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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Hallingdal Friday 12.03.2021

Danger level 2 - Moderate avalanche danger

Published:
Be careful in areas with windslabs. A persistent weak layer of facets may be triggered, especially where the snow cover is thin.

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

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

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. March 2021

Sterk vind og nysnø siste døgnet har gitt ferske fokksnøflak, vesentlig i fjellsider vendt mot V til N.
Flakene har varierende utbredelse og hardhet etter hvor vindutsatt terrenget er. 

Det gamle snødekket under nysnøflakene er stort sett dekket av skarelag. I høyfjellet over ca. 1200 moh finnes det vedvarende svake lag av kantkorn rundt skarelag. Kantkorn under skare høyt i snødekket er lettest å påvirke. Det er også kantkorn ved bakken.

Torsdag kl 13 målte Hemsedal skisenter (1344moh) -8 grader og Ø stiv kuling.

Mountain weather

Thursday 11. March 2021

15 mm precipitation, up to 25 mm in the most exposed areas. Moderate gale from southeast, changing to fresh breeze from the southeast during the afternoon. -10 °C to -6 °C at 1400 m a.s.l. Cloudy.

Friday 12. March 2021

Little to no precipitation. Fresh breeze from southwest. -9 °C to -3 °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

Relativt roligere værforhold gir ferske fokksnøflak tid til gradvis stabilisering.
I høyden finnes svakt lag av kantkorn under skare høyt i snødekket. Laget har gitt gjentatte drønn i snødekket den siste tiden. Vær spesielt oppmerksom der fokksnøen er tynn/avblåst. Her kan det være mulig å påvirke vedvarende svakt lag under skaren.
Avalanche danger scale Important information for ski touring
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