Mardi Gras GalaDoug Hill, chief meteorologist at WJLA-TV and NewsChannel 8, returns as the master of ceremonies for the United Way of Calvert County's Mardi Gras celebration 7 p.m.-midnight Saturday. The guests at the formal gala will laissez les bon temps rouler ("let the good times roll") with a cocktail reception, authentic New Orleans cuisine and performers, costume and mask contests, a palace parade with floats and the crowning of the Mardi Gras king and queen. Show Place Arena, Upper Marlboro. Registration, $115. 410-286-0100.
Author LectureCollege of Southern Maryland professor and author Wayne Karlin shares audio and video clips in "Wandering Souls," his account of his experiences returning notebooks and personal papers to the family of a Vietnamese soldier who was killed in the Vietnam War in 1969. 7:30 p.m. tomorrow, College of Southern Maryland, Leonardtown Campus, Building A Auditorium, 22950 Hollywood Rd. $2. 301-934-7864, 301-870-3008, Ext. 7864.