Avalanche.report

Friday 3 January 2025

Published 2 Jan 2025, 17:00:00


Danger level

1400m
Avalanche Problem
Wind slab
1400m
Gliding snow


Caution: freshly generated snowdrift accumulations

Avalanche danger above 1400m is moderate. Freshly generated snowdrift accumulations above the treeline can easily be triggered by one single skier. Fracture depth of the releases is generally small. Size and frequency of danger zones tends to increase with ascending altitude. They occur especially in shady steep terrain with expansively metamorphosed snowpack surfaces and on steep slopes whose surface hoar has been covered by fresh snowfall. On steep grass-covered slopes, particularly in sunny aspects, small-sized glide-snow avalanches are possible. Caution urged below glide cracks.

Snowpack

On Thursday night, 10-20 cm of fresh snow is anticipated over widespread areas. Added to that: strong-velocity W/NE winds which will transport the fresh and loosely-packed snow. The fresh snow and drifts will be deposited atop an unfavorable, expansively metamorphosed snowpack surface particularly on shady slopes, often atop surface hoar. Also inside the snowdrift accumulations there are frequently trigger-sensitive intermediate layers evident. On steep sunny slopes the old snowpack surface has a breakable crust extending up to high altitudes.

Tendency

Avalanche danger levels not expected to change significantly


Danger level

treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
2200m
1200m


Fresh snowdrift accumulations prone to triggering

Avalanche danger above the treeline is considerable, below that altitude danger is moderate. Freshly generated snowdrift accumulations above the treeline can easily be triggered by one single skier. Size and frequency of danger zones tends to increase with ascending altitude. They occur especially in shady steep terrain with expansively metamorphosed snowpack surfaces and on steep slopes whose surface hoar has been covered by fresh snowfall. In addition, avalanches can be triggered in the weak layers of the old snowpack in isolated cases on shady steep slopes where the snow is shallow and in transitions from shallow to deep snow. generally by large additional loading. On steep grass-covered slopes, particularly in sunny aspects, small-sized glide-snow avalanches are possible. Caution urged below glide cracks.

Snowpack

On Thursday night, 20-30 cm of fresh snow is anticipated over widespread areas, maximum 20 cm in the Silvretta. Added to that: strong-velocity W/NE winds which will transport the fresh and loosely-packed snow. The fresh snow and drifts will be deposited atop an unfavorable, expansively metamorphosed snowpack surface particularly on shady slopes, often atop surface hoar. Also inside the snowdrift accumulations there are frequently trigger-sensitive intermediate layers evident. On steep sunny slopes the old snowpack surface has a breakable crust extending up to high altitudes. At high altitudes, near-ground level weak layewrs and faceted intermediate layers can often be triggered.

Tendency

Avalanche danger levels not expected to change significantly


Danger level

treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
2200m
1200m


Freshly generated snowdrift accumulations prone to triggering

Avalanche danger above the treeline is considerable, below that altitude danger is moderate. Freshly generated snowdrift accumulations above the treeline can easily be triggered by one single skier. Size and frequency of danger zones tends to increase with ascending altitude. They occur especially in shady steep terrain with expansively metamorphosed snowpack surfaces and on steep slopes whose surface hoar has been covered by fresh snowfall. On steep grass-covered slopes, particularly in sunny aspects, small-sized glide-snow avalanches are possible. Caution urged below glide cracks.

Snowpack

On Thursday night, 20-30 cm of fresh snow is anticipated over widespread areas, maximum 20 cm in the Silvretta. Added to that: strong-velocity W/NE winds which will transport the fresh and loosely-packed snow. The fresh snow and drifts will be deposited atop an unfavorable, expansively metamorphosed snowpack surface particularly on shady slopes, often atop surface hoar. Also inside the snowdrift accumulations there are frequently trigger-sensitive intermediate layers evident. On steep sunny slopes the old snowpack surface has a breakable crust extending up to high altitudes.

Tendency

Avalanche danger levels not expected to change significantly