The fresh snow and the wind slabs must be evaluated with care and prudence.
The fresh snow and the wind slabs must be evaluated with care and prudence above the tree line. Avalanches can in isolated cases release deeper layers of the snowpack and reach quite a large size. Weakly bonded old snow requires caution. These avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects. Caution is to be exercised in particular on steep shady slopes, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example.
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
Over a wide area 15 to 30 cm of snow, and even more in some localities, will fall until the afternoon above approximately 1700 m. Distinct weak layers exist in the bottom section of the snowpack in particular on steep shady slopes. This applies especially above approximately 2000 m. Outgoing longwave radiation during the night will be barely evident. Below approximately 1800 m: The old snowpack will be moist.
Tendency
Fresh wind slabs are in some cases still prone to triggering in particular on steep shady slopes. The avalanche danger will decrease gradually.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Persistent weak layer
2000m
The fresh snow and the wind slabs can be released easily.
The fresh snow and the sometimes deep wind slabs can be released easily above the tree line. Avalanches can in isolated cases release deeper layers of the snowpack and reach quite a large size. Weakly bonded old snow requires caution. These avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects. Caution is to be exercised in particular on steep shady slopes, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. As a consequence of warming during the day and solar radiation small and medium-sized natural avalanches are possible.
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
Over a wide area 15 to 30 cm of snow, and even more in some localities, will fall until the early morning above approximately 1700 m. Distinct weak layers exist in the bottom section of the snowpack in particular on steep shady slopes. This applies especially above approximately 2000 m. Outgoing longwave radiation during the night will be barely evident. Below approximately 1800 m: The old snowpack will be moist.
Tendency
Fresh wind slabs are in some cases still prone to triggering in particular on steep shady slopes. The avalanche danger will decrease gradually.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
The fresh snow and the wind slabs must be evaluated with care and prudence.
The fresh snow and the mostly small wind slabs must be evaluated with care and prudence. Avalanches can in isolated cases be released in the old snowpack and reach medium size on northwest, north and northeast facing slopes. As a consequence of warming during the day individual mostly small wet loose snow avalanches are possible.
Snowpack
dp.4: cold following warm / warm following cold dp.1: deep persistent weak layer
Shady slopes: Avalanche prone weak layers exist in the old snowpack on northwest, north and northeast facing slopes. This applies especially above the tree line.
Outgoing longwave radiation during the night will be reduced. The weather conditions during the course of the night gave rise to slight moistening of the snowpack.
In some localities in some regions 20 cm of snow, and even more in some localities, will fall during the night, especially above approximately 1800 m.
Tendency
Fresh wind slabs are in some cases still prone to triggering in particular on steep shady slopes. The avalanche danger will decrease gradually.
