I think of December as Avalanche safety month and I will try and drop some backcountry basics here on the site and explain some of the tools I use daily in assessing snow safety. Learning how to read the mountains is a never-ending quest. You will never know it all but you owe it to yourself and your riding partners to keep learning and listening. I will not get into the fine details of avalanche protocol. You first need to get yourself in some avalanche safety class. Click here to find your closest coarse.
5 red Flags.
The more time I spend in the mountains the more I find myself using the 5 red flags. Keep these on the top your brain every time you go out. They are not rocket science and are very easy to read.
New Snow
90% of Human triggered Avalanches happen during or with in 24 hours after a storm. I give this the utmost respect. So many times the first day out after a storm will be super sensitive. I generally do not start a full evaluation of a snow pack until 24 hours after a storm. I treat all snow pack with in 24 hours after a storm as high to extreme danger. Follow this rule and eliminate your risk of getting caught in an Avalanche by 90%
Patience is hard when you have not made a turn for a week and it is finally clear. It is a good time to ride a resort.
Signs of Recent Avalanches
If you go out and see signs of natural avalanches this is a sign that slopes are sliding with out people getting on them. They should be taken very serious, especially if the avalanche activity has happened on a similar elevation and aspect of a slope you want to ride.
Collapsing or Cracking in the Snowpack
With collapsing you will feel or hear a whomping sound. This means a layer has broken but the slope you are on is to flat to slide. If it occurred on a steeper slope it would have resulted in a slide. With cracking you will see small shooting cracks as you approach a slope or even as you are skinning up a face. Often times collapsing or cracking will send me riding back down the boot pack or skin track.
Rapid Temperature Rise
This is not based on a certain degree of temperature. This is especially dangerous if it the first warm day in awhile or is the warmest it has been in a while.
Strong winds, Blowing and Drifting Snow
If the wind is strong enough to transport snow then the avalanche conditions can change from stable to dangerous with out any new snow.
Snow making…Mother Nature style. Also referred to as “flagging”
Click here to see the Five Red Flags video by TGR.
The internet is an awesome tool to get information before heading out. The night before heading out I will check the local Avalanche site for any reports of Avalanches and always check the daily Avalanche forecast in the morning before heading out.
Go to sites for me. The TGR Snowlab, Avalanche.org




Working my way through Tremper’s excellent book, but I notice most of the examples given are for North America. Is there some good general info on European terrain, snowpack, weather patterns and trends? Not that the wisdom given in the book doesn’t apply, but some background info on the Alps would be great to have.
Comment by Zach December 11, 2009 @ 6:12 am
Zach, i can recommend this book: “PowderGuide: Managing Avalanche Risk” It’s a very useful book and i think it is more focused on the European situation so it might suit you.
http://www.amazon.com/PowderGuide-Managing-Avalanche-Tobias-Kurzeder/dp/0972482733
Comment by Willem December 11, 2009 @ 9:18 am
Great tips! Also as the above comment states, Bruce Tempers Avalanche books are an excellent read.
Comment by Chase December 11, 2009 @ 10:37 am
Jeremy – I realize you are a very intelligent backcountry boarder, but which of the rules did you apply a few days ago when Tahoe got pounded with snow and you went in the backcountry? … Rule #6 – Make sure you remember Rule#1 ?
Comment by Gene December 11, 2009 @ 2:52 pm
Gene, you clearly have missed the point and as Jeremy said, get out and take an avy course, get educated. Consider the 5 red flags as obvious warning signs, but use training and skills built from your experience to make informed decisions. Terrain selection is key, would you go out an ride the biggest, baddest line right after a huge snow dump? Likely no, but perhaps it would be safe to stick to mellower terrain, glades for instance.
Jeremy, I would just like to say that you are doing a great job as an ambassador of freeriding. Your writing is stellar and for you to take the time to point out some basic fundamentals and you hit it right on the button “You first need to get yourself in some avalanche safety class.” Kudos for not just getting us stoked to get out there exploring but for reminding us all of the importance of training.
Avalanches kill, education and practice is key. Is your life not worth a few hours of your time taking a course and some regular practice to stay sharp? Everyone should ask that question before they even think of setting foot in avy terrain.
Comment by Jamesy December 12, 2009 @ 4:13 am
Thank you for that Jeremy. Keep boarding.
Comment by Ozzy December 12, 2009 @ 7:17 pm
Thanks for the tips man. We were out riding in tahoe donner sunriae bowl and we heard some nat avys and cracking with this current storm we are getting. We stuck to mellow glades and had a blast. I am gonna start following those 5 rules every day this wunter. I really respect everything u do and hope to c you soon. Shoot me an email sometime if wanna ride this winter.
Jgriffin1118@gmail.com
stay safe out there bro-
jim in truckee
Comment by Jim December 13, 2009 @ 12:15 am
Some more links to books.
Trempers book, Staying Alive in Avalanche Terrain is the new bible. It is very detailed and for more advanced readers.
ttp://www.amazon.com/Staying-Alive-Avalanche-Terrain-Tremper/dp/1594850844/ref=sr_1_1?ie=UTF8&s=books&qid=1260812464&sr=1-1
Snow Sense
This is a basic handbook and a great starting point. I still read it to stay up to speed with the basics. Simple is good.
http://www.amazon.com/Snow-Sense-Evaluating-Avalanche-Hazard/dp/0964399407/ref=pd_sim_b_2
Comment by admin-jeremyjones December 14, 2009 @ 11:48 am
Gene,
Jamsey did a good job answering this but since you commented on the other day I will give you my thoughts on the day because it is a great point you bring up. Terrain selection is key to any day in the backcountry and something I hope to go over here. Often times I ride in the backcountry during storms if I have a safe route to both skin up and ride down.
