Avalanche warning for region Hallingdal Thursday 01.02.2024

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Over one meter • A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Many steep slopes N, NE, E, SE, S, SW, W, NW

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The overlying slab is soft. • Easy to trigger • 2 - Medium • Some steep slopes N, NE, E, SE, S above 900 masl

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Within a meter • A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • Few steep slopes N, NE, E, SE, S above 1000 masl • Støtst problem der snødekket er tynt

Avalanche Problems

• Buried weak layer of faceted snow near the ground • Within a meter • A big and identifiable crystal in the weak layer. • E

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. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE above 1000 masl • Som beskrevet i varselet. Finner dette både i djupere fokksnøflak, men også på tynnere snødekke med "sukkersnø" under.

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • 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 • Finner kantkorn og fasetter under skarelag. Dette bryter lett og glatt med lite tilleggsbelastning på LBT. Tror det skal en del til for å løse det ut, men da kan skredene bli store. Fikk ikke gjort ECT pga manglende sag.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE above 800 masl • Det fins løsere nysnø som har føyka ned i østvendte heng.

• 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 • 2 - Medium • Few steep slopes N, NE, E, SE, S above 900 masl • Lag av kantkorn fins i ulike formasjoner i snødekket, og ikke minst ved bakken. Som skredproblem har det nok begrenset utbredelse, og fins stort sett i samme heng som fokksnøproblem. Typiske triggerpunkter kan være der snødekket er relativt tynt i kanten av heng med fokksnøflak