Avalanche warning for region Sunnmøre Wednesday 15.03.2023

Avalanche Problems

• Dry slab avalanche • Poor bonding between crust and overlying snow • Within a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Easy to trigger • 3 - Large • Many steep slopes above unknown masl • Tror jeg

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • 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. • Spontaneous release • 4 - Very large • Few steep slopes N, NE, E, SE, S, SW, W, NW above 700 masl • Der det er kort veg ned til skaren og sola steiker er mest utsatt no medan d er finevær.

• Dry slab avalanche • Buried weak layer of new snow • 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, S, SW above 600 masl

Avalanche Problems

• 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 • 4 - Very large • Many steep slopes N, NE, E, SE, S, SW, W, NW above 700 masl • Vanskelig å løse ut for en skiløper men kan løses ut av vind, mildvær og sol. Vanskelig å løse ut i noen/mange eller naturlig i få (eller svært få)

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Easy to trigger • 2 - Medium • Few steep slopes N, NE, E, SE, S, SW, W, NW above 600 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 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 E, SE, S above 700 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Over one meter • The collapsing weak layer is thin < 3 cm. • Difficult to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW above 600 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 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 E, SE, S, SW above 700 masl

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Over one meter • The collapsing weak layer is thin < 3 cm. • Difficult to trigger • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW above 700 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 • 2 - Medium • Many steep slopes N

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Easy to trigger • 1 - Small • Some steep slopes N, NE, E, SE, S, SW, W, NW • De nedføykede nedbørspartiklene har fasetter og går mot kantkorn.

• 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. • Difficult to trigger • 2 - Medium • Few steep slopes N, NE, E, SE, S, SW, W, NW above 700 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Within a meter • The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Difficult to trigger • 3 - Large • W above 700 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Easy to trigger • 2 - Medium • Some steep slopes NE above 700 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow beneath a crust • Over one meter • The collapsing weak layer is thin < 3 cm. A big and identifiable crystal in the weak layer. • Spontaneous release • 5 - Extremely large • Few steep slopes NE, E, SE, S above 600 masl

• 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. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE, S above 600 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of faceted snow near surface • Within a meter • Easy to trigger • 3 - Large • Few steep slopes N, NE, E, SE, S, SW, W, NW • Strukturen med tynn snerk over store FCsf fremstår som utbredd i det terrenget vi sett (900-1200moh V-S-Ø), men det er ikke overalt det er flak. Det virker ikke heller så ustabilt som det kanskje kan se ut i profil/tester. Noen skytende sprekker viser at det noen steder er lett å løse ut, men andre steder trengte det hopping for å gi respons, eller gav ikke respons i det hele tatt. Jeg setter alle himmelretninger fordi jeg har ikke sett nok terreng, og har ikke peiling på høyde i det hele tatt.

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Easy to trigger • 2 - Medium • Some steep slopes N, NE, E, SE, S • Østlig vind flyttet noe snø langs bakken, og denne gav av og til respons i nedføyket DF 5-30cm ned.