Most weather apps base their numbers on if the snow was to land on the ground and stay how much would accumulate. They dont factor in if it melts before hitting the ground or melts when it hits the ground. Numbers get changed based on ground temperature and wind factors.

While I understand them, so many of them are such and eyesore and are annoying to walk by when their crowded. Always getting cut off by servers and guests; and some of them take up so much room that to walk by them it's single file. There's needs to be more regulation on them.