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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Vest-Finnmark Saturday 29.12.2018

Danger level 3 - Considerable avalanche danger

Published:
A swift low-pressure system will cause heavy snow showers and strong winds. Surface hoars may linger in isolated features and can prove to be active. A persistent weak layer has formed under a melt/freeze crust layer, but it has yet to prove reactive. The forecast is primarily valid for outer parts of the region.

Avalanche problems

Wind drifted snow (slab avalanches)

You can easily trigger avalanches on many steep slopes. Avalanches can get large enough to bury a car or destroy a small house (size 3).

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)

Friday 28. December 2018

De siste dagene er det kommet en god del nysnø i kombinasjon med kraftig vind, særlig i ytre deler.

Det er store regionale forskjeller i mengde og fordeling, mest snø ligger det i ytre strøk mot Langfjorden.

Det gamle snødekket er stort sett hardt og tynt, men med mykere flak i beskyttede leformasjoner.

Snødekket har skarelag opp til ca. 600-700 moh.

Kulde og klarvær har før snøfallet dannet kantkorn under skarelag i høyden mellom 300-700 moh.

Det ligger stedvis mye løs snø tilgjengelig for vindtransport.

Mountain weather

Friday 28. December 2018

3 mm precipitation, up to 8 mm in the most exposed areas. Strong breeze from southeast, changing to moderate gale from the west during the afternoon. -11 °C to -4 °C at 1100 m a.s.l. Partly cloudy.

Saturday 29. December 2018

10 mm precipitation, up to 18 mm in the most exposed areas. Fresh breeze from southwest, changing to moderate gale from the northeast during the afternoon. -13 °C to -5 °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

Skredfaren ventes å øke noe med skikkelig storkuling og snøpeising ut på ettermiddag. Det ventes snøtransport som vil danne store ustabile områder med fokksnø og det er fare for noen naturlig utløste skred utsatte steder.

Stigende temperaturer gjør at snødekket i lavlandet blir fuktet.

Det er fortsatt usikkerthet rundt betydningen av det nedsnødde overflaterimet og tilstedeværelsen av kantkorn.
Avalanche danger scale Important information for ski touring
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