Depth hoar is in abundance – a very unstable layer, where the crystals will not bind to each other. With the expected heavy snowfalls over the next 48 hours, and associated high winds, this will create a significant avalanche risk.
It is usual that where avalanche conditions exist, slope angles of between 25 to 35 degrees are at the highest risk. In our view, due to the very unstable layer, the risk angle could reduce to 20 degrees.
When it stops snowing and the skies have cleared, it will be very tempting to venture off piste on the first day. This is the most dangerous time:
• Watch out for the avalanche risk rating: we are expecting 4 or possibly 5 if there is significant snowfall.
• Avoid slopes over 25 degrees or maybe less.
• Watch out for steep slopes and do not enter a patch if there are skiers above you.
• Do not go on lee slopes.
• Tempting as it may be, if in doubt, say no.
For more about avalanche conditions, see Henry’s Avalanche Talk