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Avalanche warning for region Sør-Troms Wednesday 05.01.2022

Danger level 3 - Considerable avalanche danger

Published:
The danger increases when the wind picks up. Avoid areas with wind deposited snow, typically behind ridges, ribs and in gullies. In addition, weak snow on or under a crust might be touchy where it lies high in the snow pack, and avalanches can be large taking out all snow that fell in the second half of December.

Avalanche problems

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).

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
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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 4. January 2022

I fjellet er snøoverflaten vindpreget med skare, harde fokksnøflak og avblåste partier. I godt skjermede områder(renner, boller etc) ligger det løsere snø også høyt til fjells.
I skogen der vinden ikke har hatt tak er snøen for det meste løs eller smelteomvandlet.

Det er observert et svakt lag av kantkorn rundt mildværsskare fra midten av desember. Dette laget er antageligvis mest utviklet der snødekket er relativt tynt og skare ligger nær overflaten.

Det er også observert isolert lommer med nedføyket overflaterim under stive fokksnøflak.

Natt til tirsdag gikk det flere naturlig utløste skred på Senja.

Mountain weather

Tuesday 4. January 2022

2-3 mm precipitation. Precipitation as snow. Fresh breeze from southeast, changing to breeze from the southeast during the evening. -13 °C to -6 °C at 700 m a.s.l. Partly cloudy.

Wednesday 5. January 2022

8 mm precipitation, up to 13 mm in the most exposed areas. Precipitation as snow. Breeze from southeast, changing to strong breeze from the northwest during renoon. -16 °C to -7 °C at 700 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

Skred kan løses ut både i fokksnø og på vedvarende svake lag. Det er lettest å løse ut skred der fokksnøen er myk. Skredfaren øker utover formiddag når vinden øker og faren er størst der det kommer mest snø.

Vær oppmerksom på at fokksnøen noen steder kan ha lagt seg oppå et vedvarende svakt lag av overflaterim eller kantkorn høyt i snødekket. Her vil flakene være mer ustabile enn ellers i terrenget. Dette skredproblemet har usikker utbredelse.


Avalanche danger scale Important information for ski touring
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