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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Sør-Troms Friday 09.03.2018

Danger level 2 - Moderate avalanche danger

Published:
Be careful in areas with fresh wind deposited snow. There may be pockets with a persistent weak layer beneath the wind depposited snow.

Avalanche problems

Wind drifted snow (slab avalanches)

You can trigger avalanches on a few 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 easily trigger avalanches on a few steep slopes. Avalanches can get large enough to bury or even kill you (size 2). Remote triggering is possible.

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)

Thursday 8. March 2018

I slutten av forrige uke kom det 5-10 cm nysnø. Mange steder har denne snøen blitt flyttet på av vind, men stedvis ligger det ca 5cm løs ubunden snø på overflaten.

Det finnes flere vedvarende svake lag av kantkorn nede i snødekket. De svake lagene er de fleste steder beskyttet av hard overliggende snø, eller de ligger under tynn skare uten flak over. Noen få steder kan ferske fokksnøflak ligge oppå den tynne skaren. I Lavangen ble det onsdag observert svakt lag av kantkorn som gikk lett til brudd i stabilitetstest under 20cm fokksnø.

Mountain weather

Thursday 8. March 2018

No precipitation. Fresh breeze from southeast. -21 °C to -12 °C at 1100 m a.s.l. Clear skies.

Friday 9. March 2018

No precipitation. Breeze from east. -20 °C to -14 °C at 1100 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

Stabilt og rolig vær medfører at fokksnøflak gradvis stabiliseres. Vær likevel obs på at det noen få steder kan finnes vedvarende svake lag av kantkorn under fokksnøflakene, og der dette finnes vil snøen være ustabil lenge.
Avalanche danger scale Important information for ski touring
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