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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Indre Troms Thursday 15.04.2021

Danger level 3 - Considerable avalanche danger

Published:
It’s a complex snowcover with several avalanche problems. Avalanches can be triggered in wind slabs where precipitation comes as snow. In lower altitudes, where it rains, wet avalanches are likely. It is uncertain if persistent weak layers will be triggered by the weather, but if they do, big avalanches can occur.

Avalanche problems

Wind drifted snow (slab 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

Wet snow (loose snow avalanches)

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

Loose 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 beneath 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)

Wednesday 14. April 2021

Onsdag og torsdag er det bygevêr med sterk vind, noko som vil påverke snødekket. Truleg er det vindpåverka snø relativt langt ned, og utover dagen vil det bli fuktig snø under mildværsgrensa.

Det finnast fleire vedvarande svake lag i snødekket. Det er både eldre kantkornlag frå januar som ligg djupt i snødekket, men det finnast også høgare oppe, som kan vere danna etter det siste mildværet. Generelt skal det ein del til for å påverke desse laga.

I Tamokdalen har det gått fleire store og svært store skred den siste tida, sist førre onsdag.

Mountain weather

Wednesday 14. April 2021

10 mm precipitation, up to 15 mm in the most exposed areas. Moderate gale from west, changing to fresh breeze from the southwest during the afternoon. -10 °C to -5 °C at 1100 m a.s.l. Partly cloudy.

Thursday 15. April 2021

8 mm precipitation, up to 20 mm in the most exposed areas. Moderate gale from southwest, changing to strong breeze from the southwest during the afternoon. -6 °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

Det er eit komplekst snødekke og det vil vere fleire ulike skredproblem med meldt vêr. Over mildvêrsgrensa kan flakskred vere lette å løyse ut eller gå naturleg i nyleg vindtransportert snø.
Under mildvêrsgrensa kan det gå våte laussnø- og flakskred. I tillegg er det vedvarande svake lag i snødekket. Om nedbøren og temperaturstigninga er nok til å påverke desse er uvisst, men om det er tilfelle, kan det gå store skred.
Avalanche danger scale Important information for ski touring
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