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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Nord-Troms Saturday 09.12.2017

Danger level 2 - Moderate avalanche danger

Published:
Use caution on slopes recently loaded with wind slabs. Several layers of facets and surface hoar are persistent and widespread in the snow pack. These layers can be triggered by high additional loads and propagate into size 3 avalanches. 

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).

Poor bonding between layers in wind deposited snow

Persistent weak layer (slab avalanches)

You can trigger 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 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)

Friday 8. December 2017

De siste dagene har det kommet 5-20 cm nysnø, mest i ytre strøk. Over tregrensen ligger det fortsatt noe løssnø tilgjengelig for vindtransport, men mye av nysnøen er fraktet inn i leheng av vind fra SV-V.

Under nysnøen er det observert lag med kantkorn under skarelag flere steder i regionen. Torsdag ble det observert drønn i forbindelse med kantkornlaget.

Det er ikke observert skredaktivitet de siste dagene.

Det er store variasjoner på snømengde i regionen med mest snø i kystnære områder. I indre områder er det forholdsvis lite snø.

Mountain weather

Friday 8. December 2017

5 mm precipitation, up to 10 mm in the most exposed areas. Strong gale from southeast. -16 °C to -10 °C at 1100 m a.s.l. Cloudy.

Saturday 9. December 2017

0 mm precipitation, up to 5 mm in the most exposed areas. Moderate gale from southeast. -14 °C to -7 °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

Forsatt en del vind fra SØ, men det antas at mesteparten av snøen flyttet på seg på fredag. Fokksnøen vil gradvis stabilisere seg, slik at skredfaren ventes å avta mot faregrad 2-moderat. Bærende flak vil beskytte vedvarende svake lag, men disse kan fortsatt trigges enkelte steder og skredene kan da bli relativt store.
Avalanche danger scale Important information for ski touring
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