karen.488 wrote:I have V. little understanding of avalanche risk whatsoever. I ski verbier. We've had plenty of fresh snow. I hear terms like poorly bonded etc. Can anyone tell me in general terms what the avalanche risk is on itinery runs. i.e. chassoure, gentianes and valon d'arby, particularly in spring. I don't have any avalanche equipment and avoid vallon d'arby because I've heard it's unsafe. I know the risk varies from day to day but does anyone know specifically know about these runs?
As already said avalanche risk is dependant on conditions so the season is not really a factor. I suppose you could say that on average its warmer in April than in January, but if you are out on the day in April when its -18 and windy then averages wont keep you warm
Its many years since I spent much time in Verbier but I tend to think of Vallon d'Arby as being 'different' from gentianes and chassoure. Col de Chassoure to Tortin, whilst an itinerary, usually has the appearance of a piste. When open, it is always busy and the snow is quickly compacted. Most of the exposure to avalanche is on the top section, either from the slope you are on or from the few couloirs above on Mont Gele.
Vallon d'Arby on the other hand is much more remote. Once into the valley you will be on or under a lee slope at sometime (regardless of where the wind has been coming from) and you
can be exposed until you get to Tzoumaz
Its a fairly steep sided valley which has claimed the lives of many over the years, quite a few tourers have been caught on the valley floor while skinning up.
Surely you can find some people to go out with in Verbier who can tell you a bit about snow conditions etc?
There are many books available and courses to go on.
Some good info here:
http://www.henrysavalanchetalk.com/