Jump to content

IFMGA guides in the Lyngen area: Join the daily online guide-meetings: guidemeeting.no

We recomend that all skiers download the free Varsom app on App Store or Google Play.

Read more about how to read and share observations on Varsom app and Regobs system | Varsom.no.

Ski touring in Norway - important information | Varsom.no

Debris avalanches, debris flows and slush slides warning yellow level for Telemark og Buskerud

2

Yellow level

Published: Valid: from 28.04.2019 07:00 to 29.04.2019 06:59
Next forecast before:
  • Danger ongoing: Saturday afternoon 27. Apr. 2019
  • Danger decrease: Sunday afternoon 28. Apr. 2019

Oppdatert informasjon -

Oppdatert info om flom- og jordskredfare kan leses på forsiden av varsom.no.

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 floods: A "flood" of water, soil and rocks in steep creeks. Surface runoff in steep terrain can cause streams to change regular flow patterns. Slush slides: A flow of waterlogged snow. These landslides can start in relatively flat terrain and seek towards streams and steep slopes. Along the watercourses in the flood areas: High discharge can lead to excavation of masses at the foot of slopes. Rapid lowering of water levels after flood can also cause local landslides.

Advice

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

The amount of water in the soil is significant. 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. 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. 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.