Above 2,500ft None
1,500 to 2,500ft None
Below 1,500ft None
Degrees of Avalanche Danger ?
Avalanche season is here! Coverage is decent above 4,500ft, and people have been skiing/riding. Nadahini area is looking good. Snow depths above 4,500ft are between 30-90cm, with the deepest snow on sheltered north aspects.
We had a scary close-call skier-triggered avalanche last year on Nadahini at this exact time. Remember that it’s full-on avalanche season and layers already exist within the new snow. Standard caution would advise avoiding wind loaded slopes 30 degrees and steeper. If you choose to venture onto these slopes, carefully evaluate them. Consider how slick the ground surface may be, and how well bonded any storm layers are. Are there wind slabs that react and slide around? Hand shears, compression tests, and slope tests will be very useful.
As any new snow comes in, expect the fresh storm snow to be unstable for at least a few days until it has a chance to settle and bond.
Start the season with fresh batteries in your beacon, and do a rescue practice with your partners. Always carry a beacon, shovel, and probe, and KNOW HOW TO USE THEM.
Practice good risk management, which means only expose one person at a time to slopes 30 degrees and steeper, make group communication and unanimous decision making a priority, and choose your terrain wisely: eliminating unnecessary exposure and planning out your safe zones and escape routes.
Recent Avalanche Activity
Natural wet slabs, storm slabs, and loose slides have been occurring during recent storms, all size D2-D3. Most of these have been occurring on steep, wind loaded north aspects above 4,500ft. In areas of slick ground or bare rock/unsupported slopes, some of these slides failed at the ground.