Lawinenlagebericht

Indre Sogn

NVE
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Lawinengefahr

All elevations
2 · Mässig
Veraltet — dieser Lagebericht ist 5 months ago abgelaufen. Du siehst vergangene Verhältnisse, nicht den aktuellen Bericht.

Kernpunkte

Be cautious in south-facing slopes when the sun starts to have a strong impact around midday. In these areas, a few naturally triggered wet loose snow avalanches may occur.

Older wind slabs at higher elevations are now expected to have stabilized. However, snow and wind later in the evening are expected to form fresh wind slabs, which may be easy to trigger. Avalanche danger is increasing.

The older faceted snow layer can still be triggered in some areas above 1300 meters, especially in transitions between thin and thick snow cover. Avalanches resulting from collapses in faceted layers can become large.

Maintain a safe distance from cornices in the high mountains, as these become unstable with rising temperatures or additional snow loading.

Lawinenprobleme

  • Persistent weak layers

    • Above 1,300 m

Avalanche Activity

Be cautious in south-facing slopes when the sun starts to have a strong impact around midday. In these areas, a few naturally triggered wet loose snow avalanches may occur. Older wind slabs at higher elevations are now expected to have stabilized. However, snow and wind later in the evening are expected to form fresh wind slabs, which may be easy to trigger. Avalanche danger is increasing. The older faceted snow layer can still be triggered in some areas above 1300 meters, especially in transitions between thin and thick snow cover. Avalanches resulting from collapses in faceted layers can become large. Maintain a safe distance from cornices in the high mountains, as these become unstable with rising temperatures or additional snow loading.

Vær forsiktig i sørvendte heng når sola begynner å ta godt midt på dagen. Der kan det gå enkelte naturlig utløste, våte løssnøskred.

Gamle fokksnøflak i høyden ventes nå å ha stabilisert seg. Men utover kvelden ventes det snø og vind som gjør at det vil danne seg ferske fokksnøflak som kan være lette å løse ut. Skredfaren er økende.

Det eldre kantkornlaget kan fortsatt påvirkes enkelte steder over 1300 moh. Eksempelvis i overganger mellom tynt og tykt snødekke. Skred som følge av kollaps i kantkornlag kan bli store.

Hold god avstand til skavler i høyfjellet. Disse blir ustabile med høye temperaturer eller pålagring av snø.

Snowpack Structure

Onsdag ble snødekket preget av mildvær og regn til minst 1200-1300 moh. Natt til torsdag ble det gradvis kjøligere og det snødde lenger ned før det gikk over til klarvær og frøys til. Vind fra vest i starten av uka har samlet mest snø i østvendte heng. Det er lite snø under 600 moh. Mildvær i midten av mars har trolig nøytralisert gamle vedvarende svake lag av kantkorn under ca. 1300 moh. Over denne høyden kan gamle vedvarende svake lag muligens påvirkes med stor tilleggsbelastning eller på tynt snødekke.

Tendency

Snow showers and westerly winds are causing wind-drifted snow to accumulate in east-facing slopes, which will be easy for a skier to trigger while the weather persists.

An old, faceted snow layer still exists deep in the snowpack in some areas above 1300 meters above sea level. However, it is buried under hard, compact layers of snow and is now expected to be very difficult to trigger. Avalanches caused by the collapse of this faceted layer, however, can become large.

Maintain a safe distance from cornices in the high mountains, as these become unstable with rising temperatures or additional snow loading.

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

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