We had the same ridiculous december snows in our part of NY. My hoop coop stood up to it just fine. I knocked some of the worst of it off, but mostly figured it was extra insulation for the quack waddles. Ours is built of old oak flooring and 2x4's for the bottom with half of a cattle pannel making the "hoop" at the top. Meant I only had to buy ONE cattle pannel instead of two. And we had the wood flooring sitting around. I had it covered with clear heavy duty vapor barrier (also leftover from rebuilding house).

the roosts across the back end keep the whole structure pretty rigid. but, we move it. If it was stationary it would be perfectly stable without the roosts.
the roosts across the back end keep the whole structure pretty rigid. but, we move it. If it was stationary it would be perfectly stable without the roosts.