I also took a three season tent with me and have camped in the winter often using a variety of three season tents. As long as you aren't on the ledges of a mountain top where the wind is going to go right through you, you'd probably be okay.
One thing I do to keep warm, is take Nalgene bottles to bed with me that have been filled with boiling water. Make sure the lid is on tight and put them in a sock. In the morning, you have water that will boil quickly because it's still warm and you can brush your teeth right away because the water has been sanitized. Then, when everyone is wondering how you got your coffee and oatmeal so quick, you can putter around the campsite.
Once the game is over, the king and the pawn go back in the same box.
I have one four season tent and a couple of three season tents.I've used both for winter camping.The only problem you might normally incounter using a three season tent in the winter is a heavy wet snow.Even this would only be a problem if you were not aware of what was going on.As long as you keep the snow from building up on the tent there won't be a problem.Most three season tents have a one piece fly that goes over the part that is ventilated.On one of mine the fly doesn'treach the ground,so I've got to bank a little snow around it.We will be camping in the trees and its quite protected from the wind.
Hiram just make sure the netting is in good shape so the "skeeters" won't get ya.
"It may be that your soul purpose in life is simply to serve as a warning to others" ~Steven Wright~I'm in my own little Lat/Lon
“Danse avec les Arbres”
Boiling water won't crack a Nalgene bottle? $8 mistake if it does.
If you want to try cross country skiing, start with a small country
Why not live life like it is your last day....instead of pretending to be a member of the Peter Pan Club and believing you will be around forever.
I've been doing the boiling water in Nalgene bottles trick for years. I've never had one split, break, or leak... and I tell you, I toss and turn at night.
Bring plastic bags with you. You can use them as vapor barriers on your feet and just slip them over your socks (some people can stand the plastic dirrectly on their feet) and put on a loose fitting pair of socks over that. Can make for toasie toes at night.
I think if you are camping on relatively flat terrain a sled works better then a back pack.Its hard to hike very far or to work very hard with a pack without working up a sweat which will leave your back soaking wet.This means when you get to the camp site you'll need to change clothes or dry the ones you're wearing.With a sled as long as you don't over excert yourself you can stay nice and dry.Dry means warm.
Hiking up a mt. requires the use of a pack and try as I might I've never been able to do it with out getting sweaty.So I always bring an extra hot chilly top to change into.The wet one can be dried quickly hanging on a branch in the wind.The great thing about poly-pro.