double-check your flight. this will be impacting people all along the east coast. we have three cities with the potential of breaking the snowiest storm for the winter season. >> you sound like a broken record. >> let's take a look at the graphics. the nation's capital, washington, d.c. louisville kentucky and philadelphia all have the potential to break their snowiest one-term snowfall event out of this particular storm. also something interesting to note just a matter of 300 miles, we have a separation of 50 degrees fahrenheit. that just gives you an indication how strong this particular cold front is separating the warm air mass to the south and the cool air to the north. this is the state of mississippi. we have over 5,000 flights canceled or delayed, so zain and everybody watching you'll want