Danger Sign
• Whumpf sound • Område: I denne fjellsiden
Tests
• ECTP6@17cm • Poor • Sudden collapse with energy.
Snow Profile
• 1 test connected to snow profile • Fairly thin snowpack in the areas with the worst collapsing. • Persistent weak layer: thin layer, below slab, near surface
Avalanche Problems
• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • The weak layer collapses easily and clean (easy propagation). The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Easy to trigger • 2 - Medium • Few steep slopes N, NE, E, SE, S, SW, W, NW • After getting several widespread collapses, i dug a quick pit to see what the noise was about. Seems as though the latest snow from the weekend possibly in combination with warmer temperatures (the overlying wind slab now feels softer and rubbery) has in some locations reactivated the facets under the 15 january (?) crust. Not sure to what extent this avalanche problem has become this potent regionally, but i was in this area yesterday with no collapses. This snowpack structure is at least fairly widespread in the area around Longyearbyen, but since i've only observed the problem being this potent and reactive here, i put utbredelse as få bratte heng.
Avalanche Danger Assessment
• Ser ut som kantkorn problemet / vedvarende svakt lag ble mer potent i de siste 24 timer. Flere drønn i snøen observert rundt Longyearbyen i dag. Profilen og stabilitetstest viser kantkorn under skare er nå ganske reaktiv. • Jeg tror kantkorn problemet er hovedproblemet for øyeblikket. Hvis dette problemet er lett å løse ut over en stor del av regionen er vi kanskje tilbake opp mot fg3.