Seems like you've probably already left, but for anyone else looking to camp similarly:
Lots here have talked about site selection; pick one that's as best out of the wind as possible. But another hugely important thing to remember (that I didn't catch anyone else mentioning) in seriously windy conditions is to very thoroughly check for dead or even weakened-looking limbs and trees in the area. These things are always dangerous, but wind will bring them down no problem. Keep an eye out.
EDIT: And, of course, I missed it; OutandBack mentioned it. ;p
Thanks everyone. I skipped the tent and used my hammock for my first winter hang!
I had a great time and it wasn't bad at all. I would say the wind was maybe 15mph at best in the spots I camped. The terrain and sand dunes blocked almost all of it coming off the lake. Doors on my BMJ tarp, 20° UQ, slept 9hrs stright like I always do in the hammock. As usual, I saw many more people there in weather like this than in the spring or fall - I love those Michiganders!
Just a few photos on my iPhone which are hardly worth posting. Had gloves on most the time and quite frankly been there so many times I stopped taking photos. But I'll get them up soon.