Debris avalanches, debris flows and slush slides warning red level for deler av Sør- og Midt-Norge

4

Red level

Published: Valid: from 12.01.2022 07:00 to 13.01.2022 06:59
Next forecast before:
  • Danger increase: Wednesday morning 12. Jan. 2022
  • Danger decrease: Friday evening 14. Jan. 2022
  • Height: 0 - 2000 moh

Oppdatert informasjon -

Det oransje varselet er nedgradert til gult fare nivå for resten av fredagen, siden skredaktivteten nå er avtagende.
  • Oppdatert informasjon -
    For noen kommuner i sør og øst av varslingsområdet har varslet blitt nedgradert til grønt farenivå, siden det har kommet mindre regn i disse områdene enn ventet.
  • Oppdatert informasjon -
    Oransje varsel videreføres til fredag for store deler av varslingsområdet.
  • Oppdatert informasjon -
    Varselet ble oppgradert til rødt nivå for flere kommuner i Vestland Fylke på grunn av spesielt stor fare for sørpeskred.
Se alle oppdateringer

Consequence

Many landslides are expected, several with considerable consequences. Large slides may reach settlements, roads and railways. Along the watercourses in the flood areas high discharge can lead to erosion of masses at the foot of slopes. Rapid decline of water levels after flood can also cause local landslides. Debris flows may reach the valley bottom even if they are triggered high in the terrain.

Advice

Keep yourself updated about the development of the weather, the landslide and flood situation, and follow the weather radar. Keep away from steep slopes, as well as streams and rivers with high discharge. Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides. Contingency authorities must be prepared for the fact that building and infrastructure in general may be subject to serious incidents.

Description

Many landslides are expected, several with considerable consequences. Large slides may reach settlements, roads and railways. Risk of slushflows is especially high in areas with more than 50 cm snow. Slushflows are triggered even in relatively gentle slopes, where water accumulates. Slushflows follow terrain depressions and may develop into debris flows. Steep slopes, as well as streams and rivers with high discharge, are particularly exposed for debris avalanches and debris flows. With the current forecast, certain parts of the region are more exposed. Details are found in the warning message in Norwegian. Heavy rain is expected. Relatively high temperatures and windy conditions causes significant snowmelting.