Most smokers dont realize how much they smell. I can smell a smoker from a pretty good distance so I know a deer can and I doubt the wind will make much difference unless it's 20+ mph. If you smoke in your vehicle or home the smoke gets into your clothes, hair, skin etc and stays there for a long time. Add humidity (moisture holds scent close to the ground) to this and deer will have you made so I wouldn't spend hundreds of dollars on scent-lock clothing, camo, cover scent and all the other gear that you must have and light a cig before hunting.