text:  Airports are jam-packed to the start of Independence Day holiday travel, with 3 million passengers expected to flood airports today and other 60 million Americans expected to take their vacation by car. The wild card for travel, both in the air and on the road, is the weather. Are we watching the tornado from right there? Drivers in Jacksonville spotting a twister as it flipped a truck. Oh my gosh, oh my gosh. A confirmed tornado in Melbourne, Florida destroyed multiple homes. ABC's Alex Perez.