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Avalanche bulletin through Tuesday, 23 January 2018

Very high avalanche danger will be encountered over a wide area

Edition: Mo. 22.01., 17:00 Next update: Tu. 23.01., 08:00 Validity

Avalanche bulletin through Tuesday, 23 January 2018

Very high avalanche danger will be encountered over a wide area

Edition Next update Validity

Avalanche bulletin through Tuesday, 23 January 2018

Very high avalanche danger will be encountered over a wide area

Edition Mo. 22.01., 17:00 Next update Tu. 23.01., 08:00 Validity

Avalanche bulletin through Tuesday, 23 January 2018

Very high avalanche danger will be encountered over a wide area

Edition Mo. 22.01., 17:00 Next update Tu. 23.01., 08:00 Validity

 
Level 1, low

Wet and full-depth avalanches

The snowpack is wet all the way through. In particular on extremely steep slopes individual full-depth avalanches and wet snow slides are possible. Apart from the danger of being buried, restraint should be exercised in view of the danger of avalanches sweeping people along and giving rise to falls.

see also snowpack and weather

Level 4, high

Fresh snow and snow drifts

Avalanche prone locations
In all aspects above approximately 2000m.

In all aspects above approximately 2000m.

Danger description

The fresh snow and snow drift accumulations are prone to triggering. Avalanches can be released easily. Medium-sized and, in isolated cases, large natural avalanches are to be expected. Exposed parts of transportation routes are endangered. Safety measures are to be maintained during the night.
With the end of the precipitation, the natural avalanche activity will appreciably decrease. Individual avalanches are however still possible. These can as before reach dangerously large size.
The conditions are unfavourable for snow sport activities outside marked and open pistes.

Wet and full-depth avalanches

As a consequence of the rain wet avalanches are to be expected. This applies in particular during the night. At any time full-depth avalanches are possible, including quite large ones. This applies in all aspects below approximately 2200 m.

see also snowpack and weather

Level 4, high

Fresh snow and snow drifts, old snow

Avalanche prone locations
In all aspects above approximately 2000m.

In all aspects above approximately 2000m.

Danger description

The danger exists primarily in alpine snow sports terrain. The fresh snow and snow drift accumulations are prone to triggering. Avalanches can be released very easily. Small and medium-sized natural avalanches are to be expected. They can penetrate deep layers and reach large size in isolated cases. Exposed parts of transportation routes can be endangered.
Snow sport activities outside marked and open pistes call for extensive experience in the assessment of avalanche danger and great restraint.

Full-depth avalanches

Full-depth avalanches are to be expected. This applies in all aspects below approximately 2200 m. Caution is to be exercised in areas with glide cracks.

see also snowpack and weather

Level 3, considerable

Fresh snow and snow drifts, old snow

Avalanche prone locations
In all aspects above approximately 1800m.

In all aspects above approximately 1800m.

Danger description

The fresh snow and snow drift accumulations of the last few days are in some cases prone to triggering. As a consequence of the northerly wind further snow drift accumulations will form. Avalanches can be released, even by a single winter sport participant. They can in isolated cases penetrate deep layers and reach dangerously large size. Snow sport activities outside marked and open pistes call for experience in the assessment of avalanche danger and caution.

Full-depth avalanches

Individual full-depth avalanches are possible. This applies in all aspects below approximately 2200 m. Caution is to be exercised in areas with glide cracks.

see also snowpack and weather

Level 3, considerable

Fresh snow and snow drifts

Avalanche prone locations
In all aspects above approximately 1800m.

In all aspects above approximately 1800m.

Danger description

The fresh snow and snow drift accumulations are in some cases still prone to triggering at elevated altitudes. Winter sport participants can release avalanches, including dangerously large ones. Ski touring and snowshoe hiking call for experience in the assessment of avalanche danger.

Wet and full-depth avalanches

As a consequence of the rain wet avalanches are to be expected. This applies in particular during the night. At any time full-depth avalanches are possible, including quite large ones. This applies in all aspects.

see also snowpack and weather

Level 5, very high

Fresh snow and snow drifts, old snow

Avalanche prone locations
In all aspects above approximately 2000m.

