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Debris avalanches, debris flows and slush slides warning yellow level for Nordland og Troms

2

Yellow level

Published: Valid: from 24.02.2019 07:00 to 25.02.2019 06:59
Next forecast before:
  • Danger ongoing: Friday evening 22. Feb. 2019
  • Danger decrease: Monday early morning 25. Feb. 2019
  • Height: 0 - 800 moh

Oppdatert informasjon -

Noen kommuner nord i Troms som vurderes å være lite utsatt for jord-, sørpe og flomskred er fjernet fra varselet

Consequence

Some landslides are expected. A few large events may occur. Exposed railways and roads may be closed. Slush slides: A flow of waterlogged snow. These landslides can start in relatively flat terrain and seek towards streams and steep slopes. 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.

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.

Description

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 40 cm snow. The snow may in some places be fully water-saturated. Slush flows are triggered even in relatively gentle slopes, where water accumulates. Slush flows follow terrain depressions and may develop into debris flows.