Ice Climbers & Avalanches

It’s Time to Take this risk more seriously

By Grant Statham

Every winter, ice climbers are caught—and sometimes killed—by avalanches. Even small avalanches can be deadly when they get funneled into the narrow gullies where ice climbs form. So understanding the avalanche conditions and carrying rescue gear when climbing is essential for many climbs.

Yet despite this reality, climbers have been slow to embrace basic avalanche safety practices, even when they always use avalanche gear when backcountry skiing. This contradiction makes no sense, and it’s high time for a paradigm shift.

Once you’ve determined if your ice route is formed, your next move should be to figure out whether it’s threatened by avalanches. Any steep snow slopes on the approach, the route, above the route, or on the descent have the potential to release an avalanche.

If your route is threatened by avalanches, then you need to know more. Is the climb located in a gully with avalanche start zones overhead? Will you be climbing through snow slopes above cliffs? How about the approach—will you be walking under avalanche paths or kicking steps up a 40° slope to reach the base? How hard is the route—can you climb fast or will you be exposed to avalanches for hours? What does the local avalanche forecast say? You need to answer all of these questions before going climbing.

AVALANCHE RISK

Avalanche risk in ice climbing has three main ingredients: 1) enough snow to produce an avalanche, 2) avalanche-prone terrain, and 3) climbers exposed to this hazard. Remove any one of these elements and you’ve eliminated the avalanche risk.

But while eliminating avalanche risk ensures safety, it won’t get you up the routes on your hit list that are subject to avalanche hazard. For this, you’ll need to manage the risk by assessing its individual elements and understanding how they affect you and your partner.

SNOW

The best indicator of unstable snow is avalanche activity. Both slab avalanches and sluffs are threats to ice climbers, because it doesn’t take much to knock you off your front points. If avalanches are occurring near your route, then it’s safe to assume the snow on your route is also unstable. Here are the big three factors:

(1) Precipitation: new snow and especially rain can overload the snowpack

(2) Wind can move snow at 10 times the snowfall rate and create locally deep slabs

(3) Temperature: warming trends, inversions, and temps over 0°C (32°F) produce avalanches

TERRAIN

Minimize your exposure by positioning belays out of avalanche terrain or in protected locations, moving together when you can, moving one at a time when necessary, belaying across exposed slopes, and spending no unnecessary time exposed to avalanches. These are the strategies that keep experienced climbers alive. Here are the terrain basics to keep front of mind:

(1) Slope angle: the prime angle for slab avalanches is 30° to 45°

(2) Aspect: there are big differences between routes in the shade and in the sun

(3) Elevation: snow depth increases with elevation, so be aware of conditions overhead

(4) Terrain traps: ice climbs are often in or above terrain features that increase consequences (cliffs, gullies, creeks, etc.)

PEOPLE

For risk to exist, something must be “at risk,” and in climbing this is people, deliberately exposing themselves to avalanche hazard. All people are fallible, and human factors are well-recognized as a major contributor to avalanche accidents. Here are some considerations:

(1) Partners: climb with people you trust and who share your values around risk

(2) Decision-making: trust your instincts and bail if it doesn’t feel right

(3) Trophy hunting: don’t obsess over one climb; have options and let the conditions determine your route

(4) Group size and speed: keep your team small and move efficiently

PUBLIC AVALANCHE FORECASTS

An excellent source of information on local conditions is the public avalanche forecast, found at avalanche.ca in Canada and avalanche.org in the USA. Locals watch the forecast regularly to stay abreast of conditions; start checking it early to get a sense of the snowpack.

Don’t climb in avalanche terrain unless the danger rating is Low or Moderate. When it’s Considerable, avalanches are likely, so now you need to know specific details about the route and what might trigger an avalanche there. If you don’t understand this, then don’t climb there. High and Extreme are obvious—stay out of avalanche terrain.

NATURAL RELEASES AND CLIMBER TRIGGERED AVALANCHES

Many ice climbs form directly beneath large avalanche slopes. To climb these routes, you need to determine whether a natural avalanche will release while you’re there. This is difficult, but the avalanche forecast, weather forecast, and ridge-top weather stations (accessible online) will provide some of the information you need. Always remember that snow depth, wind effect, and air temperature will be much different high above your climb, so don’t be lulled into complacency by snow conditions near your route.

