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Avalanche bulletin through Friday, 24 May 2019

Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.

Edition: We. 22.05., 17:00 Next update: Fr. 24.05., 18:00 Validity

Avalanche bulletin through Friday, 24 May 2019

Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.

Edition We. 22.05., 17:00 Next update Fr. 24.05., 18:00 Validity

Avalanche bulletin through Friday, 24 May 2019

Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.

Edition We. 22.05., 17:00 Next update Fr. 24.05., 18:00 Validity

Avalanche bulletin through Friday, 24 May 2019

Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.

Edition We. 22.05., 17:00 Next update Fr. 24.05., 18:00 Validity

 
Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.
Edition: 22.5.2019, 17:00 / Next update: 24.5.2019, 18:00
Avalanche danger
Central and eastern sectors of the northern flank of the Alps, Grisons not including the southern valleys:
The avalanche prone locations for dry-snow avalanches are located on steep west-facing to north-facing to east-facing slopes above approximately 2600 m more than anywhere else. Fresh snow and freshly generated snowdrifts from the last few days are still prone to triggering in those regions. Avalanches can be easily triggered in isolated cases and, particularly on the northern flank of the Alps and in northern Grisons, grow to large size. On Friday, the danger of dry-snow avalanches is expected to decrease.
Following nights of clear skies, the avalanche situation for wet-snow avalanches is quite favourable in the early morning hours of each day. As a consequence of solar radiation and rising daytime temperatures, increasingly frequent wet-snow avalanches can be expected during the course of the day. This applies to south-facing slopes up as far as the high alpine regions and to north-facing slopes below approximately 2600 m. On Thursday in particular, numerous moist-snow avalanches can be expected to release from the fresh snow. Wet-snow avalanches can grow to large size in some places.
Tours in outlying terrain away from secured and marked ski runs require experience in the evaluation of avalanche dangers on-site and should be brought to a close early in the day.
Western sector of the northern flank of the Alps, Valais, southern flank of the Alps:
Following nights of clear skies, the avalanche situation during the morning hours is favourable for the most part. Avalanche prone locations for dry-snow avalanches are found on very steep north-facing slopes above 2800 m more than anywhere else. The layers close to the upper surface of the snowpack are still prone to triggering in some places of those regions. On the southern flank of the Alps, these avalanche prone locations occur more seldom.
The danger of wet-snow avalanches increases during each day as a consequence of solar radiation and daytime warming. This applies particularly to south-facing slopes as far up as the high alpine regions and on north-facing slopes below approximately 2800 m.
Backcountry tours require a prudent route selection and should be terminated early in the day.
Snow and weather
Snowpack
At high altitudes there is significantly more snow than is customary for this juncture of the season.
The fresh snow of the last few days is still prone to triggering in some places at high altitudes, but is stabilising to an increasing degree.
The snowpack on north-facing slopes below approximately 2600 m, on south-facing slopes up as far as the high alpine regions, is thoroughly wet. As a consequence of solar radiation and rising daytime temperatures, the extent of snowpack wetness increases ongoingly. During the course of each day, wet-snow avalanches can be expected.
Weather review to Wednesday, 22 May
Nighttime skies in the western and southern regions were partly clear, in the eastern region the snowfall continued above approximately 2000 m. During the daytime it was partly sunny in the western and southern regions, in the eastern regions skies were overcast. Winds were blowing at light to moderate strength from northerly directions. Between Sunday afternoon and Wednesday afternoon, the following amounts of fresh snow were registered above 2500 m:
  • northern regions of the western and central sectors of the northern flank of the Alps, eastern sector of the northern flank of the Alps, Lower Valais, upper Mattertal, northern Grisons: 30 to 50 cm; in the eastern regions as much as 70 cm;
  • remaining regions of Switzerland: 15 to 30 cm; south of the Main Alpine Ridge and in the Simplon region, less.
Weather outlook through Friday, 24 May
Nighttime skies on Wednesday will be predominantly clear. During the daytime on Thursday, it will be sunny. On Thursday night, nocturnal skies will be clear for the most part, particularly in the southern and eastern regions. During the daytime on Friday, the cloud cover will increase from the west. During the afternoon, showers are possible in isolated cases. The zero-degree level will lie at 3000 m. Winds will be light.
Outlook
Over the weekend, skies will be variably cloudy, accompanied by showers and thunderstorms. Avalanche danger levels are not expected to change significantly. The avalanche forecast is still somewhat uncertain, however.

