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Avalanche bulletin through Wednesday, 25 January 2017

Considerable avalanche danger will be encountered in some regions

Edition: 24.1., 17:00 Next update: 25.1., 18:00 Validity

Considerable avalanche danger will be encountered in some regions
Edition: 24.1.2017, 17:00 / Next update: 25.1.2017, 18:00
Snowpack
On the northern Alpine ridge, the southerly wind at the weekend gave rise to mostly small, hard snow drift accumulations in areas adjacent to ridgelines and pass areas. In some places they can still be released as avalanches.
In many places the snowpack contains weak layers. These are most prevalent on shady slopes between approximately 2000 m and 2800 m. In the regions with larger amounts of snow north of a line between the Rhone and Rhine, these weak layers are often embedded deep and can therefore release avalanches only in isolated cases. This applies in particular in areas where the snow cover is rather shallow. In southern Valais and in Grisons the weak layers are closer to the surface, which makes the release of avalanches more probable. In these regions remote triggering has been reported in recent days.
In northern Ticino the bonding of the snowpack is more favourable. In central and southern Ticino and in the Grisons southern valleys only a little snow is to be found.
Observed weather on Tuesday, 24.1.2017
The weather in the mountains was sunny.
Fresh snow
-
Temperature
At midday at 2000 m: between -5 °C in the north and -2 °C in the south
Wind
Light to moderate from the north and east
Weather forecast through Wednesday, 25.1.2017
The weather in the mountains will be sunny.
Fresh snow
-
Temperature
At midday at 2000 m: -1 °C in the north and -3 °C in the south
Wind
Light to moderate from the east to southeast
Outlook through Friday, 27.1.2017
Thursday will be sunny. Towards the evening a foehn wind will develop in the north. Friday will be cloudy at times in the west and south, otherwise quite sunny. It will remain dry.
The avalanche danger will not change significantly on Thursday. On Friday it may increase a little in the northern regions exposed to the foehn wind.