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Debris avalanches and debris flows warning yellow level for deler av Agder og deler av Østlandet

2

Yellow level

Published: Valid: from 01.11.2021 07:00 to 02.11.2021 06:59
Next forecast before:
  • Danger ongoing: Monday morning 1. Nov. 2021
  • Danger decrease: Tuesday afternoon 2. Nov. 2021
  • Height: 0 - 1200 moh

Oppdatert informasjon -

Varselet for deler av Agder og deler av Østlandet er nedgradert for tirsdag 02.11 på grunn av mindre nedbør enn ventet.

Consequence

Some landslides are expected. A few large slides may occur. Exposed railways and roads may be closed. Debris avalanches/shallow slides are soil slides and rapid movement of saturated soil in steep terrain. Debris flows are a "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Debris flows may reach the valley bottom even if they are triggered high in the terrain.

Advice

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. Keep yourself updated about the development of the weather, the landslide and flood situation, and follow the weather radar.

Description

Steep slopes, as well as streams and rivers with high discharge, are particularly exposed. Rain is expected, followed by heavy showers in some places. The soil water content will increase due to snowmelt. This will increase the danger of (slushflows and) landslides and debris flows along rivers and streams, and in slopes where there is snowmelt. The amount of precipitation, or its location, is somewhat uncertain. Follow the weather radar. Some landslides are expected. A few large slides may occur. Exposed railways and roads may be closed.