The Scarp is a Tarptent which was designed to handle snow, and it does so well. Note that the extra poles are needed.

I got the solid inner (with some mesh vents) for winter use with my Scarp 2. I use the all mesh inner for summer. If you bring the crossing poles or some extra guylines, the mesh inner can be set up on its own. (See the Scarp 2 page.) With the poles, this is a little bit "fiddly" to secure the poles in place at the ends. It's not straightforward, and requires a little tent pitching creativity. Also, you can't simply throw the fly over top like with many double wall tents. You'd have to clip the mesh inner back into the fly.