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Debris avalanches/shallow slides warning yellow level for deler av Østlandet

2

Yellow level

Published: Valid: from 24.04.2023 07:00 to 25.04.2023 06:59
Next forecast before:
  • Danger ongoing: Monday afternoon 17. Apr. 2023
  • Height: 0 - 800 moh

Oppdatert informasjon -

Oppgradert: Kommuner i Vestfold, Agder, Oslo og midtre deler av Viken. Nedgradert: Kommuner i Innlandet og nord i Viken.

Consequence

Landslides may be expected. Exposed railways and roads may be closed.

Advice

Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides. River erosion may trigger minor soil slips, which again may reduce the soil stability along the river. Be aware of such soil slips in areas mapped with quick clay, and areas with marine deposits. If such observations are made, do not hesitate to alert responsible municipal emergency staff at the local kommune.

Description

Steep slopes, as well as streams and rivers with high discharge, are particularly exposed. Groundwater and soil moisture are high and will increase due to snowmelt and expected rain, leading to increased danger of landslides.