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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Vest-Telemark Thursday 11.03.2021

Danger level 3 - Considerable avalanche danger

Published:
The danger increases when the wind picks up. Avoid areas with wind deposited snow, typically behind ridges, ribs and in gullies. Natural triggered avalanches is possible.

Avalanche problems

Wind drifted snow (slab avalanches)

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

Poor bonding between layers in wind deposited snow

Persistent weak layer (slab avalanches)

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

Buried weak layer of faceted snow beneath a crust
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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)

Wednesday 10. March 2021

I høyfjellet består det gamle snødekket av fokksnøflak av varierende hardhet. Enkelte steder er snødekket avblåst ned til smelteomvandlet overflate. Lavere ned er snødekket stort sett dekket av bærende skare. Under 1000 moh har snødekket tidligere vært gjennomfuktet.
Onsdag formiddag har økende vind og nysnø gitt ferske fokksnøflak i fjellsider vendt mot V til N.

I høyfjellet over ca. 1200 moh finnes det vedvarende svakt lag med kantkorn i snødekket, men dette ligger stort sett under hard skare.

Onsdag formiddag målte Honnegrasnuten (1340moh) -10 grader og SV sterk kuling.

Mountain weather

Wednesday 10. March 2021

8 mm precipitation, up to 15 mm in the most exposed areas. Fresh breeze from southeast, changing to moderate gale from the southeast during renoon. -9 °C to -5 °C at 1100 m a.s.l. Cloudy.

Thursday 11. March 2021

25 mm precipitation, up to 35 mm in the most exposed areas. Gale from southeast, changing to fresh breeze from the southeast during the afternoon. -6 °C to -2 °C at 1100 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

Kraftig vind og mye nysnø vil gi økt skredfare. Det vil dannes ferske, store fokksnøflak hovedsaklig i nordvestvendte heng. Stedvis kan fokksnøen legge seg oppå glatt skare. Flakene kan lett løses ut av en enkelt skiløper og det kan også gå naturlig utløste skred. I høyfjellet er det fortsatt mulig å løse ut skred på vedvarende svakt lag av kantkorn.
Avalanche danger scale Important information for ski touring
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