot hours in the air, are creating ripple effect chaos around the country for passengers who are trying to re