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Ski touring in Norway - important information | Varsom.no

Avalanche warning for region Trollheimen Saturday 16.02.2019

Danger level 2 - Moderate avalanche danger

Published:
The snowpack is still wet and unstable. Avoid potential release areas and runout areas for avalanches. It might be some spots with fresh wind deposited snow at high altitude.

Avalanche problems

Wet snow (slab avalanches)

You can easily 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

New snow (slab avalanches)

You can easily trigger avalanches on some steep slopes. Avalanches are relatively harmless to people, but can knock you off balance. Can be dangerous close to terrain traps. (size 1)

Buried weak layer of new snow

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)

Friday 15. February 2019

Mildvær har påvirket snøoverflaten til ca 1200-1400 moh. På de høyeste toppene vil det ligge ustabile fokksnøflak i leområder.

I kalde perioder i januar var det kantkornutvikling i snødekket. Det har tidligere også blitt observert nedføyket overflaterim, spesielt i vindskjerma område og i området rundt skoggrensa. Disse lagene er trolig mer eller mindre nøytralisert etter noen dager med mildvær, men dette er ikke bekreftet.

Mountain weather

Friday 15. February 2019

1-5 mm precipitation. Strong breeze from west, changing to gale from the southwest during the evening. -2 °C to 4 °C at 1400 m a.s.l. Cloudy.

Saturday 16. February 2019

5 mm precipitation, up to 10 mm in the most exposed areas. Moderate gale from southwest, changing to breeze from the north during renoon. -8 °C to -1 °C at 1400 m a.s.l. Partly 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

Litt lavere temperatur vil stabilisere snødekket der våt snø fryser til og sannsynligheten for våte skred blir lavere enn foregående dager. Det kan forsatt gå enkelte våte skred, det er vanskelig å forutsi når vannet trenger ned til det vedvarende svake laget og/eller gjør flaket over mykt nok til at skred løsner.
I høyfjellet hvor vil nedbøren komme som snø, det vil danne seg ferske fokksnøflak i leheng, mest utsatt er heng mot N-NØ-Ø, men skiftende vind vil føre til at flere himmelretninger kan bli utsatt.
Avalanche danger scale Important information for ski touring
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