Blackwater Falls typically gets 150 inches of snow during a normal winter and ski season.
"This storm generated almost one-third of our normal winter snowfall in less than 24 hours," Gilligan said, "and it isn't winter yet in the valley."
Power might be restored there this weekend.
Also hard-hit was Cathedral State Park, in neighboring Preston County, a 133-acre tract of virgin hemlock. Ranger Eric Risinger said trees have fallen atop all the buildings and blocked trails.
Cathedral is closed until some of the more than 24 inches of packed snow melts and the trees can be removed. Conventional plows have struggled to remove the snow, which was unusually wet and heavy.
The West Virginia National Guard had about 300 members on active duty Friday afternoon, but Sgt. Anna-Marie Ward said that number was expected to drop below 200 on Saturday.
Guard teams are focused on stream reconnaissance, she said, looking at debris areas and "possible choke points" in the areas that were hit hard with snow.