@foxweather: NATIONWIDE GROUND STOP: Air travel came to a standstill Friday afternoon as a nationwide ground stop lasted nearly five hours, leaving thousands of flights canceled or delayed. This dramatic flight tracker animation shows the staggering impact on air travel as planes gradually disappear from the map during the ground stop. Watch as the skies begin to clear across the country. #FoxWeather #Weather #Viral #Video #Airport #Travel #GroundStop