March 27, 2014 12:50 pm Why Seasons Change As the days get longer and the temperatures begin to rise, Storm Team4 meteorologist Tom Kierein explains what causes seasons to change. Part of our spring weather special, “Tracking Spring.” Local 2:17 GW asks to students to move pro-Palestinian demonstration 3:01 “It's 100% different”: Community reflects on emergency curfew at National Harbor 2:25 Community, businesses mark first weekend of emergency curfew at National Harbor 1:27 Police search for suspect who vandalized Rockville synagogue sign 2:03 PNC Parkway Classic marks 40 years of racing in Virginia