Avalanche warning for region Lyngen Wednesday 28.03.2018

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Within a meter • The weak layer collapses easily and clean (easy propagation). The overlying slab is soft. A big and identifiable crystal in the weak layer. • Easy to trigger • Likely • 3 - Large • Many steep slopes between 900 masl and 300 masl • Vedvarende svakt lag av kantkorn. Flere steder også beger. Gir drønn og hul lyd. Sommer steder er skarelaget over fortsatt tykt/hardt, men har inntrykk av at det holder på å gå i oppløsning. Svakt lag bryter lett, men ikke glatt vegetasjon og sukker.

• Dry 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. • Easy to trigger • Likely • 2 - Medium • Most steep slopes N, NE, E, SE, S, SW, W, NW between 1000 masl and 200 masl • Lite vind, mye snø tilgjengelig. Dårlig forplantningsevne, men kan trigge svakere lag under.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • Easy to trigger • Possible • 3 - Large • Many steep slopes • Utelukker ikke mulighet for str. 4 skred i høyden. Utbredelsen i høyden er jeg derimot usikker på, som før. Trolig mest utsatt under ca. 600-700 moh. Se gamle observasjoner av drønn og snøprofiler.

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Easy to trigger • Likely • 3 - Large • Many steep slopes E, SE, S, SW above 200 masl • Vanskelig å tenke seg til utbredelsen... Forventer også naturlig skred i ulike størrelser, kan settes mange ulike kombinasjoner av skredproblemet!

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Easy to trigger • Possible • 3 - Large • Some steep slopes SE, S, SW above 500 masl • Økende vind i høyden.

Avalanche Problems

• Dry slab avalanche • The weak layer collapses easily and clean (easy propagation). • Easy to trigger • Likely • 4 - Very large

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • A big and identifiable crystal in the weak layer. • Spontaneous release • Likely • 3 - Large • Also in moderately steep terrain E above 300 masl

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within half a meter • The weak layer collapses easily and clean (easy propagation). The collapsing weak layer is thin < 3 cm. • Spontaneous release • Likely • 3 - Large • Also in moderately steep terrain E above 300 masl

• Dry slab avalanche • Poor bonding between crust and overlying snow • Within half a meter • The overlying slab is soft. • Easy to trigger • Possible • 2 - Medium • Few steep slopes SE above 800 masl

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The overlying slab is soft. • Easy to trigger • Possible • 2 - Medium • Many steep slopes E, SE, S above 600 masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between crust and overlying snow • Within a meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Easy to trigger • Possible • 3 - Large • Some steep slopes NW below 300 masl • Store krystaller i det vedvarende svake laget.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • A big and identifiable crystal in the weak layer. • Spontaneous release • Possible • 3 - Large • Many steep slopes E, SE above 0 masl

• Dry 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. • Spontaneous release • Possible • 3 - Large • Some steep slopes E, SE between unknown masl and 0 masl