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Debris avalanches and debris flows warning orange level for Troms samt Narvik og Evenes kommune.

3

Orange level

Published: Valid: from 21.09.2020 07:00 to 22.09.2020 06:59
Next forecast before:

Consequence

Many landslide events, some with considerable consequences. Major events may reach settlements, roads and railways. 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. Som shallow slides may be occur:Soil slides and rapid movement of saturated soil in steep terrain. Exposed railways and roads may be closed.

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. Municipalities, Counties and other emergency operators should continuously evaluate the need for preparedness and prevention measures.

Description

The soil is water-saturated. Steep slopes, as well as streams and river with high discharge, are particularly exposed. Debris flows may reach the valley bottom even if they are triggered high in the terrain.