mufflers came out of the closets, much too soon for most. >> it's cold. i don't like the cold. i'm a summer baby. >> i try to bundle up as much as i can. >> reporter: they are also bundling up in new york city, and the worst is still to come. heavy rains are in store for the east coast on tuesday in to wednesday. severe weather is already wreaking havoc at airports across the country. hundreds of flights have been cancelled with more to come. >> it could be one of the worst we have seen the last four or five years. >> reporter: the website flightaware has found a way to illustrate the domino effect of cancelled flights. call it the misery map. places like dallas, houston, showed a lot of red for cancellations and delays on monday, but watch as the map moves atlanta, d.c., and new york turned red, with some of the 25 million americans getting on a plane this week. brandi hitt, abc news, los angeles. >> this storm system will impact major airline hubs and very busy highways just before thanksgiving. >> our coverage continuing right now with the latest from accu-weather and meteorologist jim dickey. good morning, jim. >> reporter: good morning, john and diana. a travel nightmare lies ahead of us here. the storm will strengthen through wednesday.