Climbing steep snow is usually part of ice climbing, and this can lead to triggering a slope yourself. Whenever possible, go around snow slopes or cross them as high as you can to reduce the amount of snow above you. If you have to climb directly up the middle of a big slope, the best tactic is to evaluate smaller, safer slopes of similar character to get sense of conditions. Then consider spacing out, going one at a time, or belaying, even if the slope is small but the consequences are catastrophic.

CARRY AVALANCHE RESCUE GEAR

If you’re climbing and exposed to avalanche risk, then you should use avalanche rescue gear. If someone gets buried, you have about ten minutes to find them, dig them out, and clear their airway before they asphyxiate. Each member of the team should carry an avalanche transceiver, probe, and shovel. Nobody likes extra weight, so be thoughtful about when and where you carry the gear—plan it out like you plan your rack. Do you only need it for the approach or for the whole route? Maybe take one shovel up the route instead of two. What about the descent?

Even if you’re climbing a route where you think an avalanche would be unsurvivable, somebody will still want you back, which means SAR teams will be searching for you. Wearing a transceiver and using clothing equipped with the Recco system does everyone a favor by making you searchable.

RISK AND REWARD

Good avalanche skills are part of being a solid alpinist and waterfall ice climber. While climbing a great route feels awesome, climbing it in good style and doing everything you can to reduce your risk feels even better. Adding risk without additional benefit is pointless, so learn about avalanches, carry the gear, and respond to the ever-changing conditions.

ABOUT THE AUTHOR: Grant Statham is an IFMGA mountain guide and avalanche forecaster based in Canmore, Alberta. He works with Parks Canada’s search and rescue and avalanche safety programs in Banff, Yoho, and Kootenay national parks.

GO DEEPER: The following webinar expands on the topics discussed above. This session was hosted by Avalanche Canada and Grant Statham and presented by Canadian guide Sarah Hueniken on November 4, 2020.

THE SHARP END: A CREVASSE FALL IN THE TETONS!

Tyler Willis and a friend were descending from a successful ascent of Mt. Owen in Grand Teton National Park. It was late in the day when they reached the Teton Glacier, which they had crossed without a problem early that morning. Just a few steps later, Tyler plunged into a hidden crevasse, an extremely rare accident for the Tetons. By the time climbers pulled him to the surface, he was hypothermic, and it wasn't until the next day that rangers could helicopter him to safety. Hear all about it in Episode 58 of the Sharp End (link below).

An accident like this illustrates the importance of recognizing and treating the symptoms of hypothermia, which may develop even on a sunny day in August. A useful reference for climbers and clinicians alike is the Wilderness Medical Society’s updated guidelines assessment and treatment of hypothermia patients. The article and several downloadable field guides (like the one shown above) are available at this link.

AVOID INJURIES DURING WINTER TRAINING

Dr. Volker Schöffl is one of the world’s foremost authorities on climbing injuries. The German professor and physician is co-author of One Move Too Many: How to Understand the Injuries and Overuse Syndromes of Rock Climbing (Sharp End Publishing, 2016). This year, he and co-authors Dicki Korb and Patrick Matros released a new work describing complementary training to avoid injuries. The 94-page book is packed with tips and specific exercises, and it’s available as a free download! We decided to ask Schöffl for some training advice for Prescription readers.

We’re headed into winter and lots more indoor climbing. What are the most important things climbers can do to prevent injuries during the months of indoor training?

Do not overdo it early on, and build up strength gradually through the winter. Motivation is high, as everyone wants to be better next season. Don’t forget, you have to endure a couple months of training, and you should pace yourself. Increase the load gradually and this will help you to avoid overuse injuries in November.

What are the most common areas of injury for climbers heading indoors? 

This really depends on the type of training you are doing. In pure strength training, simple overload leads to finger stress and tenosynovitis (inflammation of the tendon sheath). In indoor bouldering, especially with dynamic problems, injuries from falls onto the lower extremity are most common. Overuse and over training in indoor climbing also affects the shoulders and elbows.