Keep informed about the publication of unannounced Avalanche Bulletins. Activate in the App WhiteRisk the "Push Summer Bulletin". You can also subscribe to the SMS Service by sending an SMS "START SLF SOMMER" to Nr. 9234 (only Swiss cell phone providers) or unsubscribe by sending an SMS "STOP SLF SOMMER" (CHF 0.2/SMS).
Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.
Edition: 22.5.2019, 17:00 / Next update: 24.5.2019, 18:00
Avalanche danger
Central and eastern sectors of the northern flank of the Alps, Grisons not including the southern valleys:
The avalanche prone locations for dry-snow avalanches are located on steep west-facing to north-facing to east-facing slopes above approximately 2600 m more than anywhere else. Fresh snow and freshly generated snowdrifts from the last few days are still prone to triggering in those regions. Avalanches can be easily triggered in isolated cases and, particularly on the northern flank of the Alps and in northern Grisons, grow to large size. On Friday, the danger of dry-snow avalanches is expected to decrease.
Following nights of clear skies, the avalanche situation for wet-snow avalanches is quite favourable in the early morning hours of each day. As a consequence of solar radiation and rising daytime temperatures, increasingly frequent wet-snow avalanches can be expected during the course of the day. This applies to south-facing slopes up as far as the high alpine regions and to north-facing slopes below approximately 2600 m. On Thursday in particular, numerous moist-snow avalanches can be expected to release from the fresh snow. Wet-snow avalanches can grow to large size in some places.
Tours in outlying terrain away from secured and marked ski runs require experience in the evaluation of avalanche dangers on-site and should be brought to a close early in the day.
Western sector of the northern flank of the Alps, Valais, southern flank of the Alps:
Following nights of clear skies, the avalanche situation during the morning hours is favourable for the most part. Avalanche prone locations for dry-snow avalanches are found on very steep north-facing slopes above 2800 m more than anywhere else. The layers close to the upper surface of the snowpack are still prone to triggering in some places of those regions. On the southern flank of the Alps, these avalanche prone locations occur more seldom.
The danger of wet-snow avalanches increases during each day as a consequence of solar radiation and daytime warming. This applies particularly to south-facing slopes as far up as the high alpine regions and on north-facing slopes below approximately 2800 m.
Backcountry tours require a prudent route selection and should be terminated early in the day.
Snow and weather
Snowpack
At high altitudes there is significantly more snow than is customary for this juncture of the season.
The fresh snow of the last few days is still prone to triggering in some places at high altitudes, but is stabilising to an increasing degree.
The snowpack on north-facing slopes below approximately 2600 m, on south-facing slopes up as far as the high alpine regions, is thoroughly wet. As a consequence of solar radiation and rising daytime temperatures, the extent of snowpack wetness increases ongoingly. During the course of each day, wet-snow avalanches can be expected.
Weather review to Wednesday, 22 May
Nighttime skies in the western and southern regions were partly clear, in the eastern region the snowfall continued above approximately 2000 m. During the daytime it was partly sunny in the western and southern regions, in the eastern regions skies were overcast. Winds were blowing at light to moderate strength from northerly directions. Between Sunday afternoon and Wednesday afternoon, the following amounts of fresh snow were registered above 2500 m:
  • northern regions of the western and central sectors of the northern flank of the Alps, eastern sector of the northern flank of the Alps, Lower Valais, upper Mattertal, northern Grisons: 30 to 50 cm; in the eastern regions as much as 70 cm;
  • remaining regions of Switzerland: 15 to 30 cm; south of the Main Alpine Ridge and in the Simplon region, less.
Weather outlook through Friday, 24 May
Nighttime skies on Wednesday will be predominantly clear. During the daytime on Thursday, it will be sunny. On Thursday night, nocturnal skies will be clear for the most part, particularly in the southern and eastern regions. During the daytime on Friday, the cloud cover will increase from the west. During the afternoon, showers are possible in isolated cases. The zero-degree level will lie at 3000 m. Winds will be light.
Outlook
Over the weekend, skies will be variably cloudy, accompanied by showers and thunderstorms. Avalanche danger levels are not expected to change significantly. The avalanche forecast is still somewhat uncertain, however.

Keep informed about the publication of unannounced Avalanche Bulletins. Activate in the App WhiteRisk the "Push Summer Bulletin". You can also subscribe to the SMS Service by sending an SMS "START SLF SOMMER" to Nr. 9234 (only Swiss cell phone providers) or unsubscribe by sending an SMS "STOP SLF SOMMER" (CHF 0.2/SMS).
 

