(Wilmington)---For the second day in a row, Butler Countians started their morning commute having to deal with a heavy layer of fog. The National Weather Service issued a Dense Fog Advisory, which was set to expire at 10:00am Thursday morning. It's not known if fog played a role in an accident involving a school bus on East Miami River Road in Miami Township. The driver hit a fence and ended up with the bus resting on a tree in the front yard.