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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Wednesday 25.04.2018

Danger level 2 - Moderate avalanche danger

Published:
Wind slabs can be present in lee areas in the north and east aspect. Persistent weak layers are present above 1000 masl, but is difficult to trigger.

Avalanche problems

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 near surface

New snow (slab avalanches)

You can easily trigger avalanches on a few 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)

Tuesday 24. April 2018

Mildvær har nådd heilt til dei høgaste fjelltoppane. Snøoverflata består i hovudsak av fast smelteomdanna snø, men det kan vere noko vindpåverka nysnø over ca. 500 moh. I sørvendte sider og i andre himmelretningar under 1000 moh er det ikkje lagdeling i snøen.

Der det er lagdeling finst det kantkornlag.

Det er ikkje registrert skredaktivitet dei siste dagane, men det var observert drønn i snødekket i Storlidalen fredag.

Mountain weather

Tuesday 24. April 2018

2-5 mm precipitation. Strong breeze from southwest. -4 °C to 1 °C at 1400 m a.s.l. Partly cloudy.

Wednesday 25. April 2018

2-5 mm precipitation. Strong breeze from west, changing to breeze from the west during the afternoon. -7 °C to -1 °C at 1400 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

Kaldare temperaturar er gunstig for stabilisering av snødekket, og faren for våte skred er liten. Det kan vere nysnøflak i leområder mot aust og nord, men desse vil truleg vere relativt små og ha bunde seg godt til den underliggande snøen. Det er kun der det har føyka inn mest snø at dette vil vere eit skredproblem. Det finnast framleis kantkornlag i snødekket, men det skal mykje til for å påverke desse.
Avalanche danger scale Important information for ski touring
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