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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Sør-Troms Thursday 19.03.2020

Danger level 2 - Moderate avalanche danger

Published:
Locally unstable conditions. A skier or a snow mobile may trigger avalanches in the fresh wind slabs, while persistent weak layers deeper in the snow in general is hard to trigger.

Avalanche problems

Wind drifted snow (slab avalanches)

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

Buried weak layer of new snow

Persistent weak layer (slab avalanches)

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

Buried weak layer of faceted snow beneath a crust

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 18. March 2020

Fra skoggrensen og oppover har sterk vind de siste dagene satt sitt preg på snøoverflaten. Snøen er vindpakket og utsatte formasjoner er avblåst.

Det er et porøst skarelag fra mildværet 9/3 opp til ca. 600 moh.

Gammelt snødekke består i stor grad av ulike skarelag og smelteomvandlet snø.

Det er observert begynnende kantkorndannelse under skarelag fra mildværet 9/3. Hvor høyt dette skarelaget finnes er usikkert, men i hvert fall opp til ca. 600 moh enkelte steder.

Tirsdag ble det observert drønn.

Mountain weather

Wednesday 18. March 2020

10 mm precipitation, up to 18 mm in the most exposed areas. Fresh breeze from southwest, changing to strong breeze from the northeast during the afternoon. -7 °C to 0 °C at 700 m a.s.l. Cloudy.

Thursday 19. March 2020

3-7 mm precipitation. Breeze from northwest. -11 °C to -5 °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

Vind tidlig på dagen sammen med et lite påfyll av nysnø vil gjøre at det legger seg opp ferske fokksnøflak i leområder, spesielt i høyden.

Utover dagen roer vinden seg noe. Fokksnøflakene trenger litt tid på å stabilisere seg, spesielt i høyden der kalde temperaturer gjør at prosessene i snøen går langsomt.

Det er observert et lag av kantkorn under skarelag fra 9/3. Det er observert drønn i laget, men det er trolig vanskelig å påvirke.
Avalanche danger scale Important information for ski touring
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