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Debris avalanches, debris flows and slush slides warning yellow level for parts of Østlandet, Telemark and Trøndelag

2

Yellow level

Published: Valid: from 07.05.2018 07:00 to 08.05.2018 06:59
Next forecast before:
  • Danger ongoing: Saturday morning 5. May. 2018
  • Height: 400 - 2000 moh

Oppdatert informasjon -

Deler av Østlandet og Telemark. Varselet er nedgradert fra gult til grønn da jordskredfaren antas å være over for denne gang.
  • Oppdatert informasjon -
    Kommuner i Trøndelag og noe kommuner i Telemark er tatt ut av varselet.
  • Oppdatert informasjon -
    Les oppdatert status på forsiden av varsom.no om flom og jordskredfare
  • Oppdatert informasjon -
    Les oppdatert status på forsiden av varsom.no om flom og jordskredfare
  • Oppdatert informasjon -
    Kommuner i Telemark er lagt til varselet.
Se alle oppdateringer

Consequence

Some landslides are expected. A few large events may occur. Exposed railways and roads may be closed. Debris avalanches/shallow slides: Soil slides and rapid movement of saturated soil in steep terrain. Debris floods: A "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Slush slides: A flow of waterlogged snow. These landslides can start in relatively flat terrain and seek towards streams and steep slopes.

Advice

Keep away from steep slopes, as well as streams and rivers with high discharge. Cleaning of drainage paths and culverts are recommended. Keep water paths and culverts free from snow, ice, sediments, waste, twigs and leaves.

Description

The amount of water in the soil is significant. Steep slopes, as well as streams and river with high discharge are particularly exposed. Risk of slush flows is especially high in areas with more than 30-50 cm snow. The snow may in some places be fully water-saturated. Areas with fresh snow are particularly exposed, since new snow may be saturated with water quickly. Slush flows are triggered even in gentle slopes, where water accumulates. Slush flows follow terrain depressions and may develop into debris flows.