Avalanche warning for region Jotunheimen Friday 15.01.2021

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within half a meter • A big and identifiable crystal in the weak layer. • SW between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • Very difficult to trigger • E

Avalanche Problems

• 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. The overlying slab is soft. • Easy to trigger • 2 - Medium • Some steep slopes SE, S, SW between 1800 masl and 1400 masl • Kun gjennomført profiler i høyde 1400-1800 moh.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within a meter • Very difficult to trigger • 3 - Large • Few steep slopes S, SW below unknown masl

Avalanche Problems

• Buried weak layer of faceted snow beneath a crust • Within a meter • The weak layer collapses easily and clean (easy propagation). • NW • Kantkornlag under skarelag.

Avalanche Problems

• 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 overlying slab is soft. • Easy to trigger • 2 - Medium • Some steep slopes S, SW between 1500 masl and 1400 masl

• Buried weak layer of faceted snow beneath a crust • Within a meter • S, SW between 1500 masl and 1400 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within half a meter • A big and identifiable crystal in the weak layer. • S between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • Very difficult to trigger • NW

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes S between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Very difficult to trigger • 2 - Medium • SW, W • Hard fokksnø ligg som bru over det svake laget, og difor svært vanskeleg å påverka.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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. • SW, W

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. • Difficult to trigger • NW

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes S between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes S between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • The overlying slab is soft. A big and identifiable crystal in the weak layer. • 2 - Medium • E, SE • Det er flere skarelag med (avrundete)kantkorn under, under fokksnøen. Der jeg har testet har det vært vanskelig å påvirke ved hjelp av tester og det bryter verken lett eller spesielt glatt. Andre i samme område melder derimot om mye spenstigere forhold, så det virker vanskelig å håndtere problemet.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • The overlying slab is soft. • Very difficult to trigger • 2 - Medium • SE, S above 1600 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. The overlying slab is soft. A big and identifiable crystal in the weak layer. • Easy to trigger • 3 - Large • Some steep slopes E, SE, S between 1400 masl and 900 masl • Vinden har herja hardt høyere til fjells, og flakene er her mindre og hardere. Trenger svært gode leformasjoner for å finne mykere flak høyere til fjells.

Avalanche Problems

• Buried weak layer of faceted snow beneath a crust • Within half a meter • E

Avalanche Problems

• 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. • Very easy to trigger • 1 - Small • Some steep slopes E between 2500 masl and 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. • Difficult to trigger • Some steep slopes

• Buried weak layer of faceted snow near surface • Within half a meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Very difficult to trigger

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes SE, S above 1400 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 • 3 - Large • Some steep slopes E, SE, S between 1400 masl and 1000 masl • Skredproblemet vil være mindre utpreget der vinden har tatt hardt, da flakene er hardere og mindre. Vindretningen skiftet fra V-NV til NØ i løpet av natt til 11.01, moe som kan gjøre at en muligens kan finne noen mindre flak også i SV. Men trolig ikke nok snø tilgjengelig for transport til at det er noe å bry seg med.

Avalanche Problems

• NW

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Difficult to trigger • 2 - Medium • Some steep slopes S between 1500 masl and unknown masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • S between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Difficult to trigger • 2 - Medium • Many steep slopes S

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Many steep slopes S

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Easy to trigger • 2 - Medium • S between 1500 masl and unknown masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within half a meter • A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • S

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. • Difficult to trigger • 2 - Medium • Many steep slopes SE, S, SW

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • The overlying slab is soft. A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Many steep slopes SE, S, SW

Avalanche Problems

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The collapsing weak layer is thin < 3 cm. • Easy to trigger • 1 - Small • Some steep slopes SE, S, SW below 1500 masl