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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Hallingdal Saturday 31.03.2018

Danger level 2 - Moderate avalanche danger

Published:
Persistent weak layers are a problem at high elevations. Wet avalanches can release in steep terrain in lower areas because of sun and high temperatures.

Avalanche problems

Persistent weak layer (slab avalanches)

You can 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 faceted snow above a crust

Wet snow (loose snow avalanches)

You can very easily trigger avalanches on some steep slopes. Avalanches are relatively harmless to people, but can knock you off balance. Can be dangerous close to terrain traps. (size 1)

Loose 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)

Friday 30. March 2018

Snøoverflaten er stort sett vindpåvirket med myk eller hard fokksnø, samt skare, men det finnes stedvis også litt løs snø på overflaten. Solen har begynt å påvirke snøen og danne skarelag i solhellingene når det fryser til på natten.

Mindre områder med lommer av fokksnø. Diverse kantkornlag som ligger dypt eller under hard snøoverflate.

Torsdag ble det observert flere naturlig utløst harmløse våte løssnøskred i sørhellinger.

Kantkorn kan utvikles i toppen av snødekket, og bør følges med på.

Mountain weather

Friday 30. March 2018

No precipitation. Breeze from east. -18 °C to -10 °C at 1400 m a.s.l. Partly cloudy.

Saturday 31. March 2018

No precipitation. Calm/light breeze from southwest. -18 °C to -9 °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

Lite vind og kaldt vær endrer lite på skredfaren, det vil fortsatt vær mulig å påvirkes svake lag ved stor tilleggsbelastning der snødekket er tynt eller mykt.

I bratte, solvendte hellinger kan det utløses små, våte løssnøskred om ettermiddagen.
Avalanche danger scale Important information for ski touring
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