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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Helgeland Tuesday 20.12.2022

Danger level 3 - Considerable avalanche danger

Published:
Avoid leeward slopes, wind deposited snow is covering persistent weak layers. Beware of danger signs like shooting cracks and whumpf-sounds.

Avalanche problems

Persistent weak layer (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). Remote triggering is possible.

Buried weak layer of surface hoar

Wind drifted snow (slab avalanches)

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

Buried weak layer of new 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)

Monday 19. December 2022

Vind fra skiftende retning har ført til fokksnø av varierende hardhet i høyfjellet, med løs snø i terreng skjermet for vind og i lavlandet. Nysnømengdene varierer, og deler av regionen har fått rundt 30 cm nysnø de siste dagene.
Stedvis har det vært lite snø og dårlig såle under den siste snøen.

Observasjoner viser at overflaterim har føyket ned, er lett å påvirke og har god evne til bruddforplantning.

Mountain weather

Monday 19. December 2022

4-8 mm precipitation. Precipitation as snow. Strong breeze from west, changing to moderate gale from the east during the evening. -15 °C to -6 °C at 1100 m a.s.l. Cloudy.

Tuesday 20. December 2022

15 mm precipitation, up to 20 mm in the most exposed areas. Rain up to 700 m a.s.l during the evening. Moderate gale from southeast, changing to strong breeze from the south during the afternoon. -11 °C to -6 °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

Nysnø og vind gir mer ustabil fokksnø i leheng. Temperaturstigning vil bidra til et mer ustabilt snødekke, og det kan være svært lett å løse ut skred der fokksnø ligger over rim eller kantkorn. I formasjoner som har samlet mye snø siden forrige uke kan skred bli store.

Plussgrader i lavlandet vil i hovedsak bidra til at snøen setter seg.

Stedvis er det lite snø. Husk at små skred kan få store konsekvenser om du blir ført ut i områder med lite snø og oppstikkende stein.
Avalanche danger scale Important information for ski touring
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