Avalanche warning for region Voss Thursday 18.03.2021

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. • Spontaneous release • 2 - Medium • Some steep slopes N, NE, E, W, NW above 800 masl • Skredproblemet er relatert til sjiktovergangar i fokksnøen etter siste snøfall.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). • Difficult to trigger • 1 - Small • Some steep slopes N, NE, S, SW, W, NW above 700 masl • Nysnø innad i fokksnøen har stabilisert seg godt.

• Loose wet avalanche • Loose snow • Spontaneous release • 1 - Small • Some steep slopes SE, S, SW, W above 600 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • 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 • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW between 1100 masl and 800 masl • Kantkorn under skare er svært godt armert av et overliggende islag opp til ca 1050 m o.h. Virker fornuftig å ha nedre grense på 1100 m o.h. for dette skredproblemet i varselet.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Easy to trigger • 2 - Medium • Some steep slopes N, NE, E, W, NW above 700 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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 1100 masl

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 • 2 - Medium • Few steep slopes N, W, NW above 800 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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 1100 masl • Det svake laget ligger under bærende skare. Det skal mye til for å påvirke svakt lag, men det vil være mulig å påvirke der snødekket er tynt og/eller mykt. Virker å være mest utviklet i høyden, og muligens(?) indre strøk. Usikker på om det er fordi vi har vært høyere når vi nå var lenger øst, eller om det er fordi de er mer utviklet i øst.

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). • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E, W, NW above 800 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 • 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 • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E, SE, S, SW, W, NW above 600 masl • virker som at fokksnøen har begynt å stabilisere seg.

• Dry slab avalanche • Buried weak layer of faceted snow beneath 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 • Some steep slopes N, NE, E, SE, S, SW, W, NW above 1100 masl • anser ikke kantkornet som "så" potent, tenker og det er i alle sektorer, men hvis det går til brudd på dette laget vil skredene kunne bli store

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within 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 • 3 - Large • Few steep slopes N, NE, E, SE, S, SW, W, NW above 1100 masl

• 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. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E, W, NW above 800 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. • Difficult to trigger • 2 - Medium • N, NE, NW above 600 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 • N, NE, E, SE, S, SW, W, NW above 1100 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. • Difficult to trigger • 2 - Medium • N, NE, NW above 600 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. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, E, W, NW above 600 masl • Tenker dette skredproblemet også er mulig å finne i flere sektorer

• 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. • Difficult to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW above 1000 masl • Finnes i regionen men veldig varierende. Første dag i ny region så vanskelig å fastslå

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within a meter • The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, NW above 600 masl

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 • 2 - Medium • Some steep slopes N, NE, E, W, NW above 600 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. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, NW above 600 masl

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 • 2 - Medium • Some steep slopes N, W, NW above 600 masl • Vi var i dag så vidt over 1100 moh. Vi fant lite utviklet kantkorn mellom skare og over skare, men laget har ikke særlig ugunstige egenskaper. Vanskelig til svært vanskelig å påvirke. Mulig det er annerledes i høyden eller andre steder i regionen.

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within a meter • The overlying slab is soft. • Difficult to trigger • 2 - Medium • Some steep slopes N, NE, NW above 600 masl