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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Voss Friday 24.03.2023

Danger level 2 - Moderate avalanche danger

Published:
I can be easy to trigger fresh wind slab in exposed places. There can be a persistent weak layer buried in the snow pack that can be triggered in a few places. The weak layer's sensitivity is, however, uncertain. Solar radiation may cause loose snow avalanches in areas with fresh snow.

Avalanche problems

New 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

Persistent weak layer (slab avalanches)

You can easily trigger avalanches on a few steep slopes. Avalanches can get large enough to bury a car or destroy a small house (size 3). Remote triggering is possible.

Buried weak layer of faceted snow near surface

New snow (loose snow avalanches)

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

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)

Thursday 23. March 2023

Mye nysnø og vind 16-17 mars ga store fokksnøflak mot nord og ellers ujevn snøfordeling mange steder. Vekslende døgntemperatur de siste dagene har gitt en bærende snøoverflate mange steder.

Slutten av februar og første del av mars hadde mye klart, kaldt vær. I den perioden ble det dannet svake lag av kantkorn mange steder og overflaterim noen steder. Disse lagene ligger nå delvis intakte under skarelag og fokksnø fra 16-17.mars. Det er usikkert hvor mye laget tåler nå etter flere runder med mildvær og regn påfulgt av gjenfrysing.

Mountain weather

Thursday 23. March 2023

12 mm precipitation, up to 25 mm in the most exposed areas. Rain up to 1000 m a.s.l during the afternoon. Fresh breeze from southwest, changing to breeze from the south during renoon. -3 °C to 1 °C at 1100 m a.s.l. Cloudy.

Friday 24. March 2023

3 mm precipitation, up to 10 mm in the most exposed areas. Rain up to 900 m a.s.l. Fresh breeze from southwest, changing to breeze from the west. -7 °C to 3 °C at 1100 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

I høyden kan det være lett å løse ut fokksnøflak på utsatte plasser som følge av mye nysnø og vind de siste dagene. Mest utsatt er ved rygger, skar og topper der vinden tar mest.
Om sola titter frem vil det gi fare for løssnøskred der den nye snøen ligger ubunden.

Det kan fortsatt være lett å løse ut store skred på vedvarende svake lag av kantkorn. Vær oppmerksom på at varmen kan svekke bindinger ned mot svake lag. Spesielt utsatt er konvekser (kuler) og overgang mellom tynt og tykt snødekke.
Avalanche danger scale Important information for ski touring
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