Shelly,
I make humid hides for my torts and turtles from rubbermaid or tupperware depending on the size of your animal. Choose your container and essentially turn it upside down with it's lid on. Using a saw or a blade, cut an entry hole on one side of the container. Place the container into your enclosure and place enough substrate on the ground to make it comfortable for the tort. The goal is to have substrate that will hold water in a hide that will not evaporate too quickly. You won't want it wet in there but you want the humidity to remain high. With all my torts I place a heat source near by so that the hide stays in the 70-75 range (given that you are in New York).
You don't want it to get cold and damp in there.
The rest of the enclosure I provide a hot spot basking area with UV and a dry option. The tort will decide where to go and when.
Richard Fife at Riparian farms has had very good results raising his CB babies using this method. He provides this humid hide for both tropical and arid animals.
Good luck.
Paul