Avalanche.report

Thursday 17 April 2025

Published 16 Apr 2025, 17:00:00


Danger level


Avalanche Problem
Wet snow


Wet-snow avalanches possible at any time or day or night due to thoroughly wet snowpack

Wet-snow avalanches possible at any time or day or night, esp. at the foot of rock walls on the Italian border. Wet-snow avalanches can fracture down to ground level and grow to large size, esp. in zones with sufficient snow. Runout zones should be avoided. Unfavorable conditions for backcountry tours.

Snowpack

dp.3: rain
dp.10: springtime scenario

Heavy rainfall is expected. Weather conditions are making the snowpack ever wetter, leading to a loss of firmness inside the snowpack, resulting to loss of snowpack firmness. On steep sunny slopes below 1600m, hardly any snow on the ground.

Tendency

Due to rainfall, frequency and size of danger zones are on the increase


Danger level

2800m
Avalanche Problem
Wet snow
2800m
Wind slab
2800m


Wet-snow avalanches are the main danger. Freshly generated snowdrifts in high-alpine regions.

Avalanche danger below 2800m is considerable, above that altitude danger is moderate. Wet-snow avalanches can release naturally in all aspects and grow to medium size. Esp. on steep W/N/E-facing slopes, increasingly frequent slab avalanches are possible. Thy can sweep along the thoroughly wet snowpack and grow to large size, esp. in high-altitude starting zones where there is sufficient snow. Avalanches in steep gullies can in isolated cases plummet down to green zones. In very steep grass-covered terrain, medium-sized glide-snow avalanches can trigger naturally all day long. Danger zones for small freshly generated snowdrift accumulations occur on wind-loaded gullies and bowls on very steep shady slopes above 2800m. Dry-snow slab avalanches can be triggered in these places by one single skier. In isolated cases, avalanches can fracture down to deeper layers in the old snowpack and grow to medium size.

Snowpack

The snowpack below 2800m is at least moistened in all aspects, on sunny slopes often up to high-alpine regions thoroughly wet. The snowpack cannot sufficient radiate outwardly during the nocturnal hours, forms only a thin melt-freeze crust not capable of bearing loads, and softening quickly in the morning hours. High air moisture and local rainfall is making the snowpack even wetter. Weak layers of faceted crystals evident only on extremely steep shady slopes above 2800m. In high-alpine regios, 5-10cm of fresh snow is anticipated. Due to strong-velocity winds, small snowdrift accumulations will be generated, which esp. on very steep shady slopes will be deposited atop soft layers and will be prone to triggering.

Tendency

As temperatures drop and winds slacken off, avalanche danger will briefly recede on Friday


Danger level

2800m
Avalanche Problem
Wet snow
2800m
Wind slab
2800m


Due to rainfall, wet-snow avalanches possible at any time or day or night. Fresh snowdrifts in high-alpine zones.

Wet-snow avalanches possible at any time or day or night, due to a thoroughly wet snowpack following a night of overcast skies., esp. at the foot of rock walls on the Italian border. Wet-snow avalanches can fracture down to ground level and grow to medium size, esp. in zones with sufficient snow. Runout zones should be avoided. Freshly generated snowdrift accumulations can often be triggered by one sole skier, esp. on very steep shady slopes above 2800m. Such danger zones occur in ridgeline terrain, in gullies and bowls. These are unfavorable conditions for backcountry tours.

Snowpack

dp.3: rain
dp.6: cold, loose snow and wind

Rainfall expected up to high altitudes. Weather conditions below 2800m are leading to the snowpack becoming thoroughly wet. Following a night of overcast skies, reduced outgoing radiation and the snowpack surface can freeze only superficially, it softens swiftly in the morning. High-alpine zones: up to 20cm of fresh snowfall expected, locally more. Due to fresh fallen snow and often strong southerly winds, small new snowdrift accumulations will be generated. On steep sunny slopes below 1900m there is hardly any snow on the ground.

Tendency

pDue to rainfall, frequency and size of danger zones are on the increase


Danger level

2800m
Avalanche Problem
Wet snow
2800m
Wind slab
2800m


Main danger: wet-snow avalanches. Beware fresh snowdrifts in high-alpine zones.

