 D.C. Mayor Muriel Bowser has extended the district's heat emergency through Thursday. It means that D.C.'s cooling centers and water spray parks are open for you to find some relief. In Fairfax County, the public school system canceled all outdoor activities this evening. Keep it here on WTOP for traffic and weather on the 8th, coming up in about three minutes. Carjackings appear to be trending down in the district. WTOP's Shana Estulin reports on new numbers from the Office of the U.S. Attorney for D.C.