I’ve been laid up in bed all weekend but conditions have not evolved much, apart from being very icy in the mornings.
Here is an avalanche that happened on Wednesday between 11-15h on the popular Aup de Seuil route in the French Chartreuse. The route is very popular, particularly over the last few years with its frequent publication in ski community forums. Proof, if any were needed, that basic rules such as timing need to be remembered. The avalanche occurred between the passage of a group at 11am and another just after 3pm.
Sector: Chartreuse, col de Marcieu, cirque de l’Aup du Seuil
Date: Wednesday 11/Jan/2011
Avalanche Bulletin : 1 -> 2 Natural avalanches: small avalanches on steep slopes, sometimes full depth on SE to SW slopesraides, parfois de fond, sector s/e <-> s/w
Starting point, just under cliffs at 1750 meters. The slope is between 25-30 degrees. The slab was 30-40cm deep and measured around 15x15 meters
The slab has picked up fresh snow and the debris has run to the edge of the forest some 200 vertical meters below
These saplings have been pushed over by the snow, there were some broken trunks
Looking up from the bottom, skiers had to modify their track after the avalanche
The avalanche is No. 9 on the avalanche zoning map
Most of the couloirs on the east side of the Chartreuse (Gresivaudan valley) have purged over the last days. The cross country ski trial between St Hilaire du Touvet and the Col de Marcieu was closed due to the risk of avalanches, with good reason looking at the debris.