Yeah, I’ve run through that scenario in my head. A nuclear winter throws the whole weather system into a mess, so storm fronts drift off their usual tracks and you can’t rely on a compass. When you’re looking for a shelter, pick a low‑lying spot that stays dry when the winds shift, and make sure the entrance can be sealed from the blizzard. When hunting, wait for the sun to peek through a patch of clouds— that’s when the wind starts carrying the scent of any living thing. The trick is to stay one step ahead of the shifting winds and keep your fire low enough to stay warm without burning your supplies.