Skredaktivitet
• 17. apr. I løpet av dagen • Tørre flakskred • 3 - Store. Naturlig utløst • Noen bratte heng. SØ. Under 1000 moh • Reported yesterday already, had a better look at it today.
Vær
• 2,5 °C • 2.5 deg. @ 780m, kl 11:20
Snødekke
• 200 cm • 0 cm • Snøgrense på 0 moh. Grense for lagdelt snø er på 0 moh • Våt løssnø • Corn snow ("Firn") on S asp at 11:30. 200cm HS at 700m, S-SW asp.
Skredproblem
• Våte løssnøskred • Ubunden snø • Naturlig utløst • Mulig • 2 - Middels • Mange bratte heng Ø, SØ, S, SV, V under 900 moh
• Kantkornet snø under skarelag • Over en meter • Naturlig utløst • Mulig • 3 - Store • N, NØ, Ø, SØ, S, SV, V, NV over 300 moh • No significant weak layer observed on S-SW aspect today besides and older sun crust 150cm down. This may be a local oddity in the area, which has seen a substantially thicker snowpack than the rest of Nord Troms.
Skredfarevurdering
• As said yesterday, the warming is re-activating buried weak layers. In addition, loose snow avalanches continue to slide on solar aspects. Cornice failure is likely too, and that can trigger larger slab avalanches. We are still "stepping back" from the previous week. • Colder temperatures tomorrow, but I expect no significant surface freezing/radiation cooling due to cloud cover overnight for the snowpack to tighten overnight - FG3. • 3 Betydelig • Varslet faregrad er riktig
Notater
• Skied south-southwest facing slopes on Arnøya today, making sure we are down before noon. Radiation cooling overnight and sun during morning provided for excellent corn snow skiing. West aspects looked thin and "tense" - also a larger south face near us looked like its ready to slide. Safe solar aspect skiing requires good knowledge and route choices.