Avalanche warning for region Indre Fjordane Tuesday 15.01.2019

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. • Very easy to trigger • 3 - Large • Some steep slopes NE, E, SE, S, SW above 500 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. • Very easy to trigger

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 • 3 - Large • Some steep slopes NE, E, SE, S above 400 masl • Har ikke vært noe særlig over tregrensa pga guffent vær og dårlig sikt, men antar at skredproblemet fins i leformasjoner også der.

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • The weak layer collapses easily and clean (easy propagation). The overlying slab is soft. • Easy to trigger • Possible • 1 - Small • NE, E, SE above 0 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 • 2 - Medium • Some steep slopes E, SE, S, SW, W above 600 masl

• 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. • Spontaneous release • 3 - Large • Some steep slopes N, NE, E, SE, S, SW, W, NW between 1400 masl and 1200 masl • Skredaktiviteten de neste dagene burde avsløre hvor utbredt dette skiktet er.

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). The collapsing weak layer is thin < 3 cm. The overlying slab is soft. • Easy to trigger • 1 - Small • Many steep slopes E, SE, S above 800 masl • Markant forskjell i bruddforplantningsevne frå 700 til 800moh. Ved 800moh og opp er den overliggande snøen meir vindpåvirka og det svake laget tynt med plan bruddflate, lange skytande sprekker frå ski/brett. Det er stor hardheitsforskjell mellom svakt lag og overliggande snø. Under 700moh er snøen mindre vindpåverka og det svake laget er tjukkare med ujamn bruddflate (Q3). Djupne på vindtransportert snø varierar kraftig. Fokksnøen virkar her å henge godt til gammalt skarelag. Usikker på kantkornutvikling. Mulig med små skred i denne fjellsida, lite snø. Tidvis fin snø i søkk.

Avalanche Problems

• Dry slab avalanche • Poor bonding between crust and overlying snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). The overlying slab is soft. • Very easy to trigger • Possible • 2 - Medium • Some steep slopes NE, E, SE, S, SW above 700 masl • Spesielt utsatt bak kantar og ryggar i terrenget i overgangen mot brattare terreng

• 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 • Possible • 2 - Medium • Some steep slopes NE, E, SE, S above 700 masl • Spesielt utsatt bak kantar og ryggar i terrenget, der nysnøen er vindpåvirka og bunden til flak.