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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Saturday 29.12.2018

Danger level 3 - Considerable avalanche danger

Published:
Conditions are tricky. Be careful in lee areas with recently formed wind slabs. A persistent weak layer is present and remote triggering is possible.

Avalanche problems

Persistent weak layer (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). Remote triggering is possible.

Buried weak layer of faceted snow near surface

Persistent weak layer (slab avalanches)

You can very easily trigger avalanches on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2). Remote triggering is possible.

Buried weak layer of surface hoar
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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)

Friday 28. December 2018

De siste dagene er det kommet ca. 20 cm med nysnø, mest vest i regionen sammen med noe vind fra SV.

Det er generelt lite snø i terrenget under ca 7-800 moh og snøen i lavlandet under ca 400 moh er fuktig. Særlig sør i regionen.

Snøen er fortsatt ujevnt fordelt i terrenget.

Et lag av kantkorn har utviklet seg videre under skarelaget fra ca 600 moh og til topps. Laget er så langt ikke veldig aktivt.

Rimkrystaller ble observert på overflaten fra ca 100 moh til ca 600 moh. Utbredelsen noe større nord i regionen.

Mountain weather

Friday 28. December 2018

4 mm precipitation, up to 9 mm in the most exposed areas. Breeze from southeast, changing to fresh breeze from the southwest during renoon. -9 °C to -3 °C at 1100 m a.s.l. Partly cloudy.

Saturday 29. December 2018

12-16 mm precipitation. Fresh breeze from southwest, changing to moderate gale from the northwest during the afternoon. -11 °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

Nysnø i kompaniskap med vind danner ustabile fokksnøflak i leformasjoner som ligger oppå vedvarende svake lag av kantkorn. Over skoggrensen vil det lett kunne løses ut store skred. Merk at vinden snur i løpet av dagen og det vil bli ustabilt i nye leområder.

Under skoggrensen vil fokksnøen kunne legge seg på områder med overflaterim og være svært lette å løse ut.
Avalanche danger scale Important information for ski touring
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