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Avalanche warning for region Indre Sogn Thursday 19.12.2019

Danger level 3 - Considerable avalanche danger

Published:
The snowpack is unstable. Avoid areas with wind-deposited snow. It is also possible to trigger avalanches in a persistant weak layer in old snow found in bowls and gullies.

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 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 near the ground

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 18. December 2019

Det finst laussnø i snøoverflata. Underliggande snø har vore utsatt for sterk vind i høgfjellet. I leområder ligg det mykje fokksnø, medan ryggar og toppar er avblåste. Hardheit på fokksnøflaka aukar med høgden. Det er lite snø i låglandet.

Det finst eit vedvarande svakt lag ved bakken. Opp til omlag 1000 moh har dette laget vore fukta

Tysdag vart det observert nokre naturleg utløyste laussnøskred av str. 1 i Sogndalsdalen.

Mountain weather

Wednesday 18. December 2019

1-3 mm precipitation. Breeze from west. -11 °C to -4 °C at 1400 m a.s.l. Partly cloudy.

Thursday 19. December 2019

10 mm precipitation, up to 20 mm in the most exposed areas. Moderate gale from southeast, changing to strong breeze from the southeast during the evening. -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

Nedbør og aukande vind, kombinert med at det finst tilgjengelg laussnø for vindtransport frå tidlegare vil føre til danning av fersk fokksnø i leområder. Temperaturstigning utover dagen kan føre til enkelte naturleg utløyste skred under mildversgrensa der ein får regn på snøen. Vedvarande svakt lag ved bakken er stort sett dekka av hard fokksnø, og det er kun få stader der det er mjukt og tynt nok til at skiløparar kan påverke det.
Avalanche danger scale Important information for ski touring
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