Persistent weak layers
- Above 500 m
Sunshine, clear skies, and the Easter holidays can lead people to take more risks and plan bigger trips in the mountains. At the same time, sun and higher daytime temperatures increase the risk of cornice collapse and wet‑snow avalanches. The cornices are large and can trigger big avalanches when they break, sometimes activating weak layers deeper in the snow. Both natural and human‑triggered cornice falls have been observed this week. Keep a safe distance from cornices. At higher elevations, wind slabs and faceted snow may still be present in a few isolated areas.
Sunshine, clear skies, and the Easter holidays can lead people to take more risks and plan bigger trips in the mountains. At the same time, sun and higher daytime temperatures increase the risk of cornice collapse and wet‑snow avalanches. The cornices are large and can trigger big avalanches when they break, sometimes activating weak layers deeper in the snow. Both natural and human‑triggered cornice falls have been observed this week. Keep a safe distance from cornices. At higher elevations, wind slabs and faceted snow may still be present in a few isolated areas.
Sol, klarvær og påskeferie innbyr til fine turer i fjellet, men vær obs! Sol og stigende dagtemperaturer vil gjøre snøen i bratte, solvendte helninger myk og våt. Her kan det løsne skred av seg selv når solen er på sitt høyeste og dagen sitt varmeste. Vær ekstra oppmerksom på faren for skavlbrudd. Det er svært vanskelig å forutsi når skavler knekker - hold god avstand! Det er ikke utenkelig at skavlbrudd kan løse ut større skred på svake lag lenger ned i snødekket der det er tilstede. I høyden finnes fortsatt fokksnø og svake lag av kantkorn i isolerte områder.
På overflaten er det observert påbegynnende kantkorn dannelse. I lavlandet er det lite snø, mens over skoggrensen er det mange steder myke flak eller løssnø som ligger oppå fuktig smelteomvandlet snø eller hard fokksnø. Mye bra skiføre.
Det ligger et lag med kantkorn i snødekket. Utbredelse er usikkert, men særlig høyt til fjells vil de være enklere å finne.
Sunshine and clear skies can lead to more risk taking. At the same time, sun and higher daytime temperatures increase the risk of cornice collapse and wet‑snow avalanches.
The cornices are large and can trigger avalanches when they break, sometimes activating weak layers deeper in the snow. Both natural and human‑triggered cornice falls have been observed the past week. Keep a safe distance from cornices.
At higher elevations, wind slabs and faceted snow may still be present in a few isolated areas.
Bulletin data: Norwegian Water Resources and Energy Directorate (NVE), varsom.no (NLOD)