Avalanche warning for region Jotunheimen Monday 02.03.2020

Avalanche Problems

• Dry slab avalanche • The collapsing weak layer is thin < 3 cm. • Difficult to trigger • 2 - Medium • N, NE above 2500 masl

Avalanche Problems

• Dry slab avalanche • The weak layer collapses easily and clean (easy propagation). The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Difficult to trigger • 2 - Medium • Many steep slopes N, NE, W, NW between 2000 masl and 1000 masl • Leheng i denne formasjonen er kunstig grunnet mye turbulens og lokale vinder

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 • Many steep slopes N, NE, W, NW between unknown masl and 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. • Easy to trigger • 2 - Medium • Some steep slopes N, NE, W, NW between unknown masl and unknown masl

Avalanche Problems

• 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 • 1 - Small • N, NE, W, NW 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). The overlying slab is soft. • Easy to trigger • S, SW, W, NW between unknown masl and unknown masl

• Poor bonding between layers in wind deposited snow • Within half a meter • The overlying slab is soft. • S, SW, W

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, NW between unknown masl and unknown masl

Avalanche Problems

• 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. A big and identifiable crystal in the weak layer. • Easy to trigger • 3 - Large • Some steep slopes N, NE, E, SE above 1000 masl • Bryter i sjiktet mellom gammel.og nyere fokksnø. Utbredelse er vanskelig å bedømme. Kan være i mange bratte heng her i området.

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within a meter • 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 1300 masl and 800 masl • Utbredelse bedømt ut fra at laget er påvist ved alle obs. her i nordlige Jotunheimen. Laget er mer påvirket av tynnere snødekke og jevn kulde her enn lengre nordvest i Jotunheimen -> skaren smuldret mer opp.

• Loose dry avalanche • Loose snow • Spontaneous release • 1 - Small • Some steep slopes N, NE, E, SE, S, SW, W, NW above 1000 masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Difficult to trigger • 2 - Medium • W, NW between unknown masl and unknown masl

Avalanche Problems

• Dry slab avalanche • 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. • Very easy to trigger • 2 - Medium • Some steep slopes N, W, NW above unknown masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Easy to trigger • 1 - Small • Few steep slopes SW, W, NW between 1800 masl and 1200 masl • Dette skredproblemet er på lokale steder i lehenget og gjelder ikke generelt i hele lehenget.

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. • Difficult to trigger • 2 - Medium • S, SW, W, NW between unknown masl and unknown 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. • Difficult to trigger • 3 - Large • Many steep slopes N, NE, NW above 1000 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow above a crust • Within 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 between 1300 masl and 800 masl • Tilstede ved tregrensen +-

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within half a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes NW above 1000 masl • Ikke sett dette tidligere, og bare gravd i NV helling. Antar at det har blitt dannet i løpet av siste uke. Det var to lag, begge innen en halv meter fra overflaten.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Within a meter • Difficult to trigger • N, W, NW between unknown masl and unknown masl • CT som gir utslag nede i smeltepakka. Kan være påvirket av ujevn steingrunn som underlag. Ny CT ga ikke utslag.

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • The overlying slab is soft. • Difficult to trigger • N, W, NW between 2500 masl and unknown masl

Avalanche Problems

• Loose snow