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Image 8 of 8 Of:  Avalanche Activity Copyright:  Arve@ObsKorps
Danger Sign
• Whumpf sound • Område: I denne fjellsiden. Beskrivelse: Lokale kollaps som ikke virket å spre seg utover.
Avalanche Activity
• 2. Apr. During the day • Loose dry avalanche • Few (2-5). 1 - Small. Spontaneous release • Few steep slopes. E. Above 600 masl
Weather
• Snow • -2.9 °C • 5 m/s from W → • 50% clouds
Snow Cover
• 125 cm • Some snow drift • 15 cm • Elevation of new snow 0 masl. Snow line at 0 masl • Much loose snow (10-30cm) • Dry • Ubundenvsnø til vindpakket mykt. Tiltagende snøfokk.
Tests
• LBT@30cm(Q3) • Middels kraft måtte til
Snow Profile
• 2 tests connected to snow profile • Persistent weak layer: thin layer, below slab, near surface • 13 temperature points observed
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. A big and identifiable crystal in the weak layer. • Easy to trigger • 2 - Medium • Some steep slopes N, NE, E, SE, S above 400 masl
• 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, SE, S above 400 masl
Avalanche Danger Assessment
• Bindingene i fokksnøen vil stabilisere seg men kantkornlaget vil være interessant å følge med på. Det ligger under et skarelag som ikke er særlig hardt. • 3 Considerable • Forecast correct