New Orleans police are asking for help in a missing persons case, that of a 16-year-old girl not seen since she left her Uptown house to go to yesterday's parades. Chabrina Parker left her home in the 4000-block of Annunciation around 1:00 p.m. Her mother told police she called around 5:35 to say she was on her way home. She never arrived. Chabrina Parker is 5'0" and weighs about 140 pounds. Anyone with information is asked to call the NOPD at 821-2222 or 658-6060.