 News from the Radio Oklahoma News Network. I'm Dale Forbis. The University of Oklahoma now officially a member of the Southeastern Conference. OU is marking the occasion with a 24-hour celebration that started with fireworks last night at midnight and ends this evening with a party in the Palace at Memorial Stadium for all OU fans. The SEC Network will also be broadcasting live today. The National Weather Service issuing a heat advisory for most of the state lasts through 9 p.m. tonight.