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:

Danger of dry-snow avalanches at high altitudes. Caution urged towards wet-snow avalanches during the course of the day.
Edition: 22.5.2019, 17:00 / Next update: 24.5.2019, 18:00
Avalanche danger
Central and eastern sectors of the northern flank of the Alps, Grisons not including the southern valleys:
The avalanche prone locations for dry-snow avalanches are located on steep west-facing to north-facing to east-facing slopes above approximately 2600 m more than anywhere else. Fresh snow and freshly generated snowdrifts from the last few days are still prone to triggering in those regions. Avalanches can be easily triggered in isolated cases and, particularly on the northern flank of the Alps and in northern Grisons, grow to large size. On Friday, the danger of dry-snow avalanches is expected to decrease.
Following nights of clear skies, the avalanche situation for wet-snow avalanches is quite favourable in the early morning hours of each day. As a consequence of solar radiation and rising daytime temperatures, increasingly frequent wet-snow avalanches can be expected during the course of the day. This applies to south-facing slopes up as far as the high alpine regions and to north-facing slopes below approximately 2600 m. On Thursday in particular, numerous moist-snow avalanches can be expected to release from the fresh snow. Wet-snow avalanches can grow to large size in some places.
Tours in outlying terrain away from secured and marked ski runs require experience in the evaluation of avalanche dangers on-site and should be brought to a close early in the day.
Western sector of the northern flank of the Alps, Valais, southern flank of the Alps:
Following nights of clear skies, the avalanche situation during the morning hours is favourable for the most part. Avalanche prone locations for dry-snow avalanches are found on very steep north-facing slopes above 2800 m more than anywhere else. The layers close to the upper surface of the snowpack are still prone to triggering in some places of those regions. On the southern flank of the Alps, these avalanche prone locations occur more seldom.
The danger of wet-snow avalanches increases during each day as a consequence of solar radiation and daytime warming. This applies particularly to south-facing slopes as far up as the high alpine regions and on north-facing slopes below approximately 2800 m.
Backcountry tours require a prudent route selection and should be terminated early in the day.
Snow and weather
Snowpack
At high altitudes there is significantly more snow than is customary for this juncture of the season.
The fresh snow of the last few days is still prone to triggering in some places at high altitudes, but is stabilising to an increasing degree.
The snowpack on north-facing slopes below approximately 2600 m, on south-facing slopes up as far as the high alpine regions, is thoroughly wet. As a consequence of solar radiation and rising daytime temperatures, the extent of snowpack wetness increases ongoingly. During the course of each day, wet-snow avalanches can be expected.
Weather review to Wednesday, 22 May
Nighttime skies in the western and southern regions were partly clear, in the eastern region the snowfall continued above approximately 2000 m. During the daytime it was partly sunny in the western and southern regions, in the eastern regions skies were overcast. Winds were blowing at light to moderate strength from northerly directions. Between Sunday afternoon and Wednesday afternoon, the following amounts of fresh snow were registered above 2500 m:
  • northern regions of the western and central sectors of the northern flank of the Alps, eastern sector of the northern flank of the Alps, Lower Valais, upper Mattertal, northern Grisons: 30 to 50 cm; in the eastern regions as much as 70 cm;
  • remaining regions of Switzerland: 15 to 30 cm; south of the Main Alpine Ridge and in the Simplon region, less.
Weather outlook through Friday, 24 May
Nighttime skies on Wednesday will be predominantly clear. During the daytime on Thursday, it will be sunny. On Thursday night, nocturnal skies will be clear for the most part, particularly in the southern and eastern regions. During the daytime on Friday, the cloud cover will increase from the west. During the afternoon, showers are possible in isolated cases. The zero-degree level will lie at 3000 m. Winds will be light.
Outlook
Over the weekend, skies will be variably cloudy, accompanied by showers and thunderstorms. Avalanche danger levels are not expected to change significantly. The avalanche forecast is still somewhat uncertain, however.

Keep informed about the publication of unannounced Avalanche Bulletins. Activate in the App WhiteRisk the "Push Summer Bulletin". You can also subscribe to the SMS Service by sending an SMS "START SLF SOMMER" to Nr. 9234 (only Swiss cell phone providers) or unsubscribe by sending an SMS "STOP SLF SOMMER" (CHF 0.2/SMS).

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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