Avalanche.report

Wednesday 01 05 2019

Published 30 04 2019, 17:00

Regions
IT-32-BZ-18, IT-32-BZ-19, AT-07-29, IT-32-BZ-20, IT-32-BZ-14

AM
Danger level
Danger Level 3 - Considerable above 2200m
Danger Level 1 - Low above 2200m
Avalanche Problem
Wind-drifted snow above 2600m, N-NE-NW

PM
Danger level
Danger Level 3 - Considerable above 2200m
Danger Level 2 - Moderate above 2200m
Avalanche Problem
Wet snow above 2800m, N-NE-E-SE-S-SW-W-NW
Wind-drifted snow above 2600m, N-NE-NW

Moist loose snow avalanches and gliding avalanches are the main danger. Fresh and older wind slabs require caution.

As a consequence of warming during the day and the solar radiation, the likelihood of moist loose snow avalanches being released will increase appreciably in all aspects. These can penetrate even deep layers and reach large size in isolated cases.
In addition the fresh wind slabs in particular adjacent to ridgelines and at high altitudes are capable of being triggered even now, especially on very steep shady slopes above approximately 2600 m. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. As a consequence of solar radiation individual natural avalanches are possible, in particular medium-sized ones, especially on very steep sunny slopes at high altitudes and in high Alpine regions.
A certain danger of gliding avalanches exists. This applies on steep grassy slopes below approximately 2600 m in all aspects.

Snowpack

dp 2: gliding snow
dp 6: cold, loose snow and wind

Over a wide area 40 to 80 cm of snow. has fallen in the last few days above approximately 1000 m. The wind was moderate to strong over a wide area. In some places fresh snow and wind slabs are lying on soft layers, in particular at high altitudes and in high Alpine regions on very steep shady slopes. Outgoing longwave radiation during the night will be quite good. The old snowpack will be wet all the way through at intermediate and high altitudes.

Tendency

The backcountry touring conditions in the morning, after a clear night, are quite favourable.

Regions
IT-32-BZ-11, AT-07-20, IT-32-BZ-01, IT-32-BZ-12, AT-07-21, IT-32-BZ-02, IT-32-BZ-13, AT-07-22, IT-32-BZ-03, AT-07-23, IT-32-BZ-04, AT-07-24, IT-32-BZ-05, AT-07-14, AT-07-25, IT-32-BZ-06, AT-07-15, AT-07-04, AT-07-26, IT-32-BZ-07, AT-07-27, AT-07-16, AT-07-28, AT-07-19

AM
Danger level
Danger Level 2 - Moderate above 2200m
Danger Level 1 - Low above 2200m
Avalanche Problem
Wind-drifted snow above 2600m, N-NE-NW

PM
Danger level
Danger Level 2 - Moderate above 2200m
Danger Level 2 - Moderate above 2200m
Avalanche Problem
Wet snow above 2800m, N-NE-E-SE-S-SW-W-NW
Wind-drifted snow above 2600m, N-NE-NW

Loose snow avalanches and gliding avalanches are the main danger.

The backcountry touring conditions in the morning are quite favourable.
As a consequence of warming during the day and the solar radiation, the likelihood of loose snow avalanches being released will increase appreciably in all aspects. These can penetrate deep layers and reach large size in isolated cases. In the event of solar radiation caution is to be exercised in particular in the regions exposed to heavier precipitation.
In addition the fresh wind slabs in particular adjacent to ridgelines in all aspects are capable of being triggered in some locations, especially on very steep shady slopes above approximately 2600 m. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Mostly avalanches are medium-sized. As a consequence of solar radiation individual natural avalanches are possible. This applies on very steep sunny slopes in high Alpine regions adjacent to ridgelines.
A latent danger of gliding avalanches exists. This applies on steep grassy slopes below approximately 2300 m in all aspects, also on steep sunny slopes below approximately 2600 m.

