In the northern hemisphere, particularly at higher altitudes, fall is rapidly becoming winter; weather can be unpredictable, changing rapidly, so hikers should always be prepared for the worst case.
Hike Safe - Hiker Responsibility Code developed and endorsed by the USA White Mountain National Forest and New Hampshire Fish and Game department, is a set of simple guidelines that can help hikers to avoid becoming another rescue headline. Specifically applicable to mountain hikes, I have slightly modified the version below to emphasize that the rules make good sense for any terrain, all weather and all seasons.
The Hiker Responsibility Code reminds you that you are responsible for yourself, so be prepared;
With knowledge and gear. Become self-reliant by learning about the terrain, conditions, local weather, and your equipment before you start.
To leave your plans. Tell someone where you are going, the trails you are walking, when you'll return, and your emergency plans.
To stay together. Stay in touch as a group, and wait for the slowest person.
To turn back. Weather can change quickly (particularly in the mountains). Fatigue and unexpected conditions can also affect your hike. Know your limitations and when to postpone your hike. There will always be another day;
For emergencies. Even if you are headed out for just an hour, an injury, severe weather, or a wrong turn could become life threatening. Don't assume you'll be rescued; know how to rescue yourself.
To share the hiker code with others.
