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Avalanche warning for region Sør-Troms Monday 22.04.2019

Danger level 3 - Considerable avalanche danger

Published:
A very complex situation is at hand. Unstable wind slabs will be present in the Alpine. Rain will weaken the snowpack also at higher elevations in the afternoon. The old persistent weak layer may still be triggered after being weakened by the last days rain events.

Avalanche problems

Wet snow (loose snow avalanches)

You can easily trigger avalanches on some steep slopes. Avalanches can get large enough to bury or even kill you (size 2).

Loose snow

Wind drifted snow (slab avalanches)

You can trigger avalanches on some steep slopes. Avalanches can get large enough to bury a car or destroy a small house (size 3).

Poor bonding between layers in wind deposited snow

Wet snow (slab avalanches)

You can trigger avalanches on a few steep slopes. Avalanches can get large enough to bury a car or destroy a small house (size 3).

Buried weak layer of faceted snow above a crust
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Below you can see a description of the current snow cover information and current weather forecast in the mountains. If your observations deviate greatly from what is described here, the warning will not necessarily apply either. Always make your own judgments or stay away from avalanche terrain.

Snow cover (in Norwegian)

Sunday 21. April 2019

I helgen tok mildværet og varm vind skikkelig tak i snødekket. Opp til 7-900 moh er hele snødekket smelteomvandlet. Også høyere opp har fukten trengt langt ned og det meste av lagdelinger er fuktet, også de gamle vedvarende svake lag.
Det finnes fortsatt ustabile sjiktoverganger i fokksnøen i høyden.

Fra slutten av februar har vi et vedvarende svakt lag av kantkorn dypt i snødekket. Laget er trolig mest utbredt over 1000 moh.

I helgen ble det observert noen middels store våte snøskred.

Mountain weather

Sunday 21. April 2019

8 mm precipitation, up to 15 mm in the most exposed areas. Strong breeze from southwest. -1 °C to 3 °C at 700 m a.s.l. Cloudy.

Monday 22. April 2019

15 mm precipitation, up to 20 mm in the most exposed areas. Fresh breeze from southwest. -1 °C to 5 °C at 700 m a.s.l. Cloudy.

Advice

The bulletin is a planning tool and may differ from the actual situation. Always make your own evaluation. To be 100 % avalanche safe, avoid all avalanche terrain.

Avalanche risk assessment

Først på dagen vil det være fokksnø høyt til fjells som vil utgjøre det største skredproblemet, spesielt i leheng mot NØ. På grunn av mildt vær ventes dette å stabiliseres fort.
Om ettermiddagen ventes stigende temperatur og regn, noe som vil svekke snødekket ytterlige i høyden og øke skredfaren. Noen naturlig utløste skred kan forekomme. Det kan fortsatt være fare for enkelte naturlig utløste skred i kantkornlaget fra februar.
Avalanche danger scale Important information for ski touring
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