June 21, 2017 5:15 pm Backyard Weather in Mitchellville, Maryland Storm Team4’s Chief Meteorologist Doug Kammerer visits Mitchellville, Maryland, on the first official day of summer. Local 3:28 Social media and teens' mental health: A psychiatrist weighs in 1:41 DC-area police ramp up traffic enforcement in pedestrian safety campaign 3:05 ‘We need real liberation': George Washington University pro-Palestinian protest enters fifth day 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