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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Tromsø Sunday 05.02.2023

Danger level 3 - Considerable avalanche danger

Published:
Generally unstable conditions. Natural avalanches can occur and you have to expect to trigger avalanches when venturing into steeper terrain. A persistent weak layer buried in the snow can cause very large avalanc
Be aware that persistent weak layers can be triggered in areas where the snowpack is thin or at tree line.
  • The danger is greatest from Sunday before noon

Avalanche problems

Wind drifted snow (slab avalanches)

Avalanches may release spontaneously on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Buried weak layer of new 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 near the ground

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)

Saturday 4. February 2023

Snøfall tidligere i uka har gitt en del løssnø i terrenget. Vindøkning lørdag har trolig dannet fokksnø i overflaten utsatte steder. Kraftig vind søndag gjør at snøoverflaten vil være i endring.

Enkelte steder kan fokksnøen ligge over nedføyket overflaterim. I skogen og litt oppover i fjellet har fokksnøen lagt seg over et skarelag som ble dannet av mildvær 27.01.

Pga. kulde og høy temperaturgradient har det vært begynnende kantkorndannelse rundt skarelaget fra 27.01.

Det finnes også vedvarende svake lag av kantkorn dannet i november/desember stort sett nær bakken. Etter flere runder med kraftig vind de siste ukene ligger laget for det meste under hard fokksnø.

De siste dagene er det observert enkelte store skred, blant annet ved Tromsdalstind og tidligere på Kvaløya.

Mountain weather

Saturday 4. February 2023

4-6 mm precipitation. Precipitation as snow. Strong breeze from southwest, changing to fresh breeze from the southwest during the afternoon. -11 °C to -1 °C at 700 m a.s.l. Cloudy.

Sunday 5. February 2023

8 mm precipitation, up to 14 mm in the most exposed areas. Rain up to 300 m a.s.l Sunday night. Strong breeze from south, changing to moderate gale from the west during renoon. -5 °C to 1 °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

Det ventes snøfokk i fjellet på grunn av kraftig vind og litt nysnø. I områder som samler mye snø kan enkelte naturlig utløste skred forekomme. På grunn av et vedvarende svake lag i snødekket kan skred bli store.

En person må regne med å løse ut skred i bratt terreng.
Avalanche danger scale Important information for ski touring
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