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Avalanche warning for region Vest-Telemark Friday 24.01.2020

Danger level 2 - Moderate avalanche danger

Published:
Be careful in lee areas with wind deposited snow high in the mountains, typically behind ridges, ribs and in gullies. Especially where the wind deposited slabs are thin or soft, a slab avalanche is easier to trigger here.

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).

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)

Thursday 23. January 2020

Under ca 1200-1300 moh er snødekket påvirket av smelte/fryse-syklus etter mildvær mandag. Her ligger det skarelag ved overflaten, noen steder med ferske nysnøflak over. Flakene kan lokalt ha dårlig binding til skaren.
Over mildværsgrensa ligger det ferske fokksnøflak i Ø fjellsider med varierende fasthet.
Torsdag har temperaturen på ny steget med mildvær og regn/sludd opp til ca 1000-1100 moh.

Under det siste skarelaget er det fuktig snø flere steder etter mildværet. Ved kalde forhold kan dette vokse til kantkorn.

Mountain weather

Thursday 23. January 2020

4 mm precipitation, up to 10 mm in the most exposed areas. Moderate gale from west. -2 °C to 2 °C at 1100 m a.s.l. Partly cloudy.

Friday 24. January 2020

3 mm precipitation, up to 9 mm in the most exposed areas. Moderate gale from west. -5 °C to 1 °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

Fredag ventes lavere temperatur. Snøoverflaten som ble varmet opp torsdag, vil igjen fryse til og stabilisere den underliggende gamle fokksnøen.
Skredproblemet er knyttet til ferske fokksnøflak og skredfaren ventes å være økende med høyden der vinden er sterkest og det kommer mest nysnø.
Avalanche danger scale Important information for ski touring
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