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Avalanche warning for region Jotunheimen Wednesday 15.12.2021

Danger level 3 - Considerable avalanche danger

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

Avalanche problems

New 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

Persistent weak layer (slab avalanches)

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

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)

Tuesday 14. December 2021

Snøoverflaten består av fokksnøflak med ulik hardhet i mange himmelretninger. Det er fortsatt relativt lite snø i terrenget og snøen ligger stort sett i søkk og renneformasjoner. Under tregrensa er det begrenset med skiføre.

Det er observert lag med kantkorn under skarelag i snødekket, samt begerkrystaller og kantkorn ved bakken, men hvor aktivt dette er, er usikker

Tirsdag er det målt snødybde på 64 cm på Valdresflya.

Mountain weather

Tuesday 14. December 2021

11 mm precipitation, up to 20 mm in the most exposed areas. Rain up to 1000 m a.s.l during the evening. Fresh breeze from southwest, changing to gale from the southwest during the afternoon. -9 °C to -4 °C at 1800 m a.s.l. Cloudy.

Wednesday 15. December 2021

16 mm precipitation, up to 35 mm in the most exposed areas. Rain up to 1200 m a.s.l Wednesday night. Strong breeze from southwest, changing to gale from the west during the evening. -6 °C to -1 °C at 1800 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

Nysnø og sterk vind gir økt pålagring og ustabile fokksnøflak i fjellsider vendt mot nord og øst. Vestlige deler av regionen ventes å få mest nedbør, så her ventes størst skredfare.

Der det gamle snødekket er tynt, kan det være mulig at vedvarende svakt lag blir påvirket og løsner.

Mildværsgrensen stiger utover dagen. Det kan løsne våte løssnøskred i bratte fjellsider. Nysnø som blir våt for første gang er mest ustabil.
Avalanche danger scale Important information for ski touring
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