new york area and across the country. john and christine? will thanks for that. that runway accident at laguardia made a bad air travel day even worse around the country. a big winter storm, translation, nearly 5,000 flights canceled in the u.s. on thursday. that s 20% of all scheduled flights. never left the ground. the icy conditions made the roads dangerous, too. look at this. this is surveillance footage in rhode island. that s awful to see, an out-of-control hash back slides into that parked car there. she did walk away from that crash. the weight of the snow and ice in philadelphia caused the roof of a five-story apartment building collapse. one resident was taken to the hospital in that incident for evaluation. in connecticut, a barn collapsed under the weight of the heavy, wet snow. you can see it all just caved in right there. luckily none of the rescue horses inside were hurt.