Raspberries Done for 2013

We opened the high tunnel to let the raspberries go dormant for the winter.  It's supposed to get down into the single digits F over the next couple of days.  My plan is to try to keep the high tunnel open for most of the winter, but I'm not sure if that is a good idea or not.  My hope is that the high tunnel can handle being open when we get high wind storms during the winter. I don't want to close the high tunnel and have the temps popping up and triggering the raspberries to break their dormancy too early, or not be dormant enough and damaging the raspberries with freeze thaw.  Time will tell I guess.  One thing is for sure.  We won't have any greens out of the high tunnel this year.