Avalanche warning for region Jotunheimen Sunday 19.02.2023

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 overlying slab is soft. A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Some steep slopes E, SE, S above 1000 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Easy to trigger • 1 - Small • Some steep slopes SE between unknown masl and unknown masl

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 • SE

Avalanche Problems

• Loose dry avalanche • Difficult to trigger • 1 - Small • Few steep slopes above unknown masl

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 • 2 - Medium • N, NE, NW between 1400 masl and unknown masl • Dårlig binding mellom nedføyket DF/PP og RG lag. Vanskelig å løse ut under 35 grader

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • 1 - Small • Some steep slopes E, SE between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). • Easy to trigger • 1 - Small • Few steep slopes SE between unknown masl and unknown masl

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. A big and identifiable crystal in the weak layer. • Easy to trigger • 1 - Small • N above 1200 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Difficult to trigger • 2 - Medium • Some steep slopes N above 1500 masl

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 • 2 - Medium • Some steep slopes N, W, NW between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • Difficult to trigger • N, NW

Avalanche Problems

• Loose dry avalanche • Buried weak layer of new snow • Easy to trigger • NE

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within a meter • Difficult to trigger • 2 - Medium • Some steep slopes between unknown masl and unknown masl • Sjiktoverganger i fokksnøen

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Easy to trigger • 2 - Medium • Some steep slopes NW between unknown masl and unknown masl • Mye vindtransportert snø i lesider og over toppen. Foreløpig virker flaket mykt og er for mykt til å gi videre forplantning.

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 • 2 - Medium • N, W, NW above unknown masl • Foreløpig ikke ett potent svakt lag, krever stor tilleggsbelastning for å løse ut. Ved kaldere temperaturer og økt temperaturgradient kan vi få videre oppbyggende omvandling som kan aktivere dette laget.