This is based on prior experience and knowledge. I have done this and I know how it works!
Some Needed Things:
- Money (lots)
- Patience (lots)
- Knowledge (lots)
- Snow (lots)
- Coldness (lots)
The picture is of my first time snow camping! It is not a good idea to leave your tent open while it snows.....
Step 1: Equipment
-Backpack (internal or large duffel bag, no wheels)
-Four season tent (if not sleeping in snow cave)
-Sleeping bag (at least 0 degrees)
-Sleeping bag liner
-Sleeping pad + reflective insulation
-Long Underwear (2)
-Outer Shell (Jacket + pants)
-Normal pants (2)
-Wool socks (5)
-Beanie, Hat, Balaclava
-Toiletries (toilet paper, toothbrush, toothpaste…)
Also matches (waterproof) are nice, along with a hand saw or ax, and some fire starting materials. A stove would be good too!
If you aren't going to go snow camping a lot, try to rent the stuff above, so that you don't spend a few thousand dollars... However, I do actually go snow camping a lot, so I actually spent the money!
If it is snowing hard, remember to stake the tent into the ground, and package everything in small plastic bags, so in case your backpack gets wet, your stuff isn't wet.... (you can also get a waterproof backpack!)