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Debris avalanches/shallow slides warning yellow level for parts of Trøndelag and Nordland

2

Yellow level

Published: Valid: from 03.01.2020 07:00 to 04.01.2020 06:59
Next forecast before:
  • Danger ongoing: Wednesday morning 1. Jan. 2020
  • Danger decrease: Saturday morning 4. Jan. 2020
  • Height: 0 - 600 moh

Oppdatert informasjon -

Steinkjer kommune har blitt inkludert i varselet
  • Oppdatert informasjon -
    Kommuner i Nordland og Troms har blitt inkludert i 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 flows: A "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Slush flows: 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. Keep water paths and culverts free of snow, ice, gravel, waste, twigs and leaves. Clogged waterways with dammed water may cause landslides. The landslide hazard is now generally minor. After a major flood event, until the water level is normal again, there is still a danger of local slides along rivers in the flood areas. 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

The soil is water-saturated. Steep slopes, as well as streams and river with high discharge, are particularly exposed. The issued warning is now in the lower part of the warning level.