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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Tuesday 25.02.2020

Danger level 3 - Considerable 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.

Avalanche problems

Wind drifted 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 or even kill you (size 2).

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)

Monday 24. February 2020

Mandag kom det store mengder nysnø sammen med vind fra NV.

Snøoverflaten er vindpåvirket over tregrensa, med fokksnø av varierende hardhet. Vindutsatte formasjoner er stedvis avblåst til hard skare. Under tregrensa for det meste løs ubunden snø, men stedvis noe vindpåvirket.

Gammelt snødekke består for det meste av fokksnø av varierende hardhet.


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

På søndag gikk det et middels stort personutløst flaksskred ved Istindan.

Mandag ble det observert ferske sprekker.

Mountain weather

Monday 24. February 2020

15 mm precipitation, up to 25 mm in the most exposed areas. Moderate gale from northwest, changing to fresh breeze from the west during the afternoon. -14 °C to -5 °C at 1100 m a.s.l. Cloudy.

Tuesday 25. February 2020

2-4 mm precipitation. Breeze from south. -16 °C to -11 °C at 1100 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

Fokksnøflakene vil stabiliseres gradvis, men prosessen går sakte grunnet lave temperaturer og det vil fortsatt kunne gå skred på disse.

Kantkornlag finnes i store deler av regionen, men virker foreløpig å være vanskelig å påvirke. Utvis varsomhet i overganger mellom tynt og tykt snødekke, og der overliggende snø er myk.
Avalanche danger scale Important information for ski touring
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