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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Sunday 06.01.2019

Danger level 3 - Considerable avalanche danger

Published:
Very difficult conditions. Heavy snowfall, rising temperatures and strong winds have dumped large amounts of new snow in the region. Avoid recently loaded slopes in the alpine as wind slabs are easy to trigger. A persistent weak layer is active in the snowpack and can be remotely triggered. Avalanches are expected.

Avalanche problems

Wind drifted snow (slab avalanches)

You can very 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 some 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

Persistent weak layer (slab avalanches)

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

Buried weak layer of surface hoar
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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)

Saturday 5. January 2019

Mildværet torsdag påvirket snødekket opptil ca 500 moh og etterlot seg et tynt skarelag på toppen, men det er fortsatt tørrsnø under skarelaget.

Vinden har over 500 moh flyttet store mengder snø i leheng mot N-SØ og snødekket er ujevnt fordelt.

Et rimlag fra straks før jul har vist seg å ligge igjen i skjermede områder, både over og under skoggrensen. Dette laget løser lett ut på stabilitetstester.

Fredag ble det observert et nytt lag med nedsnødd kantkorn under fokksnø som lett går til brudd i stabilitetstester. Laget ligger over mildværsgrensen.

Det er ikke meldt inn skredaktivitet siden skredet i Tamokdalen på torsdag.

Mountain weather

Saturday 5. January 2019

2-4 mm precipitation. Breeze from west, changing to fresh breeze from the west during the evening. -10 °C to -3 °C at 1100 m a.s.l. Partly cloudy.

Sunday 6. January 2019

8 mm precipitation, up to 18 mm in the most exposed areas. Fresh breeze from west, changing to strong breeze from the west during the afternoon. -5 °C to 0 °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

De store mengdene med fokksnø har trolig stabilisert seg noe, men det ventes en ny runde nysnø og vind. I høyfjellet ventes det kraftig vind og stor snøtransport. Dette øker faren for naturlig utløste skred.

Flere steder steder finnes det vedvarende svake lag av kantkorn som trolig kan kollapse under de nye mengdene med fokksnø.

Overflaterim fra jula er fortsatt aktivt i snødekket, men laget ligger trolig dypt og kun få steder. Men om laget trigges kan skredene bli store.

Stigende temperaturer øker faren for våte skred i lavlandet.

Situasjonen er svært kompleks og det anbefales å være konservativ i valg av terreng.
Avalanche danger scale Important information for ski touring
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