By Tom Dodge Sports Editor OPELOUSAS – The Vikings stormed out to a 52-7 halftime lead as Opelousas Catholic sealed the District 6-1A championship with a 60-21 win over the St. Edmund Blue Jays Thursday at Donald Gardner Stadium. OC (7-3, 5-0) grabbed an early lead as the Vikings moved 55 yards on six plays on the game’s opening possession – capped off with an 8-yard run by John Michael Jarrell…