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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Wednesday 04.12.2019

Danger level 4 - High avalanche danger

Published:
Natural triggered avalanches are likely. Increasing danger level due to higher temperatures and percipitation as rain.

Avalanche problems

Wet snow (slab avalanches)

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

Water pooling in/above snow layers

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 beneath a crust

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
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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 3. December 2019

Kraftig vind og stort snøfall de siste dagene har ført mye snø inn mange leområder. Den kraftige vinden har gjort at snøen er ujevnt fordelt i terrenget.

Det gamle snødekket består av et skarelag og eldre fokksnø etter første snøfall tidlig i november.

Det er observert lag av kantkorn i snødekket både ved bakken og under et skarelag høyere i snødekket fra ca 500 moh og oppover. Lagene er trolig mest utviklet der snødekket har vært tynt.

Mountain weather

Tuesday 3. December 2019

10 mm precipitation, up to 15 mm in the most exposed areas. Breeze from south. -9 °C to -1 °C at 1100 m a.s.l. Cloudy.

Wednesday 4. December 2019

15 mm precipitation, up to 30 mm in the most exposed areas. Strong breeze from west, changing to gale from the southwest during the afternoon. -2 °C to 2 °C at 1100 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 nedbør som regn høyt til fjells vil svekke bindingene i snødekket og det kan forventes naturlig utløste våte skred.

Vær spesielt oppmerksom på at fuktigheten kan trenge ned til et svakt lag av kantkornet snø nede i snødekket, og skred som løsner på dette laget kan bli store.
Avalanche danger scale Important information for ski touring
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