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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Helgeland Sunday 27.02.2022

Danger level 3 - Considerable avalanche danger

Published:
Increasing risk of avalanches due to warm weather, precipitation and strong winds. Some natural avalanches are expected. The persistent weak layers of surface hoar and facets are expected to be wetted and cause avalanches.

Avalanche problems

Wind drifted snow (slab avalanches)

Avalanches may release spontaneously 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 (slab avalanches)

Avalanches may release spontaneously on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Water pooling in/above snow layers

Wet snow (slab avalanches)

Avalanches may release spontaneously on a few steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Buried weak layer of surface hoar

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 26. February 2022

Bygevær og sterk vind fra skiftende vindretninger de siste dagene gir vekslende snøoverflate. Fokksnø kan ha blitt flyttet til leheng i mange himmelretninger. Først på dagen lørdag vil ferskest fokksnøflak ligger i le for nordvestlig bygevær fredag, men dette vil endre seg utover kvelden.

Det er observert et aktivt vedvarende svakt av nedføyket overflaterim. Laget gir tydelige drønn ifra seg, men utbredelse er spredt.

Det finnes et svakt lag av kantkorn over skarelag fra januar. Stabilitetstest fra Vefsn 20. feb viser at laget har evne til bruddforplantning. Det er ikke observert faretegn knyttet til dette siden starten av februar. Observasjoner viser at laget ligger under fokksnø og generelt er vanskelig å påvirke.

Mountain weather

Saturday 26. February 2022

12 mm precipitation, up to 18 mm in the most exposed areas. Rain up to 500 m a.s.l during the evening. Breeze from southwest, changing to moderate gale from the south during the afternoon. -12 °C to -2 °C at 1100 m a.s.l. Cloudy.

Sunday 27. February 2022

6 mm precipitation, up to 15 mm in the most exposed areas. Rain up to 700 m a.s.l Sunday night. Moderate gale from southwest, changing to gale from the southwest during the afternoon. -5 °C to 0 °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

Skredsituasjonen er to-delt. Under mildværsgrensen ventes naturlig utløste våte skred. Men på grunn av relativt små nedbørmengder ventes kun små/mindre skred, men dog i alle himmelretninger. Tidligere observert rimlag og kantkorn lag ventes å kunne bli overlastet og/eller fuktet. Det vil føre til en del skredaktivitet, særlig under mildværsgrensen.

Over mildværsgrensen kan det danne seg større ustabile fokksnøflak i leområder. Her ventes det enkelte store naturlig utløste skred.

Avalanche danger scale Important information for ski touring
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