Avalanche warning for region Jotunheimen Monday 08.02.2021

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). A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E, SE, S, W, NW above 1100 masl • Dette er de himmelretningene der den type svakt lag er påvist de siste 14 dagene.

• Dry slab avalanche • Buried weak layer of faceted snow near the ground • Within half a meter • A big and identifiable crystal in the weak layer. • Difficult to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW above 900 masl • Generelt utbredt i hele region.

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. • Difficult to trigger • 2 - Medium • Some steep slopes S, SW above unknown 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 • N, NE, E, SE, S, SW, W, NW above unknown masl

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within half a meter • The overlying slab is soft. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE above unknown masl • På stedet er det ikke flak nokk over kantkornlaget i overflaten. Men der det er til stedet vil det vare enkelt å løse ut små til middelst store skred

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 overlying slab is soft. A big and identifiable crystal in the weak layer. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E above 1200 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). • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE, S above 900 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. • Easy to trigger • 2 - Medium • N, NE, E, SE, S above 1000 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • Very difficult to trigger • 3 - Large • above 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). • Easy to trigger • 2 - Medium • Few steep slopes NE, E, SE, S above 900 masl • Størst vindpålagring i sør-øst. Skredproblemet anses som størst her. Men kan heller ikke utelukke annen eksposisjon.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of surface hoar • 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 • Few steep slopes E between 1000 masl and 800 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). A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE, S above 900 masl • Finner for det meste nedføyket kantkorn i dette laget og mindre rim. Overliggende fokksnøflak varierer også mye i tykkelse og hardhet. Men det virker som det er få steder med store nok flak til å produsere annet enn str 2 skred. Dette svake laget av FCsf føyket ned 30.1. Intrykket fra turen i dag, er at utbredelsen av overliggende flak er størst i østvendt terreng.

• Dry slab avalanche • Buried weak layer of faceted snow near surface • 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, SW, W, NW above 1000 masl • Dette er laget som føyket ned 9.1. Laget ligger nå dypere og viser ikke mye respons, men får enkelte utslag i tester fortsatt ved stor belastning der laget ligger høyere i snødekket. Andre steder der der dette laget ligger dypere, er kantkorna mer avrundet og gir urene brudd. Dette laget kan nok produsere enkelte store skred, men ventes å være vanskelig å påvirke de fleste steder.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within half a meter • The overlying slab is soft. • Easy to trigger • 1 - Small • Some steep slopes NE, E, SE above 900 masl

• 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 • Few steep slopes N, NE, E, SE, S, SW, W, NW above 1000 masl • Brudflaten var q1, men trengtes mye kraft på LBT før den gikk.

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. The overlying slab is soft. • Easy to trigger • 2 - Medium • N, NE, E, SE, S, SW, W, NW

• 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 • N, NE, E, SE, S, SW, W, NW • kantkorn mellom skarelag, usikker utbredelse. Tykt og ujevnt lag med kant mellom lagene. øverste skarelag er betydelig tynnere/skjørere enn underliggende skarelag. mulig disse skarelagene har større avstand andre steder i terrenget enn ved dette observasjonsstedet. kun gravd på en plass.

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 • Some steep slopes NE, E, SE above 800 masl • Fokksnølaget som ligger på svakt lag av kantkorn ligger fra skoggrensen og opp.

• 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 • 3 - Large • Many steep slopes E above 1000 masl • Undersøkt i østlig retning