causing dangerous travel conditions in the midwest. the national weather service warns that part of the country could see 14-20 hours of continuous snowfall. areas across the dakotas, minnesota, and iowa are expected to get as much as 10 inches before it s over. meanwhile, states across the south have already begun preparations for the storm with north carolina, south carolina, and virginia dekrarg states of emergency. tonight, more than a third of states are under winter storm watches or warnings through sunday afternoon, places as far south as atlanta, which hasn t seen snow in four years, could see up to an inch. we have a lot to get to tonight. cbs elise preston is in moline, illinois, where snow is falling already. good evening, elise. o donnell: good evening, norah. the snow has really picked up here in western ill noish the first punch of a massive winter storm. already today, snow fell at a rate of more than an inch an hour, creating near-whiteout conditions and turning driv