handled 48 car wrecks, 211 motorist assists. the state of north dakota went as far as to issue a no travel advisory. by tuesday night, that's when you're talking about temperatures making that severe dip to negative 20 or below. record was set at negative 27. that was back in 1985. salt they put on the roads to make the snow melt that's only effective to 15 degrees below zero. so the wet conditions you see on the road, the water that sits on top of the road, that will all freeze and become a sheet of ice making travel by road treacherous. travel by air, we can tell you they are reporting 1600 flight cancellations, more than 8,000 delays. looks like the misery center of the u.s. of people stuck in the terminal at o'hare airport.