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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Sunday 23.02.2020

Danger level 3 - Considerable avalanche danger

Published:
Unstable wind slabs may cover a slippery crust in lee areas. Avalaches can be triggered by a single skier. Avoid lee areas where you find wind slabs.

Avalanche problems

Wind drifted snow (slab avalanches)

You can easily trigger avalanches on some steep slopes. Avalanches can get large enough to bury a car or destroy a small house (size 3).

Buried weak layer of new snow
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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)

Saturday 22. February 2020

Snøoverflaten består av vindtransportert snø av varierende hardhet over skare. Det er fortsatt snø tilgjengelig for vindtransport. Det er mest snø i østlig sektor, der har det har lagt seg opp store skavler. Rygger og vindutsatte partier er stedvis avblåst.

Det er observert begynnende kantkorn under eldre skarelag. Det er ingen observasjoner som tyder på at dette utgjør et skredproblem.

Det er observert en stor temperaturgradient i øvre del av snødekket lørdag.

Mountain weather

Saturday 22. February 2020

10 mm precipitation, up to 20 mm in the most exposed areas. Strong breeze from west. -8 °C to -4 °C at 1400 m a.s.l. Cloudy.

Sunday 23. February 2020

20 mm precipitation, up to 35 mm in the most exposed areas. Strong breeze from west. -10 °C to -4 °C at 1400 m a.s.l. 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

Nytt stort snøfall i kombinasjon med vind vil legge opp ferske nysnøflak i leområder. Store naturlig utløste skred kan forekomme.

Kaldere temperaturer gjør at eldre fokksnøflak stabiliseres sakte, spesielt i høyden.
Avalanche danger scale Important information for ski touring
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