deep freeze and the promise of a warmup on the way. if you want to call the 30s warm at this point. all 50 states dipped below 32 degrees tuesday. even hawaii. check out the fountain outside the county courthouse in the county courthouse in mississippi. it's frozen solid, but the worse may be over for most of the country. nbc meteorologist bill karins joins me now. bill, the vortex, is it disappearing within itself, is it just retreating, explain. >> the piece of it is that so-called attacked us is retreating back up to the north where it should be back up there in northern canada. that's good, chuck, but we're feeling the effects. we're past the worst of it, by far. balmy 15 wind chill in washington, d.c., but the northern plains, fargo, minneapolis, they are feeling the effects. dangerous day to be outside. but the rest of the country, the slow warmup has begun. this is the map you want to see, red, yellows.