Any recommendations for avoiding these common injuries?

A proper warm-up will help to reduce both injury incidence and severity. Stretching itself is not ideal as a warm-up, as it reduces muscle tension (stretching is more appropriate for cool-down after a session). Warm-up should consist of some general exercise and include finger specific exercises (e.g., therapy putty, softball squeezes, or plain finger movements). You can find some examples in One Move Too Many. Climbers should also focus on adjunct compensatory training (ACT)—exercises that counteract the specific stressors of climbing. We just released our ACT program, which is a free pdf booklet, accessible through www.act.clinic. After this general warm-up phase continue into some easy climbing and gradually increase stress/difficulty to a peak approximately 30 minutes into the climbing session.

Can you tell us more about ACT and its importance for overall climbing performance?

Climbing, as with many other sports, stresses the body in uniform patterns, leading to strength in certain muscle groups and to neglect in others. These imbalances lead to posture deficiencies and poor movement patterns. ACT focuses on training the neglected muscle slings (muscle, fascia, and ligaments) and innervation patterns within their specific range of motion, building up posture and core strength as well as balancing the athletic build of the body. In order to withstand climbing specific training over time and to prevent associated injuries, the antagonists and neglected muscle groups must be addressed. This is where ACT comes into play.

MEET THE RESCUERS

Doug McCall, President of Mountain Rescue Association (MRA) and member of Seattle Mountain Rescue

Years volunteering with your team: 12

Home Crag:  Exit 38, Deception Crags/Far Side Wall

Favorite type of climbing: Single-pitch sport. The crags near me offer a wide range of grades that allow me to climb with a wide variety of people. I love bringing new people to the crag and letting them try outdoor climbing for the first time. I also love challenging myself with friends who climb above my abilities.

How did you first become interested in search and rescue?

I was a volunteer firefighter at our local department when one of the other volunteers began talking about climbing and then later about Seattle Mountain Rescue (SMR). He had been a member of SMR for about 15 to 20 years and recommended that I apply. I was excited about the opportunity to combine my passion for the outdoors with the medical skills I had learned through the fire department. I was accepted into SMR in February 2008.

Why do you think accident reporting is important?

Learning from others’ mistakes is a powerful way that humans learn from one another. While it is easy to “armchair quarterback” some scenarios, you never really know what you might do when presented with a sudden experience. Knowing what others did or didn’t do helps to frame a thought process that may help you or your climbing partner down the road.

Personal scariest “close call”?

Early in my alpine career, my climbing partner, mentor, and cousin, Doug Walker, and I were caught in a slab avalanche that swept me down a 600-foot slope and then off a 30-foot cliff. I somehow survived. The worst injury was a severe fracture around my left eye that I likely sustained from a glancing blow to a rock. While we were able to self-rescue, I have since felt compelled to try to help others during their bad day in the mountains.

Personal safety tip?

I wear a helmet when climbing. While my doctors say that I have a very thick skull, I’d rather never have to test that again. Helmets are easy and offer good protection from an unexpected slip or rock fall. Also, I always tie knots at the ends of my rope when on rappel. I’ve been on numerous recoveries where a knot would have been the difference between life and death.

What would you say to people interested in learning more about search and rescue?

I’d encourage people to find a local MRA team or a SAR team and learn more about how to become a member. MRA teams train constantly and test each other to ensure that every team can safely effect rescues in all sorts of terrain and conditions. We also operate with a safety mindset that carries over into our personal climbing.

What is your favorite thing to do when you are not climbing?

Spend time with my family. My family has been very supportive and patient with all my time spent climbing and responding to rescues. While we tend to do a lot of outdoor activities together, they have also taught me to enjoy a number of other activities. Being with family and sharing experiences with them have been the greatest joys of my life.

Share Your Story: If you’ve been involved in a climbing accident or rescue, consider sharing the lessons learned with other climbers. Let’s work together to reduce the number of accidents. Contact us at [email protected].

The monthly Accidents Bulletin is supported by adidas Outdoor and the members of the American Alpine Club.