Due to weather conditions, trees have fallen onto power lines at Thompson Memorial Drive at Dunford Drive and in the 2200 block of Catawba Valley Drive. The power lines are across the roadways blocking both lanes of travel. AEP has been notified. There is no time frame for the roadways to be open, and there is no option to divert traffic. The Roanoke County Police Department is asking for people to avoid those areas and find alternate routes of travel.