Avalanche Risk Mitigation

The Swiss Institute for Snow & Avalanche Research (SLF) recorded 27 deaths from Avalanches in the winter season 2021/22 up to the end of March, double the number for the previous year and the moving average over the last 20 years. All the victims were winter sports enthusiasts on unsecured terrain – 11 back country and 16 off-piste – and a quarter were in the Verbier area.

Why do skiers and snowboarders get killed by avalanches, I have often been asked. Can’t they just ski out of the path of the snow slide?

Simply put, it is almost impossible to out-run an avalanche. A skier normally travels around 30km/hr, whilst an avalanche can exceed 100km/hr, faster than all but the fastest skier can travel in perfect conditions. Additionally a skier may not be aware that an avalanche has formed until it is upon them, as they can begin with little warning and an almost imperceptible change in the condition of the snow. Then, very rapidly, the force of the product of the mass and acceleration of the slab of snow is capable of knocking over anything in its way.

Just like a flood of water, it is possible to “float” on an avalanche by wearing and deploying an avalanche airbag. Without one, however, you will almost certainly be swept under. It is sometimes possible to “swim” through an avalanche, but swimming in an avalanche is not a skill the average victim will have.

An avalanche typically contains many hundreds or thousands of cubic metres of snow, and the snow consistency is often heavy once it settles. One cubic metre can weigh 500kg, so if you are under an avalanche that has settled you cannot normally lift yourself out of the snow. You would need to dig your way out, and that could well be through a substantial layer of snow. It may not even be clear which way is up. Your best chance of survival is that someone else is able to dig you out – assuming they know where to dig.

Even if a skier is conscious and knows which way is up when they have found themselves under an avalanche, the snow will likely encase them such that they are unable to move. The air pocket around their face will be unable to sustain them for more than a short period, perhaps a few minutes. 85% of avalanche deaths are due to asphyxiation.

The impact of the avalanche may well have made the skier unconscious or caused serious injury. In 15% of avalanche fatalities trauma is a factor. Avalanches often include debris such as trees and rocks, and in turn may sweep a skier on to rocks or other hard objects.

If a victim of an avalanche is not killed by the impact and is dug out within 5 minutes there is a 90% chance of survival. If they have been able to create a large enough air pocket a survival time of an hour is possible but is rare.

I have talked in an earlier article about how important it is to have some form of beacon, such as a RECCO reflector, in ski gear to improve the chances of being found. If you do survive an avalanche, it is likely because of some one else’s preparedness.


Share Button

End of Ski Season review

Phew! What a season it has been for skiing and snowboarding. I was fortunate to get some good skiing in before Christmas, but in general it has been a dismal season for everyone.

The Swiss lift operators association (Seilbahnen Schweiz/Remontées Mécaniques Suisses) has published its analysis of the season up until the end of March – which for all but a handful of resorts is end of season.

The lift operators report a grim picture. By the end of March, lift usage and turnover in Switzerland had fallen by 24% in total, compared to the 2018/19 winter season. Large resorts, dependent on international visitors, have suffered most, but the closure of bars and restaurants has also deterred local winter sports enthusiasts. Additionally, ski camps and club and business trips have not taken place. Ski lifts in the Prealps and in areas close to towns, which cater more for day tourists, have not done quite as badly. Ticino has actually done quite well compared to 2018/19, but that was a season where the canton suffered from a lack of adequate snow – something that cannot be said of this season, where the snow conditions remain very good in those resorts still open.

On the whole comparison with the 2018/19 season is more meaningful than for 2019/20, because Covid-19 had an impact on the latter part of the 2019/20 season. It was hard to forecast a year ago we would be where we are now, and it is only with some optimism that we can look forward to next year being without some restrictions. None the less, overseas visitors are booking in advance for next season like never before, with many winter tour operators reporting bumper bookings.

The long-term impact on the lift operators is hard to gauge. Despite running at a considerable loss this season, lift operators have seen themselves as providing a public service and largely remained open. If the ski lifts had closed, mountain regions would have faced a shutdown of even more tourist activities, resulting in greater economic damage than has anyway been inflicted. Government support, the lift operators association says, is needed to avoid systemic damage to tourism.

The impact on the whole winter sports infrastructure is devastating. Some businesses will not return, others will cancel plans for expansion or investment. Many resorts were already worried about the long-term impact of climate change, and Covid-19 is hardly likely to positively impact their thinking. Additionally, with ski resorts being amongst the Covid-19 hotspots at the start of the pandemic, the image of winter sports has suffered.

I think the ski industry will recover strongly, although the level of growth will likely be lower than in previous years. From a sustainability perspective and in light of the impact of climate change, that is probably not a bad thing.

Share Button

Ski Movies – Part 2

Streif- One Hello of a Ride (2014)

This film is about the famous annual Hahnenkamm race, the toughest on the FIS downhill circuit. It takes place in Kitzbühel, Austria. You can see the movie at the Red Bull web site, and it’s probably the best ski documentary out there.

Frozen (2010)

No, not that Frozen. This one is about three skiers trapped on a ski lift in Snowbasin, Utah, after the resort has closed for the night. Enough to put you off that crazy run to catch the last chairlift before the mountain closes.

Low budget it may be, but it is definitely watchable and pretty scary.

Eddie the Eagle (2016)

If you can take clichés and sentimentality, you will probably like this story of Britain’s most famous ski jumper.

Fly like an eagle

SKI School (1990)/Ski School 2 (1994)

Judge for yourself whether the antics of a bunch of ski instructors, mainly filmed in Whistler, is to your taste. However the first of the two does enjoy something of a cult following amongst people of a certain age.

Extreme Ops (2002)

In what is probably not Rupert Graves’s finest outing, a film crew and three snowboarders go on a trip to a remote part of the Austrian Alps to film some stunts. Unbeknown to them they stumble across the hideout of a thuggish Serbian war criminal. What could possibly go wrong? Although the ski scenes are staged as being on the former Yugoslavian border, filming seems to have taken place at various locations, including Verbier.

More winter sports movies to come…

Share Button

Skiing Injury Insurance Payouts

#Verbier

The Swiss National Accident Insurance Fund (Suva) has recently provided an analysis of the extent and costs of winter sports accidents from an insurers perspective.

Typically around 90,000 winter sports accidents are reported every year in Switzerland. For the last full year for which there is data, unsurprisingly downhill skiing comes top of the list of incidents with a total of 52,320. For other winter sports the figures are: snowboarding: 11,060, tobogganing: 6460, cross-country skiing : 5440, ice hockey: 5010, skating and figure skating: 3780, and ski touring: 970.

The cost of these accidents in terms of insurance payments for skiing alone comes out at 610 million Swiss francs (snowboarding: SFr 74 million). The breakdown for skiers by seriousness of injury is: light injuries: SFr 100 million, moderately serious injuries: SFr 182 million, serious injuries: SFr 235 million, disability: SFr 49 million and death: SFr 44 million.

The sums are some 70% higher than they were fifteen years. The increase is reckoned by Suva to be caused by higher performance equipment, the advent of ski carving, the preparation of slopes, artificial snow, and the increasing average age of skiers – with the most affected category being that of 40-59 years old.

For alpine skiing, the most commonly affected body parts are the knee: 30.9% (snowboarding: 15.2%), shoulder and upper arm: 24.1% (snowboarding: 23.4%), lower legs and ankles: 13.8% (snowboarding: 13.1%), trunk: 13.7% (snowboarding: 19%), wrist, hand, fingers: 11.8 % (snowboarding: 13, 1%).
Suva estimates the average cost of a broken leg at SFr 22,500 in total.

Share Button