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Avalanche warning for region Tromsø Friday 13.03.2020

Danger level 3 - Considerable avalanche danger

Published:
Be careful in lee areas with wind deposited snow, 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 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)

Friday 13. March 2020

Opp til ca 600 moh ble snøoverflaten fuktet av mildværet mandag. Etter dette har det blitt litt kaldere med tilfrysing, og noen steder har fått litt nysnø. Høyere opp ligger det fokksnø av varierende hardhet. Vindutsatte formasjoner er stedvis avblåst til gammel mildværskare.

Det finnes svake lag av kantkorn nede i snødekket, men disse ligger stort sett dypt og er vanskelige å påvirke.

Mountain weather

Thursday 12. March 2020

5 mm precipitation, up to 10 mm in the most exposed areas. Breeze from northeast, changing to gale from the northeast during the afternoon. -10 °C to -3 °C at 700 m a.s.l. Cloudy.

Friday 13. March 2020

8 mm precipitation, up to 20 mm in the most exposed areas. Strong breeze from northwest. -12 °C to -6 °C at 700 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

OPPDATERT fredag kl. 09:30: Bygevær kan føre til at det stedvis kommer mer nedbør enn tidligere antatt. I de delene av regionen hvor de kraftigste snøbygene kommer kan snøskredfaren øke til faregrad 3-betydelig. Her kan det være lett å løse ut middels store skred i mange heng.
Eldre fokksnøflak fra tidligere i uka gradvis vil gradvis stabiliseres, men lav temperatur gjør at stabiliseringen går saktere.
Avalanche danger scale Important information for ski touring
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