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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Thursday 12.03.2020

Danger level 2 - Moderate avalanche danger

Published:
Be careful in lee areas with wind deposited snow, typically behind ridges, ribs and in gullies. Especially where the wind deposited slabs are thin or soft, a slab avalanche is easier to trigger here. Persistent weak layers deeper in the snow are in general hard to trigger.

Avalanche problems

Wind drifted snow (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 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
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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)

Wednesday 11. March 2020

Opp til ca 500-600 moh ble snøoverflaten fuktet av mildværet mandag. Etter dette har det blitt litt kaldere med tilfrysing, og noen steder har fått litt nysnø. Høyere opp ligger det fokksnø av varierende hardhet. Vindutsatte formasjoner er stedvis avblåst til gammel mildværskare.

Det finnes et vedvarende svakt lag av kantkorn under skarelag fra 20/1. Det er kun funnet mellom 400-800 moh, og er generelt vanskelig å påvirke.

Mountain weather

Wednesday 11. March 2020

Little to no precipitation. Strong breeze from southeast, changing to fresh breeze from the southeast during the afternoon. -16 °C to -9 °C at 1100 m a.s.l. Cloudy.

Thursday 12. March 2020

3 mm precipitation, up to 8 mm in the most exposed areas. Breeze from east, changing to fresh breeze from the northeast during the evening. -12 °C to -6 °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

Roligere vær fører til en gradvis stabilisering av snødekket, men det kan fortsatt finnes ustabile fokksnøflak. Litt ny nedbør og vindøkning fra NØ om kvelden kan føre til at det dannes noen mindre nysnøflak i leheng.
Kantkornlag finnes i store deler av regionen, men har den siste tiden vært svært vanskelig å påvirke. Utvis likevel varsomhet i overganger mellom tynt og tykt snødekke, og om man er et stort turfølge eller kjører skuter.
Avalanche danger scale Important information for ski touring
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