Avalanche.report

Monday 22 04 2019

Published 22 04 2019, 08:10

Regions
AT-07-20, AT-07-10, AT-07-21, AT-07-22, AT-07-11, AT-07-23, AT-07-01, AT-07-12, AT-07-24, AT-07-13, AT-07-02, AT-07-14, AT-07-03, AT-07-15, AT-07-04, AT-07-16, AT-07-05, AT-07-17, AT-07-06, AT-07-18, AT-07-07, AT-07-08, AT-07-19, AT-07-09

AM
Danger level
Danger Level 1 - Low above 2400m
Danger Level 2 - Moderate above 2400m
Avalanche Problem
Wet snow above 2400m, N-NE-E-SE-S-SW-W-NW
Gliding snow above 2400m, N-NE-E-SE-S-SW-W-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
Gliding snow above 2400m, N-NE-E-SE-S-SW-W-NW

Increase in danger of wet avalanches as a consequence of the moist air.

Early and late morning: Moderate danger of wet avalanches will be encountered over a wide area. This applies below approximately 2400 m.
Currently there are quite favourable avalanche conditions at elevated altitudes. This applies in particular above approximately 2400 m.
During the day: The danger of wet avalanches will increase. The prevalence of avalanche prone locations and likelihood of triggering will increase from the late morning. As a consequence of the moist air more frequent wet loose snow avalanches are possible, especially on extremely steep sunny slopes at high altitudes and in high Alpine regions as well as on extremely steep shady slopes below approximately 2400 m. In addition the danger of gliding avalanches will increase as the day progresses. The avalanches can release the moist old snow as well and reach large size in some cases. Below approximately 2400 m possibly danger level 3 (considerable) will be reached.
Backcountry tours and ascents to alpine cabins should be concluded timely.

Snowpack

dp 10: springtime scenario
dp 2: gliding snow

Outgoing longwave radiation during the night was reduced. The surface of the snowpack has frozen to form a strong crust only at high altitudes and will already soften in the late morning. The old snowpack will be wet all the way through at intermediate and high altitudes. At low altitude hardly any snow is lying.

Tendency

Wet avalanches as the day progresses.

Regions
AT-07-26, AT-07-27, AT-07-28, AT-07-29, AT-07-25

AM
Danger level
Danger Level 1 - Low above 2400m
Danger Level 2 - Moderate above 2400m
Avalanche Problem
Wet snow above 2400m, N-NE-E-SE-S-SW-W-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
Persistent weak layer above 2400m above 2000m, N-NE-NW

Increase in danger of wet avalanches as a consequence of the moist air.

Early and late morning: Moderate danger of wet avalanches will be encountered over a wide area. This applies below approximately 2400 m.
Currently there are quite favourable avalanche conditions at elevated altitudes. This applies in particular above approximately 2400 m.
During the day: The danger of wet avalanches will increase. The prevalence of avalanche prone locations and likelihood of triggering will increase from the late morning. As a consequence of the moist air more frequent wet loose snow avalanches are possible, especially on extremely steep sunny slopes at high altitudes and in high Alpine regions as well as on extremely steep shady slopes below approximately 2400 m. In addition the danger of wet slab avalanches will increase as the day progresses, especially on very steep shady slopes between approximately 2000 and 2400 m. The avalanches can release the moist old snow as well and reach large size in some cases. Below approximately 2400 m possibly danger level 3 (considerable) will be reached.
Backcountry tours and ascents to alpine cabins should be concluded timely.

Snowpack

dp 10: springtime scenario
dp 1: deep persistent weak layer

Outgoing longwave radiation during the night was quite good. The surface of the snowpack has frozen to form a strong crust only at high altitudes and will already soften in the late morning. Isolated avalanche prone weak layers exist in the bottom section of the old snowpack on shady slopes, especially between approximately 2000 and 2500 m. The old snowpack will be wet all the way through at intermediate and high altitudes. At low altitude hardly any snow is lying.

Tendency

Wet avalanches as the day progresses.