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Avalanche warning for region Hardanger Thursday 05.04.2018

Danger level 3 - Considerable avalanche danger

Published:
Snowfall, increased wind and lower temperatures will give wind slabs above 600 moh. Increased temperatures on wednesday affected the snow cover up to 1000 moh, but above this there can be persistent weak layers of faceted snow.

Avalanche problems

New snow (slab avalanches)

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

Buried weak layer of new snow

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 near surface

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 4. April 2018

Tirsdag og onsdag kom det varierande snømengder i regionen, men oppimot 30 cm nysnø i nærleiken av Odda, 10-15 cm i nærleiken av Rosendal. Mildvær utover dagen onsdag påverka snødekket opptil ca. 1000 moh, og nederst har snøen smelta vekk. Over 1000 moh har det truleg danna seg nysnøflak, hovudsakleg i nordleg sektor. Den nyaste snøen har sannsynlegvis lagt seg på kantkorn, som var observert i overflata før snøfallet.

Kantkornlag finst også lenger ned i snødekket. Slike lag går relativt lett til brot i stabilitetstestar.

Med nysnøen og mildværet onsdag har det gått fleire små, våte laussnøskred i kjende skredbander, blant anna Aurskred, nær Odda. Det er også observert slike skred frå Tveitanuten.

Mountain weather

Wednesday 4. April 2018

8-12 mm precipitation. Strong breeze from southwest, changing to breeze from the southwest during the evening. -9 °C to 0 °C at 1400 m a.s.l. Cloudy.

Thursday 5. April 2018

10 mm precipitation, up to 15 mm in the most exposed areas. Breeze from west, changing to strong breeze from the northwest during the afternoon. -10 °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

Meir snø, auka vind og kaldare temperaturar gjer at fokksnøflak framleis vil bygge seg opp. Det vil samle seg snø i leområder, hovedsakleg i sør og aust over mildværgrensa. Over ca. 1000 moh kan det vere vedvarande svake lag i snødekket, og om desse blir påverka kan det skred bli større sidan slike lag har betre evne til brotforplanting.
Avalanche danger scale Important information for ski touring
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