Sorry for the delay in getting back to you. I kept forgetting to grab my cell when I went down to the coop. Here are some pics.
Well I can see how snow accumulation would be a problem. I really can't see how you'd clear it reliably as there's no way for you to get in there or reach the center with the netting in place.
This is how I have my netting set up on the side with a lower fence, like yours - the coop is my "post with tennis balls" and then there's 7' U-posts ringing the outside with tension wire strung around the top perimeter, to allow the netting to rest at around 6' so I can fit inside the run. We don't have much snowfall but it can still accumulate pretty quickly... to clear it I take a broom, go inside the run and whack the netting, and it falls through.