Snowpack

dp 10: springtime scenario
dp 6: cold, loose snow and wind

Over a wide area 30 to 50 cm of snow, and even more in some localities, has fallen in the last few days above approximately 1000 m. The fresh wind slabs have bonded quite well with the old snowpack at intermediate and high altitudes. In some cases wind slabs are lying on soft layers. This applies in particular on very steep shady slopes above approximately 2600 m. Outgoing longwave radiation during the night will be quite good. The old snowpack will be wet all the way through at intermediate and high altitudes.

Tendency

A clear night will be followed in the early morning by favourable conditions generally, but the danger of wet avalanches will increase later.

Regions
AT-07-07, AT-07-08, AT-07-09, AT-07-10, AT-07-11, AT-07-01, AT-07-12, AT-07-13, AT-07-02, AT-07-03

AM
Danger level
Danger Level 2 - Moderate above 2400m
Danger Level 1 - Low above 2400m
Avalanche Problem
Wind-drifted snow above 2800m, N-NE-NW

PM
Danger level
Danger Level 2 - Moderate above 2400m
Danger Level 2 - Moderate above 2400m
Avalanche Problem
Wet snow, N-NE-E-SE-S-SW-W-NW
Wind-drifted snow above 2800m, N-NE-NW

Loose snow avalanches and gliding avalanches are the main danger.

The backcountry touring conditions in the morning are quite favourable.
As a consequence of warming during the day and the solar radiation, the likelihood of loose snow avalanches being released will increase appreciably in all aspects. These can penetrate deep layers and reach large size in isolated cases. In the event of solar radiation caution is to be exercised in particular in the regions exposed to heavier precipitation.
In addition the fresh wind slabs in particular adjacent to ridgelines in all aspects are capable of being triggered in some locations, especially on very steep shady slopes above approximately 2600 m. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Mostly avalanches are medium-sized. As a consequence of solar radiation individual natural avalanches are possible. This applies on very steep sunny slopes in high Alpine regions adjacent to ridgelines.
A latent danger of gliding avalanches exists. This applies on steep grassy slopes below approximately 2300 m in all aspects, also on steep sunny slopes below approximately 2600 m.

Snowpack

dp 10: springtime scenario
dp 6: cold, loose snow and wind

Over a wide area 10 to 30 cm of snow, and even more in some localities, has fallen in the last few days above approximately 1000 m. The fresh wind slabs have bonded quite well with the old snowpack at intermediate and high altitudes. In some cases wind slabs are lying on soft layers. This applies in particular on very steep shady slopes above approximately 2800 m. Outgoing longwave radiation during the night will be quite good. The old snowpack will be wet all the way through at intermediate and high altitudes.

Tendency

The avalanche conditions in the morning are favourable. Moist and wet avalanches as the day progresses.

Regions
AT-07-05, AT-07-17, AT-07-06, AT-07-18

AM
Danger level
Danger Level 2 - Moderate
Avalanche Problem
Wet snow, N-NE-E-SE-S-SW-W-NW

PM
Danger level
Danger Level 2 - Moderate
Avalanche Problem
Wet snow, N-NE-E-SE-S-SW-W-NW

Loose snow avalanches and gliding avalanches are the main danger.

A moderate (level 2) danger of moist loose snow avalanches exists. As a consequence of warming during the day and the solar radiation, the likelihood of loose snow avalanches being released will increase appreciably in all aspects. These can penetrate deep layers and reach medium size. In the event of prolonged bright spells caution is to be exercised in particular.
In addition a latent danger of gliding avalanches exists. This applies on steep grassy slopes below approximately 2300 m in all aspects, also on steep sunny slopes below approximately 2600 m.

Snowpack

dp 10: springtime scenario
dp 6: cold, loose snow and wind

Over a wide area 30 to 50 cm of snow, and even more in some localities, has fallen in the last few days above approximately 1000 m. The fresh wind slabs have bonded well with the old snowpack. Outgoing longwave radiation during the night will be severely restricted. The old snowpack will be wet all the way through at intermediate and high altitudes.

Tendency

A clear night will be followed in the early morning by favourable conditions generally, but the danger of wet avalanches will increase later.