Avalanche warning for region Lyngen Saturday 30.03.2019

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The collapsing weak layer is thin < 3 cm. • Difficult to trigger • 2 - Medium • Many steep slopes N, NE, E, SE above 2500 masl

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within a meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Very difficult to trigger • 3 - Large • Some steep slopes NE, E, SE, S between 600 masl and 300 masl • Har sett på to plasser litt over tregrense i det siste der det finnes et lag av kantkorn ca 10 cm over mildvärsskare altså ikke kk helt mot skaren.

Avalanche Problems

• Wet slab avalanche • Buried weak layer of faceted snow above a crust • Within 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. • Many steep slopes N, NE, E, SE, S, SW, W, NW between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within a meter • The overlying slab is soft. • Difficult to trigger • Possible • 1 - Small • N, NE above 700 masl

Avalanche Problems

• Wet slab avalanche • Buried weak layer of new 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. • Difficult to trigger • Possible • 2 - Medium • Små til middels store skred mulig i terrengformasjoner som har samlet fokksnø. Her er det ikke kantkorn over skarelaget, men noe kantkorn under skaren som jeg ikke klarte å påvirke

Avalanche Problems

• Wet slab avalanche • Buried weak layer of faceted snow above a crust • Over one meter • The weak layer collapses easily and clean (easy propagation). • Very difficult to trigger • 2 - Medium • E, SE, S above 300 masl • I snøprofilet på 300 moh gjorde jeg en liten blokktest som sklei ut på ca 1,2 m dybde ved ganske lette slag. Fortsatte derfor med ECT som ikke gikk til brudd (ECTX).

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Easy to trigger • Many steep slopes E, SE above 500 masl • Kraftig snøføyk vil gi økt skredfare i utsatte heng frem til det stabilisert seg.