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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Friday 12.01.2024

Danger level 2 - Moderate avalanche danger

Published:
Locally unstable conditions. A skier or a snow mobile may trigger avalanches in the fresh wind slabs, while persistent weak layers deeper in the snow in general is hard to trigger.

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).

Buried weak layer of new 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 above a crust

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)

Thursday 11. January 2024

Noko fersk fokksnø over omlag 800 moh. Pågåande mildvêr vil starte smelteomdanning av snødekket opp til omlag 7- 800 moh.
Det eldre snødekket i høgda er hardt og berande.

Det er svake lag av kantkorn ved bakken og rundt mildværsskaren frå desember. I enkelte fokksnøflak er det observert rim.

Det er kantkorn over mildværskaren som er løfta fram som skredproblem.

Observasjon torsdag viser rask stabilisering i fersk fokksnø.
Lite aktivt kantkorn i ytre strôk.

Mountain weather

Thursday 11. January 2024

10 mm precipitation, up to 20 mm in the most exposed areas. Rain up to 800 m a.s.l Thursday night. Moderate gale from northwest. -6 °C to -1 °C at 1400 m a.s.l. Partly cloudy.

Friday 12. January 2024

6 mm precipitation, up to 18 mm in the most exposed areas. Rain up to 700 m a.s.l during the afternoon. Moderate gale from west, changing to fresh breeze from the west during the afternoon. -6 °C to -2 °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

Over mildværsgrensa vil snø og kraftig vind legge opp ferske fokksnøflak i leområder. Desse kan være lett å løse ut, men mildværet gjer også at dei vil stabilisere seg forholdsvis raskt.

Ytre strôk får truleg mest nedbør og ferske fokksnøflak. Observasjonar viser at desse strôka ikkje har særleg utbreiing av svake kantkornlag. Difor vil truleg ikkje fokksnøproblemet i ytre strôk bli forsterka av eit kantkornproblem.

Kantkornlaga i snøen kan bli påvirka der det eldre snødekket er mjukt, typisk i små skjerma botnar over mildværsgrensa. Mest aktuelt i indre strôk.

Avalanche danger scale Important information for ski touring
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