That's why a good map is an essential part of your gear. You can see what would be impacted by a flood, or fire. You can look at prevailing winds and plot against a map. You can plan routes that avoid roads, trails, towns, etc. But without a good map and compass you're toast.fire, flood, drought, disease, fallout,
enemies, all can FORCE you to abandon your retreat, or prevent your ever GETTING there in the first place. Sure, a spot and cached gear is nice, but dont COUNT on either.