Only if it is too windy. They don't restrict it, you wouldn't want to be out there! Also there will be a sign about keeping the drapes closed at night as light may interfere with navigation. You can go out the side door in the dark, just make sure the light is out in the living room. It really is amazing up there.
ETA: Attached a movie showing when you wouldn't want to be out there!
IMG_4649.MOV