Avalanche danger below 2800m is considerable, above that altitude danger is moderate. On steep slopes in all aspects which have not yet discharged, wet-snow and glide-snow avalanches can trigger naturally and grow to medium-to-large size. In high-alpine zones, fresh snowdrift accumulations require attentiveness, they are usually small, but often easily triggered. Danger zones occur in gullies, bowls, behind protruberances in the terrain and on very steep shady slopes above 2800m. In addition, winter sports enthusiasts can trigger small-to-medium avalanches in the old snow in isolated cases. Danger zones occur in little-tracked backcountry terrain, mostly on very steep NW/N/NE-facing slopes and are difficult to recognize.

Snowpack

Outgoing longwave radiation during the night from Wednesday to Thursday will be very poor due to moist-warm air masses and some rainfall. Due to strong-velocity S/SE winds, small snowdrift accumlations will be generated which will be deposited stop soft layers, particularly on shady slopes in high-alpine zones, and be prone to triggering. On south-facing slopes there is hardly any snow on the ground up to high altitudes. Also on shady slopes the ground is becoming bare of snow up to intermediate altitudes. On very steep shday slopes at high altitudes there are unfavorable intermediate layers inside the snowpack.

Tendency

Due to temperatures dropping and winds slackening off, avalanche danger will recede.


Danger level


Avalanche Problem
Wet snow


Naturally triggered wet-snow avalanches possible at any time or day or night

Wet-snow avalanches possible at any time or day or night, due to a thoroughly wet snowpack following a night of overcast skies., esp. at the foot of rock walls on the Italian border. Wet-snow avalanches can fracture down to ground level and grow to large size, esp. in zones with sufficient snow. Runout zones should be avoided. Unfavorable conditions for backcountry tours.

Snowpack

dp.3: rain
dp.10: springtime scenario

Rainfall is anticipated. Weather conditions are making the snowpack thoroughly wet, leading to a loss of firmness inside the snowpack. On steep sunny slopes and below 1800m, there is hardly any snow on the ground.

Tendency

Due to rainfall, likelihood of wet-snow avalanches triggering is on the increase


Danger level


Avalanche Problem
Wet snow
Gliding snow


Wet-snow and glide-snow avalanches can release at any time of day or night.

Avalanche danger is moderate. Danger zones for wet-snow avalanches occur on very steep shady slopes below 2600m, on very steep sunny slopes at all altitudes. Wet-snow avalanches can trigger naturally at any time of day or night and grow to medium size Esp. on very steep W/N/E-facing slopes, increasingly frequent wet slab avalanches are possible, triggered either naturally or by persons. Avalanches in steep gullies can in isolated cases plummet down to the green zones.

Snowpack

The snowpack below 2600m is at least moistened in all aspects, on sunny slopes often up to high-alpine regions thoroughly wet. The snowpack cannot sufficient radiate outwardly during the nocturnal hours, forms only a thin melt-freeze crust not capable of bearing loads, and softening quickly in the morning hours. High air moisture and local rainfall is making the snowpack even wetter.

Tendency

Little change is anticipated


Danger level

1600m
Avalanche Problem
Wet snow
1600m


Snowpack

Tendency


Danger level

1700m
Avalanche Problem
Wet snow
1700m


Spontaneous wet-snow avalanches from steep terrain possible at any time!

The avalanche danger is moderate above 1.700 m. Danger spots are located in steep shady slopes. There spontaneous wet-snow avalanches are possible any time or can be triggered by an individual. On smooth surfaces gliding-snow avalanches are still possible. Avoid areas below glide cracks. Avalanches are small to medium sized.

Snowpack

The snowcover is depending on height and exposition wet or moist. On southern exposed sloped the snow has almost fully retreated till high altitudes. During the night the firming and setteling of the snow cover is not possible due to the lack of radiation caused by clouds. the snow cover is moist, wet and soft from the morning on. The retreatment increases.

Tendency

On Thursday clouds are coming from south and rain is possible. It will stay mild. The wet-snow problem is persistent and the snow retreats increasingly even in hight altitudes and northern expositions.


