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Avalanche warning for region Trollheimen Thursday 12.12.2019

Danger level 2 - Moderate avalanche danger

Published:
Be careful in lee areas with wind deposited snow, typically behind ridges, ribs and in gullies. Especially where the wind deposited slabs are thin or soft, a slab avalanche is easier to trigger here.

Avalanche problems

Wind drifted snow (slab avalanches)

You can easily trigger avalanches on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Poor bonding between layers in wind deposited snow

Below you can see a description of the current snow cover information and current weather forecast in the mountains. If your observations deviate greatly from what is described here, the warning will not necessarily apply either. Always make your own judgments or stay away from avalanche terrain.

Snow cover (in Norwegian)

Wednesday 11. December 2019

Varierende temperatur, nedbør og vind den siste uken har gitt et snødekke med flere harde skarelag og fokksnø av variende hardhet og mengde.

Der det er tynt snødekke er det gjort observasjoner som tyder på at kantkorn kan være aktivt. På tykt snødekke er det mer sannsynlig at kantkornlag er dekket av bærende skarelag.

Det er kommet observasjoner om drønn i snøen, fortrinnsvis på tynt snødekke. Fra tirsdag ettermiddag til natt til onsdag blåste det kraftig fra sørvest.

Mountain weather

Wednesday 11. December 2019

2-5 mm precipitation. Gale from south, changing to strong breeze from the southwest during renoon. -8 °C to -2 °C at 1400 m a.s.l. Partly cloudy.

Thursday 12. December 2019

Little to no precipitation. Gale from south, changing to strong breeze from the south during the afternoon. -9 °C to -5 °C at 1400 m a.s.l. Partly cloudy.

Advice

The bulletin is a planning tool and may differ from the actual situation. Always make your own evaluation. To be 100 % avalanche safe, avoid all avalanche terrain.

Avalanche risk assessment

Fortsatt kraftig vind vil kunne danne noen nye fokksnøflak i leheng, fortrinnsvis mot nord. Tirsdagens og onsdagens fokksnøflak ventes å ha stabilisert seg, men vær oppmerksom på tynt snødekke der fokksnøflak kan ha lagt seg over vedvarende svakt lag av kantkorn.
Avalanche danger scale Important information for ski touring
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