Avalanche warning for region Jotunheimen Friday 05.05.2023

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 • 2 - Medium • Some steep slopes N, NE, NW above 1100 masl • Eg vil tru detta laget kan ha begrensa utbredelse, ihvertfall her i området. Mulig vedvarende svakt lag med kantkorn over skarelag finnes i alle himmelretninger nokon steder da nattetemperaturen vore veldig kald i det siste i høgfjellet, også kaldt i lufta på dagtid. Kun sola som varma overflata, og usikker på kor langt ned den påvirker snødekket i sørvendte sider. Nordvendte har oppbyggendeprosess på kantkornlag. Overflaterim/overflatekant ligger utover dagen og blir lite påvirka av sola i nordvendt side. Når eg beveger meg i østvendte sider er det ingen tegn til drønn.

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within half a meter • Easy to trigger • 2 - Medium • Few steep slopes N, NE, NW above 1100 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Few steep slopes NE, E, SE, S, SW, W above 1000 masl

• Wet slab avalanche • Water pooling in/above snow layers • 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. • Spontaneous release • 2 - Medium • Few steep slopes SE, S, SW

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. • Difficult to trigger • 2 - Medium • W between 1200 masl and unknown masl • Svakt lag - begynnande kantkorn

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Few steep slopes N, NE, E, SE, S, SW, W, NW above unknown masl • Setter få bratte og str 2 pga ujevn flakfordeling,

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 N, NE, E, SE, S above 1500 masl • Mest i austleg sektor, men og i sør- og nordvendte renner og forseinkingar som samlar snø på tvers i vestavinden.