Flood and landslide forecast

Debris avalanches, debris flows and slush slides warning yellow level for deler av Trøndelag, Nordland og sør i Troms (NVE)

Published: Valid: to 2021-02-28 06:59 AM Next forecast before:

Oppdatert informasjon - .

Det er inkludert flere kommuner sør i Troms og Finnmark fylke.

Oppdatert informasjon - .

Det er inkludert flere kommuner i Trøndelag i varselet.

Oppdatert informasjon - .

Det er inkludert noen kommuner i Trøndelag i varslet.

Type

Landslide

Some landslides are expected. A few large slides may occur. Exposed railways and roads may be closed. Risk of slushflows is especially high in areas with more than 50 cm snow. The snow may in some places be fully water-saturated. Slushflows are triggered even in relatively gentle slopes, where water accumulates. Slushflows follow terrain depressions and may develop into debris flows. Steep slopes, as well as streams and rivers with high discharge, are particularly exposed. Heavy snowmelt is expected. 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.
Danger increase Wednesday morning 24. Feb. 2021
Danger decrease Monday evening 1. Mar. 2021
Altitude 0 - 1200 masl
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. Slushflows are flows of watersaturated snow. These slides 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.
Warning level meaning Challenging situation which requires monitoring and may cause local damages. Yellow level is the lowest of our warning levels.

The warnings are valid from 07.00  - 07.00.

Map overview
Rain
Snowmelt

08.00-21.00 every day

Phone: +47 404 36 000

08.00 - 21.00 every day

Phone: +47 400 28 777