Avalanches are typically the bane of mountain users of every sort. It’s crucial that skiers/snowboarders are able to identify early evidences of an avalanche, and that they understand what to expect whenever they take place. Misinterpreting circumstances can lead you luxury ski break transforming into a long hospital stay.
There are three specific types of avalanche; wind slab, powder and wet snow.
A powder avalanche can potentially be unbelievably damaging, however (thankfully) these are somewhat uncommon. Sometimes they can start off small, on inclines greater than 45, however they can accumulate in size in addition to strength as they trigger other volatile patches in its path. Powder avalanches can gain speeds as much as 250mph, occasionally becoming airborne and capable of uprooting trees or destroying small structures.
A powder avalanche can potentially be incredibly dangerous, however (luckily) these are rather uncommon. They can start out small, on slopes in excess of 45, but they can easily increase in size in addition to strength as they trigger other unstable areas in its path. Powder avalanches can gain speeds of up to 250mph, sometimes becoming airborne and competent of uprooting trees or destroying smaller properties.
When top snow melts, it could penetrate throughout the snow pack to deteriorate lower layers and therefore destroy binding to the mountain surface area. When the snow pack becomes wetter, it gains weight until it can’t support itself. People trapped within this form of avalanche are generally unable to survive, because of the decreased oxygen quantities in the snow and the density of compacting after the avalanche halts. Wet snow avalanches turn into a distinct problem throughout hot spring days, or on southern (Sun) facing ski slopes.
Wind-slab avalanches are generally (regrettably) most likely to affect slopes which are otherwise perfectly suited to skiers, on inclinations of approximately 28 and 45. However they’re less likely to form on specially steep inclines, they can. If they do, they can be particularly dangerous; triggered by something as imperceptible as a rise in temperature. Given that loading is the most usual trigger, wind slabs are likely to slide when it’s windy. As more snow is deposited on top of a possible wind slab, the weight of it will cause it to avalanche.
Wind is usually a key sign of how likely an avalanche is to occur during any period. The less wind, the more likely it is that the snow will be dispersed evenly. Even a average wind can cause snow to be deposited onto leeward terrain (the areas sheltered from the wind, typically ridge-tops or side slopes) forming “lee slopes”. The stronger the wind, the more hazardous these types of drifts are likely to turn out to be. With long stretches of sun in addition to extreme gusts of wind, large volumes of snow can form on top of lee slopes and become packed into a huge thick mass.
Whenever your on a skiing holiday in the Alps or in a private ski chalet, an avalanche survival kit is essential to keep you alive long enough to be found. It may seem like a scary thought but that chances are rather low of being caught in an avalanche but it is always best to be prepared.
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