Bernese Oberland
Adelboden
Avalanche Problems
No distinct problem
1
Field notes
SLF uses this label when no single problem dominates the assessment, often on lower-danger days. It doesn't mean conditions are safe: any avalanche type is still possible, and normal caution applies. On stable days this is usually a signal to enjoy the mountains with general awareness; on less-stable days where the assessment is still inconclusive, it's a signal to be cautious specifically because there's no clear pattern to follow.
Snowpack & Weather
Snowpack
On the northern flank of the Alps, the new and drifted snow of the last few days cover, at higher altitudes on shaded, wind-sheltered slopes an often faceted and therefore weak old snow surface. Elsewhere, the snow surface has often been shaped by the wind and is frequently frozen solid below 2400 m.
In western and northern Lower Valais, the Snow deposited on the ground in a multiplicity of layers.EAWS glossary structure is relatively favourable and the danger comes mainly down to the fresh drifted snow.
In other regions, the Snow deposited on the ground in a multiplicity of layers.EAWS glossary is thin and weak, and mostly consists of Snow grains, solid, with multiple flat glassy faces and sharp edges. Developed from faceting metamorphism, usually poorly bonded to one another (fewer contact points), a critical factor in avalanches if a faceted layer is covered with bonded snow. Typical grain size: 0.5 to 3 mm See also: www.snowcrystals.itEAWS glossary with embedded crusts. Snowdrift accumulations deposited on top of this snowpack are in some cases easily triggerable. In addition, individual avalanches may still be triggered in the near-ground Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary, especially on the Main Alpine Ridge in Upper Valais and on the central part of the southern flank of the Alps.
Weather review for Monday
It was sunny but cold in the mountains.
Fresh snow
-
Temperature
At midday at 2000 m, around -10°C
Wind
Light to moderate from westerly directions
Weather forecast to Tuesday
In the mountains conditions will be sunny but cold.
Fresh snow
-
Temperature
At midday at 2000 m, around -13 °C in the north and -9 °C in the south
Wind
Light to moderate from northerly directions
Outlook to Thursday
Wednesday
It will be sunny and cold. In the afternoon, there will be a moderate northwesterly wind at high altitudes.
The avalanche danger will decrease, but only slowly due to the often unfavourable Snow deposited on the ground in a multiplicity of layers.EAWS glossary structure.
Thursday
With strong to storm-force northwesterly winds, it will be partly sunny in the south, while elsewhere it will be very cloudy with snowfall down to the lowlands. In the north and west, 10 to 20 cm of snow is expected to fall, but the amounts are still uncertain.
New snow and drifted snow will be deposited on an often weak Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary. The avalanche danger will increase, especially in the west and north.