The “new snow” Red Flag was in effect before I even left for the day. After some discussion the night before with my ridding partners we decided to skin up the groomed run at Sugar Bowl. We rode a 100 foot 38 degree face that went back to the groomer and then rode an ungroomed 30 dgree ski run. We then looked at a 200 foot steep face but turned back because the wind had came up a little and was loading the face (Red Flag) and the outrun had rocks in it. We did the same line three times.
Red Flags are guides not rules. Some of the biggest slides I have ever seen happened on days there was no obvious red flags. There was other indicators though. This is why courses, books and spending time in the mountains experts is so important. It is never cut and dry. See my post from when last winter http://jeremyjones.net/2009/01/jackson-hole-gets-attacked-by-avalanches/
The layer was so bad that the Jackson Hole ski patrol’s protocol that they have been been evolving for 40 years was thrown out the window. 40 year island of safety’s were no longer safe.
Thanks for the feedback…let me know if you have ay other questions.
Jeremy
Comment by admin-jeremyjones December 14, 2009 @ 12:03 pm
Jamesy – I agree that the 5 points are starting points. Jeremy is ABSOLUTELY being an ambassador to the sport unlike any other professional rider I have known. Most fans of the professional riders skills see what they do in the movies and try to duplicate the efforts without considering the risks. Even though Jeremy didn’t write about this backcountry day on his blog, but used TWitter I hoped that Jeremy would eloborate on the terrain he rode that day to assist further with his post. My comment on the rule #6 might have been a bit much, but didn’t want to write a long paragraph over what I had observed and what could have been learned from it. The majority of readers on his blog are more than the movie watcher, but linking the two incidents was very important for the overall discussion…
Jeremy – Thanks for your input on the terrain you rode that day. I know from riding that area from a few years ago the terrain and most important steepness (degree) can vary greatly. You are a true inspiration to the fast paced sport of Backcountry Riding and that by you observing the large increase of riders and skiers in the backcountry. Adding this blog is of great importance along with the work being done by the TGR Crew.
… I have read multiple books on avalanche terrain along with critical items to be aware of while out in terrain… While I live on the East Coast (glades riding) and don’t ride nearly as much open terrain than the West Coast (exception is Mount Washington) I felt it was important to get a full understanding of the environment I would encounter while making my trips out West…
My downfall is the lack of courses taken and hope to get them under my belt sooner than later… EMS offers a great AIARE program in NH.
Books I have read:
Staying Aline in Avalanche Terrain – Bruce Tremper
The Avalanche Handbook – David McClung & Peter Schaearer
Hypothermia Frostbite and others Cold Injuries – Godron Giesbrecht & Wilkerson
Altitude Illness: Prevention & Treatment Stephen Bezruchka
Backcountry Snowboarding – Christopher Van Tilburg
Movie I watched regarding avalanche terrain:
The Fine Line
Question though…
Would signing up for a course as a single be beneficial? My friends have their AIARE Level 1 Certification and have chosen to bypass a refresher course…
Thank you,
Comment by Gene December 14, 2009 @ 2:41 pm
Gene,
Never hesitate to call out any questions you have. Taking a course by yourself is a good call. You do not need your riding partners to be with you to get the benefits of a course. My first courses were all taken solo. I hope to do a wilderness first aid this summer and will most likely be solo.
Love the passion….The Presidential range kicks ass!
jj
Comment by admin-jeremyjones December 14, 2009 @ 11:44 pm
All class Jeremy, really impressed with you taking the time with the original post (and now part 2) but further explanation into your decision making on that day Gene questioned.
Gene, hope you didn’t think I was jumping all over you, just figured I’d add to the discussion, I think an avy course for you or anyone (including refreshers and practice for those who have taken one) are always an excellent idea.
Comment by Jamesy December 15, 2009 @ 8:41 pm
Thank you so much for all the info & photos you so generously share with us! I’m just getting started with the backcountry freeriding thing. Your site & the Alaska Tailgate site have opened my eyes to a whole new world. In your second post on this subject, in looking at the pics of the faces you had to pass up, what were the reasons? To my relative novice eyes, some looked like any little disturbance would trigger a release, but I’m guessing it was more than that?
As Baker becomes more & more crowded the out-of-bounds terraine is calling like the sirens of Titan. Took my first avy course in May (solo), & got my Tracker a couple weeks ago, (still unused – we’re on a temperature roller coaster ride out here & the danger level is high.) My second question here is, do any women freeride? I never see women in the films, pics, videos, what’s up with that? I only ask here because you seem to really get around, not pointing any fingers. (One woman said you can sum it up in one word, “kids”, but not all of us went down that road.) Any thoughts?
Comment by Cheri December 16, 2009 @ 12:02 pm
Please forget my first question, clearly much to complex to be answered here. Guess I’ll peruse that intersting list of books you so thoughtfully provided
Comment by Cheri December 16, 2009 @ 9:40 pm
2 huge names come to mind when you mention woman freeriders for me Cheri, Victoria Jealouse and Annie Boulanger.
I’m touring in the Baker backcountry (and sidecountry) all the time, perhaps we can hook up for some turns at some point. But first practice up with that beacon!
Comment by Jamesy December 18, 2009 @ 11:53 am
Thanks & I’m down, looks like it might cool off by Mon or Tues.
c.l.bairdbrains@comcast.net
Comment by Cheri December 18, 2009 @ 9:11 pm
thank you so much…
Comment by kırlangıç bayrak December 22, 2009 @ 5:12 am
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