Danger level

1600m
Avalanche Problem
Wet snow
1600m


In Allgau, likelihood of wet-snow avalanches triggering in late afternoon will increase, due to rainfall

Avalanche danger above 1600m is moderate, below that altitude danger ris low. Main problem: wet snow. Wet glide-snow avalanches are possible at any time on grass-covered slopes, in sparsely wooded zones and over smooth rock places. In addition, naturally triggered wet loose-snow avalanches are possible on extremely steep slopes which have not yet discharged. At high altitudes there is still sufficient snow for avalanches to grow to medium size.

Snowpack

The snowpack on shady slopes is thoroughly wet up to high altitudes. A thin melt-freeze crust can form during the nighttime hours, but softens swiftly during the morning. On south-facing slopes up to high altitudes, hardly any snow on the ground. On shady slopes, there is snow on the ground above 1400m.

Tendency

Little change anticipated


Danger level

1600m
Avalanche Problem
Wet snow
1600m
Gliding snow
1600m


Danger of wet-snow avalanches even in the morning

Snowpack

Tendency

Due to temperatures dropping and winds slackening off, avalanche danger will recede.


Danger level

1700m
Avalanche Problem
Wet snow
1700m


Avalanche danger low - caution: spontaneous wet-snow avalanches!

The avalanche danger is in general low. Nevertheless spontaneous small sized wet-snow avalanches are possible when a sufficient amount of snow is present - like in high altitudes in northern exposed slopes. The danger increases during the course of the day.

Snowpack

The snowcover is depending on height and exposition wet or moist. On southern exposed sloped the snow has almost fully retreated till high altitudes. During the night firmness can increase due to nightly radiation. During the course of the day higher temperatures and sun will cause wetness and loss of firmness. The snowcover is depending on height and exposition wet or moist. On southern exposed sloped the snow has almost fully retreated till high altitudes. During the night firmness can increase due to nightly radiation. During the course of the day higher temperatures and sun will cause wetness and loss of firmness.

Tendency

On Thursday clouds are coming from south and rain is possible. It will stay mild. The wet-snow problem is persistent and the snow retreats increasingly even in hight altitudes and northern expositions.


Danger level


Avalanche Problem
Wet snow


Due to rainfall, wet-snow slides possible at any time or day or night.

Due to daytime warming and solar radiation, likelihood of wet snow slides possible at any time of day or night. Runout zones should be avoided. Unfavorable conditions for backcountry tours.

Snowpack

dp.3: rain
dp.10: springtime scenario

Rainfall is anticipated. Weather conditions are making the snowpack thoroughly wet, leading to a loss of firmness inside the snowpack. On steep sunny slopes and below 1800m, there is hardly any snow on the ground.

Tendency

Due to rainfall, frequency and size of danger zones are on the increase


Danger level


Avalanche Problem
Wet snow


Wet-snow slides and small avalanches already during the morning hours

Snowpack

Tendency

Wet-snow and gliding snow remain the major danger.


Danger level


Avalanche Problem
Wet snow


What snow remains lies mostly on high-altitude north-facing slopes

Avalanche danger is low. Wet snow can be problematic. On smooth, very steep slopes which have not yet discharged, small wet glide-snow avalanches are possible in all aspects. Where the snow on the ground is sufficient, small naturally triggered wet loose-snow avalanches are possible. In Allgau, likelihood of wet-snow avalanches triggering in late afternoon will increase, due to rainfall

Snowpack

What snow remains is thoroughly wet. During the night a thin melt-freeze crust can form only in the eastern regions, and it softens rapidly in the morning. On south-facing slopes up to high altitudes, hardly any snow on the ground. On shady slopes, there is snow on the ground above 1400m.

Tendency

Avalanche danger levels will remain low.


Danger level


Avalanche Problem
Wet snow
Gliding snow


Small-sized wet-snow and glide-snow avalanches can trigger naturally

Avalanche danger is low. During the course of the day, likelihood of small wet-snow avalanches triggering on sunny steep slopes will increase somewhat. Runout zones below very steep snow-covered gullies and grass-covered slopes should be avoided.

Snowpack

Little snow on the ground. The melt-freeze crust is often capable of bearing loads, but swiftly softens in the morning and forfeits its bonding.

Tendency

Little change expected. The snowpack is becoming wetter.