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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Jotunheimen Friday 21.01.2022

Danger level 3 - Considerable avalanche danger

Published:
Wet avalanches can release naturally due to temperature rise. Unstable conditions due to wind slabs around the treeline and lee areas in the alpine. Persistent weak layers may also be triggered where the snow cover is thin.

Avalanche problems

Wet snow (slab avalanches)

Avalanches may release spontaneously on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Water pooling in/above snow layers

Wind drifted snow (slab avalanches)

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

Poor bonding between layers in wind deposited snow

Persistent weak layer (slab avalanches)

You can trigger avalanches on a few steep slopes. Avalanches can get large enough to bury a large truck or destroy several houses (size 4).

Buried weak layer of faceted snow above a crust
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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 20. January 2022

Over skoggrensa finnes det store fokksnøflak i øst- og sørvendte leområder. Vindutsatte plasser er avblåst og regionen er preget av lite snø for årstiden. Det ligger relativt mye vindtransportert snø rundt skoggrensa. Under siste fokksnø er det gamle snødekket hardt og stabilt opp til ca. 1200-1300 moh, etter at Gyda herjet.

Før Gyda fantes det vedvarende svake lag av kantkorn under skare og langs bakken. I høyfjellet er disse lagene sannsynligvis fortsatt aktive. Observerte drønn og nylig skredaktivitet stammer mest sannsynlig fra vedvarende svake lag.

Ved Tyinkrysset ble det torsdag observert et naturlig utløst str. 2 skred i østvendt terreng.

Mountain weather

Thursday 20. January 2022

5 mm precipitation, up to 15 mm in the most exposed areas. Precipitation as snow. Gale from northwest, changing to moderate gale from the northwest during the afternoon. -16 °C to -11 °C at 1800 m a.s.l. Cloudy.

Friday 21. January 2022

1 mm precipitation, up to 6 mm in the most exposed areas. Rain up to 1000 m a.s.l during the afternoon. Moderate gale from northwest, changing to fresh breeze from the west during the afternoon. -12 °C to -4 °C at 1800 m a.s.l. 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

Mildvær og noe regn kan føre til at våte skred løsner av seg selv under mildværsgrensa. I isolerte leområder i høyfjellet finnes fokksnø som må betraktes som ustabil og kan påvirkes av skiløpere. Vær oppmerksom i nærheten av skoggrensa, her er flakene mykere og vil være lettere å påvirke.
Avalanche danger scale Important information for ski touring
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