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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Thursday 01.03.2018

Danger level 2 - Moderate avalanche danger

Published:
Avoid lee areas where a persistent weak layer can be hidden in the snow pack. Avalanches is triggered most easily where the snow pack is thin, typically close to ridges and on convex formations. 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 or even kill you (size 2). Remote triggering is possible.

Buried weak layer of surface hoar

Wind drifted 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).

Buried weak layer of new snow
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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 28. February 2018

Snøoverflata er vindpåverka etter vind tysdag 27.02
Det eldre snødekket er hardpakka av mykje vind i perioden før. I bratte sydsider har sola gitt våte skred.

Det vert observert skytande sprekkar på svakt lag av rim 28.02 Kalde netter har gitt vekst av overflaterim og kantkorn på og i det eldre snødekket.
Det er og eit djupt kantkornlag danna i forbindelse med skarelag frå 23.12.

Mountain weather

Wednesday 28. February 2018

No precipitation. Strong breeze from southeast, changing to moderate gale from the southeast during the afternoon. -25 °C to -12 °C at 1400 m a.s.l. Clear skies.

Thursday 1. March 2018

No precipitation. Fresh breeze from south. -25 °C to -10 °C at 1400 m a.s.l. Clear skies.

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

Svakt lag av nedføyka overflate rim viser seg å vere lett å påverke og har stor evne til brotforplantning. Fokksnøen frå 27.02 vil gradvis stabilisere seg, men låge temperaturar gjer at dette går sakte. Der denne snøen ligg på svakt lag av rim vil ikkje snødekket stabilisere seg nevneverdig før overflata vert så hard at det er vanskeleg å påverke det svake laget.
Avalanche danger scale Important information for ski touring
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