We did the north end last Jan on a very windy weekend. I was glad to have a 4 season tent. The wind was blowing us sideways. However, the sites/shelters we stayed in had reasonable cover from the wind. So as mentioned, site selection is important.
Also, Skyline Drive was closed while we were in the park. So I recommend not using Skyline Drive for access to avoid having to deal with a closure.
The rangers were very helpful and were looking out for hikers that weekend, going out of their way to determine who was in the park and where they were parked.
Please fill out your permit as completely as possible to help the rangers out.