WINCHESTER — The electricity was in the air in the Umpqua Community College gym Saturday as the Riverhawks hosted Mt. Hood, the Northwest Athletic Association of Community Colleges’ No. 4-ranked team, in a Southern Region match. The Saints, the defending NWAACC champions, swept Umpqua by scores of 25-19, 26-24 and 26-24. Mt. Hood was led by Tori Kemper, who finished with 13 kills to go along with seven digs. On Friday, the Riverhawks (13-10, 1-1 South) knocked off Clackamas, winning 25-20, 24-26, 25-16, 25-17. “Umpqua has a great team, and we knew it was going to be a battle coming …