Avalanche warning for region Jotunheimen Thursday 10.01.2019

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Within half a meter • Difficult to trigger • 2 - Medium • SE, S, SW above 1300 masl • Svakt lag løste ut på CTH 30, 50cm ned i snødekket. ECTX.

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. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE below 1500 masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between layers in wind deposited snow • Difficult to trigger • 2 - Medium • Some steep slopes E, SE, S, SW, W between 1500 masl and 1500 masl • Samme type snø ifra topp til bunn. Høyst sannsynlig fokksnø ifra den siste uken. Fokksnøen vil mest sannsynlig binde seg iløpet av noen dager.

Avalanche Problems

• 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. • Difficult to trigger • Possible • 2 - Medium • Some steep slopes E, SE, S above 1300 masl • Det er skiftende vind, så fersk fokksnø kan ha lagt seg på lausere snø også i andre himmelretninger.

Avalanche Problems

• 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 • Possible • 1 - Small • Some steep slopes NE, E, SE between 1600 masl and 1000 masl • Binder seg nok raskt med såpass høye temperaturer (litt over null i høyfjellet)

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. • Easy to trigger • 2 - Medium • Some steep slopes NE, E, SE below 1500 masl

Avalanche Problems

• Dry slab avalanche • Poor bonding between crust and overlying snow • Within half a meter • Difficult to trigger • Possible • 2 - Medium • Few steep slopes E, SE, S, SW, W between unknown masl and 0 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 • Possible • 2 - Medium • Some steep slopes NE, E, SE, S above 1000 masl • Vindtransportert snø siste døgn har gitt myke flak på nedføyket nysnø i s-nø heng. Går lett til brudd. Ventet størrelse 1-2.

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 • 1 - Small • NE, E, SE, S • Ingen utslag på tester i snøprofilen. Ca 50meter unna var ei lita fonn. Der løsnet fokksnøflak lett av ski- kutting.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The weak layer collapses easily and clean (easy propagation). • Easy to trigger • Possible • 2 - Medium • Some steep slopes SE

Avalanche Problems

• 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 E, SE, S between 1600 masl and 1000 masl • Jeg har bare vært i dette området. Kjenner ikke til utbredelse og høyde.

Avalanche Problems

• 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 • Possible • 2 - Medium • E, SE, S between 1600 masl and 1000 masl

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • Easy to trigger • 2 - Medium • Some steep slopes SE, S, SW • Første dag i området i dag. Vår gruppe vurderer det som sannsynlig at pålagringen av fokksnø gir samme skredproblem i SØRVEST, SØR og SØRØST-vendte heng.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • Within half a meter • The overlying slab is soft. • Difficult to trigger • 1 - Small • SE • Nedføket nysnølag i le side

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. • Easy to trigger • Possible • 2 - Medium • Some steep slopes E, SE, S, SW above 1000 masl • Skred vurderes til å kunne bli små til middels og knytter seg til lommer og le heng med fokksnø over nedføyket nysnø.

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. • Very difficult to trigger • 1 - Small • Few steep slopes E, SE, S above 1000 masl • Kan potensieltl bli skred i tynne flak oppå smelt-frys-skare fra 5. januar. Inntrykket av skredproblemet er at det sensitivity = unreactive eller stubborn, og distribution = specific. Dermed blir det usannsynlig til mulig med skred med dette skredproblemet. Skredstørrelsen antas å være 1 - små. Det har vært lite snø tilgjengelig for vindtransport etter mandag.

Avalanche Problems

• Dry slab avalanche • Buried weak layer of new snow • E, SE between 1200 masl and 1000 masl • Ikke verifisert mengde snø i leheng!

• Buried weak layer of new snow • Many steep slopes E, SE between 1200 masl and 1000 masl