Avalanche forecast

Indre Troms

NVE
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Avalanche danger

All elevations
2 · Moderate
Out of date — this forecast expired 3 months ago. You’re viewing past conditions, not the current bulletin.

Highlights

The avalanche danger varies significantly across the region and depends largely on local overnight temperatures. Where there has been no overnight freeze due to cloud cover, and mild temperatures extend high into the mountains, the avalanche danger will already be elevated in the morning. The combination of wet snow and strong sunshine further weakens the snowpack.

Wet loose avalanches are the most widespread avalanche problem, particularly in very steep, sun‑exposed terrain and below areas with exposed rock or cliffs. Most avalanches will be small, but medium‑sized avalanches may also occur. Remember that even small wet loose avalanches can be dangerous in steep and exposed terrain, as they consist of heavy, wet snow.

Be aware that wet slab avalanches and/or glide avalanches may also occur where meltwater accumulates on old crust layers deeper in the snowpack or in areas with smooth bedrock.

Avalanche problems

  • Wet snow

    • Above 700 m

Avalanche Activity

The avalanche danger varies significantly across the region and depends largely on local overnight temperatures. Where there has been no overnight freeze due to cloud cover, and mild temperatures extend high into the mountains, the avalanche danger will already be elevated in the morning. The combination of wet snow and strong sunshine further weakens the snowpack. Wet loose avalanches are the most widespread avalanche problem, particularly in very steep, sun‑exposed terrain and below areas with exposed rock or cliffs. Most avalanches will be small, but medium‑sized avalanches may also occur. Remember that even small wet loose avalanches can be dangerous in steep and exposed terrain, as they consist of heavy, wet snow. Be aware that wet slab avalanches and/or glide avalanches may also occur where meltwater accumulates on old crust layers deeper in the snowpack or in areas with smooth bedrock.

Skredfaren styres i stor grad av de lokale temperaturforholdene. Dersom det kommer nattefrost, kan snødekket få en kortvarig stabilisering, og skredfaren vil mange steder kunne oppleves som lav, spesielt tidlig på dagen. Når mildværet og sola får tak svekkes snødekket likevel raskt, og skredfaren øker tilsvarende.

Våte løssnøskred er det mest utbredte skredproblemet, særlig i svært bratt, solvendt terreng og under områder med bare steiner/klipper. De fleste skredene vil være små, men middels store skred kan også forekomme. Husk også at selv små våte løssnøskred kan være farlige i bratt og eksponert terreng, ettersom de består av tunge snømass­er.

Vær også oppmerksom på at enkelte våte flakskred og/eller glideskred kan forekomme der smeltevann samler seg på gamle skarelag dypere i snødekket eller på områder med svaberg.

Snowpack Structure

Snøoverflaten har et tydelig vårlig preg, og det har vært kraftig smelting den siste tiden. Sammenhengende snø finnes fra omtrent 400 moh og oppover, avhengig av hvor i regionen du befinner deg, med mest snø i nordvendt terreng og i indre strøk. Snødekket er i hovedsak smelteomvandlet. Likevel kan det fortsatt finnes noe lagdeling igjen i skyggesider og på de høyeste toppene. I høyfjellet og i skyggevendt terreng kan det fortsatt finnes lagdeling og enkelte eldre svake lag dypt i snødekket. Ved rask oppvarming, mye regn eller skavlbrudd kan store skred ikke utelukkes.

Tendency

Rain will further increase the water content in the snowpack, and wet avalanches may still release naturally in exposed areas.

Wet loose avalanches are the most likely avalanche problem. Most of these avalanches are expected to be small, but medium‑sized avalanches may also occur. Remember that even small avalanches can be dangerous in steep and exposed terrain, as they consist of heavy, dense snow.

At higher elevations, there is still layering in the snowpack. When meltwater penetrates downward, these layers can weaken and produce wet slab avalanches. Such avalanches are difficult to forecast and can be larger than typical loose‑snow avalanches. In addition, glide avalanches may occur where water accumulates above smooth bed surfaces such as rock slabs.

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

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