Avalanche warning for region Lyngen Sunday 10.04.2022

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. • Easy to trigger • 3 - Large

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. A big and identifiable crystal in the weak layer. • Easy to trigger • 3 - Large

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within a meter • A big and identifiable crystal in the weak layer. • Easy to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW between 1000 masl and 300 masl • Kantkorn er utbredt i lyngen alle stedene det har vært tørrsnø opp på det fuktige snødekke i slutten av mars. Er storvariasjon i egenskapene til det svake laget. I nord vest lyngen observerer jeg stortsett q3 brudd i et tjukt svakt lag, mens i andre steder av regionen så er det meldinger om tynnere svake lag over skaren. Min erfaring er at dette laget er mest utbredt rundt tregrensa og det er egenskappene til flakene over som driver skredaktiviteten.

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 • Some steep slopes N, NE, NW above 400 masl

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Easy to trigger • Some steep slopes N, NE, NW above 400 masl

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • Many steep slopes N, NE, E, SE, S, SW, W, NW above 400 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within half a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • N, NE, E, SE, S, SW, W, NW above unknown masl

• 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. A big and identifiable crystal in the weak layer. • Easy to trigger • 1 - Small • S, SW, W above unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within half a meter • The collapsing weak layer is thin < 3 cm. • Difficult to trigger

Avalanche Problems

• Dry slab avalanche • The weak layer collapses easily and clean (easy propagation). A big and identifiable crystal in the weak layer. • Easy to trigger

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within 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. • Easy to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW between 600 masl and 200 masl • Skred problemet er mest potent rundt tregrensa. Der det ligger harde fokksnøflak opp på kantkorn

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within 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 • Many steep slopes N, NE, E, SE, S, SW, W, NW between 1100 masl and 600 masl • Over tre grensa opplever jeg svake laget som vanskeligere og finne og mere "stubborn" Utbredelsen av svakelaget er knyttet til mildvær i slutten av mars så jeg mener det er riktig å sette en øvre høyde på dette skredproblemet. Det varierer innen regionen. Jeg setter 1100 meter her men det er min kvalifiserte gjetning.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within half a meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • Many steep slopes N, NE, E, SE, S, SW, W, NW • Inntrykket herfra er at kantkornlaget har stor utbredelse men med en del lokale forskjeller i egenskaper. overliggende flak varierer også mye i hardhet og tykkelse. Generelt virker det som at det er vanskelig å løse ut, men typisk der fokksnøflak er tynne kan det nok påvirkes med liten tillegsbelastning og skred kan bli store.