In all aspects above approximately 2000m.

Danger description

The fresh snow and snow drift accumulations are prone to triggering. Until late in the night a large number of natural avalanches are to be expected. They can be triggered in deep layers and reach very large size. The avalanches can reach a long way. Exposed settlements and transportation routes are endangered in the majority of cases. Extensive safety measures are to be maintained during the night.
With the end of the precipitation, the natural avalanche activity will appreciably decrease. Individual avalanches are however still possible. These can as before reach large size.
Without question, it is inadvisable to engage in snow sport activities outside marked and open pistes.

Wet and full-depth avalanches

As a consequence of the rain wet avalanches are to be expected. This applies in particular during the night. At any time full-depth avalanches are possible, including quite large ones. This applies in all aspects below approximately 2200 m.

see also snowpack and weather

“Snowpack and weather“ is currently being translated into English and will be published here at 6.00 pm.
The product is already available in German.
 

Your observations can improve the quality of the avalanche bulletin. We are very grateful for any reports and photos received.

Please report your observations of avalanches or alarm signs, or your estimation of the avalanche danger, or simply send us a picture illustrating the current situation. Your report from the field will be considered along with all the other information when we assess the avalanche danger. It is impossible, however, to reflect the exact content of each individual report in the avalanche bulletin.

The best way to file a report is by completing the interactive form on this page. If your report is to be used in the 5 pm avalanche bulletin, it should be submitted before 2:30 pm if possible. Reports received later will normally be given consideration in the next assessment.

Other reporting options:

“Snowpack and weather“ is currently being translated into English and will be published here at 6.00 pm.
The product is already available in German.

Latest avalanche bulletins

 

Have you observed alarm signs or an avalanche?

Your observations can improve the quality of the avalanche bulletin. We are very grateful for any reports and photos received.

 

More information about observations

Please report your observations of avalanches or alarm signs, or your estimation of the avalanche danger, or simply send us a picture illustrating the current situation. Your report from the field will be considered along with all the other information when we assess the avalanche danger. It is impossible, however, to reflect the exact content of each individual report in the avalanche bulletin.

The best way to file a report is by completing the interactive form on this page. If your report is to be used in the 5 pm avalanche bulletin, it should be submitted before 2:30 pm if possible. Reports received later will normally be given consideration in the next assessment.

Other reporting options:

 

No avalanche bulletins are being published at the moment. Nevertheless, you should still stay up to date with the avalanche situation in the mountains, especially if there is fresh snow.

However, the SLF will, by way of exception, also issue avalanche bulletins in the summer in case of heavy snowfall. There are different ways you can be notified when these bulletins based on the snow situation are published:

  • by push alert on SLF's free White Risk mobile app: appearing in four languages (English, German, French and Italian), this can be downloaded from iTunes App Store (for iPhones) or Google Play Store (for Android);
  • by mobile text message (SMS): please send an SMS with the message START SLF SOMMER to the phone number 9234 – you can cancel this service at any time by sending an SMS with the message STOP SLF SOMMER; cost: CHF 0.20 per SMS;
  • via an RSS feed which informs you whenever an avalanche bulletin is published.

Depending on the snow and avalanche situation, the regular publication of avalanche bulletin recommences in November/December.

Latest avalanche bulletins

 

Have you observed alarm signs or an avalanche?

Your observations can improve the quality of the avalanche bulletin. We are very grateful for any reports and photos received.

 

More information about observations

Please report your observations of avalanches or alarm signs, or your estimation of the avalanche danger, or simply send us a picture illustrating the current situation. Your report from the field will be considered along with all the other information when we assess the avalanche danger. It is impossible, however, to reflect the exact content of each individual report in the avalanche bulletin.

The best way to file a report is by completing the interactive form on this page. If your report is to be used in the 5 pm avalanche bulletin, it should be submitted before 2:30 pm if possible. Reports received later will normally be given consideration in the next assessment.

Other reporting options:

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