Bulletin d’avalanche

Sør-Troms

NVE
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Danger d’avalanche

All elevations
2 · Modéré
Périmé — ce bulletin a expiré 4 months ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Snow showers and strong winds over the weekend may have formed unstable wind slabs in leeward areas at higher elevations. Where fresh wind slabs have accumulated, small to medium-sized avalanches may still be easy to trigger today, although the slabs are expected to stabilize gradually. Use extra caution in southerly parts of the region that receive additional new snow and wind loading during the day.

If the sun breaks through between snow showers, it may weaken the fresh snow and lead to naturally released wet avalanches. This is particularly relevant in steep, sun-exposed terrain.

Problèmes avalancheux

  • Wind slab

    • Above 500 m

Avalanche Activity

Snow showers and strong winds over the weekend may have formed unstable wind slabs in leeward areas at higher elevations. Where fresh wind slabs have accumulated, small to medium-sized avalanches may still be easy to trigger today, although the slabs are expected to stabilize gradually. Use extra caution in southerly parts of the region that receive additional new snow and wind loading during the day. If the sun breaks through between snow showers, it may weaken the fresh snow and lead to naturally released wet avalanches. This is particularly relevant in steep, sun-exposed terrain.

Snøbyger og sterk vind gjennom helgen kan ha dannet ustabile fokksnøflak i leområder høyt til fjells. Der det har lagt seg ferske fokksnøflak, kan det være mulig å løse ut små til middels store skred også i dag, men disse flakene forventes å stabilisere seg gradvis. Utvis ekstra varsomhet i de sørlig deler av regionen som kan får ytterligere litt nysnø i dag.

Dersom sola bryter gjennom mellom snøbygene, kan den svekke den ferske nysnøen og føre til naturlig utløste våte skred. Dette gjelder særlig i bratt, solvendt terreng.

Snowpack Structure

Snøbygene siden lørdag har stedvis gitt et lag med nysnø i fjellet, samtidig som kraftig vind fra vest har omfordelt den. Denne fokksnøen har lagt seg oppå et eldre snødekke som er preget av mye mildvær og regn høyt til fjells. Snødekket på fredag besto hovedsakelig av våt til fuktig, smelteomvandlet snø.

Snøgrensen ligger mellom 150 og 400 moh, avhengig av himmelretning og hvor i regionen du befinner deg.

Tendency

Wind slabs from the past days are expected to have stabilised in most locations by now. However caution should be shown at high elevations in the where colder temperatures may slow down the stabilisation process. In these areas, human‑triggered wind slab avalanches may still be possible.

Scattered snow showers will continue tuesday, but precipitation amounts are expected to be too small to form new slabs of significance.

If the sun breaks through between snow showers, it may weaken the fresh snow and lead to naturally released wet avalanches. This is particularly relevant in steep, sun-exposed terrain.

Bulletin data: Norwegian Water Resources and Energy Directorate (NVE), varsom.no (NLOD)

Régions couvertes