Avalanche warning for region Jotunheimen Wednesday 08.12.2021

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • 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. A big and identifiable crystal in the weak layer. • Very easy to trigger • 1 - Small • Few steep slopes N, NE, NW above 1100 masl • Skredstørrelse gjelder dette snøfattige område.

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). The overlying slab is soft. • Easy to trigger • 1 - Small • Few steep slopes N, NE, NW above 1100 masl

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Within a meter • The overlying slab is soft. A big and identifiable crystal in the weak layer. • Easy to trigger • 1 - Small • Few steep slopes N, NE, NW above 1100 masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • 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 • Some steep slopes N, NE, E, W, NW above 1200 masl

• 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. A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • Few steep slopes N, NE, E, SE, S, SW, W, NW above unknown masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). • Difficult to trigger • 1 - Small • Few steep slopes NE, E, SE above 1100 masl • Enkelte svake overganger i "den gamle" fokksnøen. Bryter glatt, men ingen bruddforplantning i tester. Dette er laget som kom med vind fra V, og det ligger primært i østlig sektor.

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within a meter • Very difficult to trigger • 2 - Medium • Few steep slopes N, NE, E, SE, S above 1000 masl • Det er et VVSL både over og under skarelaget fra forrige mildvær. Det er ingen respons i tester, men det kan utvikle seg, gitt temp. gradienten. Jeg var bare i heng i østlig sektor, og kjenner derfor ikke til utbredelsen av laget i vestlig sektor.