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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Monday 30.12.2019

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 there.

Avalanche problems

Wind drifted snow (slab avalanches)

You can easily trigger avalanches on many 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 beneath a crust

Wet snow (slab avalanches)

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

Water pooling in/above snow layers
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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)

Sunday 29. December 2019

Det har vore sterk vind, med mildvêr og regn opp i 1800 moh siste døgnet. I områder nedbøren har kome som snø har den lagt seg nord austlege leheng.

Kantkornlag er observert i snødekket.

Mountain weather

Sunday 29. December 2019

10 mm precipitation, up to 20 mm in the most exposed areas. Moderate gale from southwest. -3 °C to 3 °C at 1400 m a.s.l. Partly cloudy.

Monday 30. December 2019

10 mm precipitation, up to 30 mm in the most exposed areas. Moderate gale from west, changing to moderate gale from the northwest during the evening. -6 °C to 1 °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

Kraftig vind frå vest og stadvis mykje ny nedbør vil gje stor snøtransport til austlege leheng. Her vil ein få auka pålagring og ferske fokksnøflak.

Stadvis ligg det svakt lag kantkorn i snødekket i høgda.

Der nedbøren kjem som regn på snødekket kan ein forvente våte skred.
Avalanche danger scale Important information for ski touring
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