Persistent weak layers· Morning
- Above 2,500 m
- Size
- 3
Stability: poor · Frequency: few
Weakly bonded old snow and wet snow require caution.
Stability: poor · Frequency: few
Stability: poor · Frequency: few
Stability: poor · Frequency: few
Weakly bonded old snow and wet snow require caution.
Slight increase in danger of wet avalanches as a consequence of warming during the day and solar radiation. Wet avalanches can in isolated cases be released by a single winter sport participant. In very isolated cases these can release the weakly bonded old snow as well and reach large size. This applies on very steep shady slopes below approximately 2500 m. Dry avalanches can additionally be released, even by small loads in isolated cases, especially on very steep northwest, north and northeast facing slopes above approximately 2500 m. Especially transitions from a shallow to a deep snowpack are unfavourable. The avalanche prone locations are difficult to recognise.
Evening and first half of night: Over a wide area a mostly overcast night. Second half of night: A generally clear night. The surface of the snowpack will freeze to form a strong crust and will soften during the day. The snowpack is moist, in particular on sunny slopes in all altitude zones, as well as on west, north and east facing slopes below approximately 2500 m. Steep west, north and east facing slopes: Faceted weak layers exist in the bottom section of the old snowpack at elevated altitudes.
Outgoing longwave radiation during the night will be quite good. The danger of wet avalanches will increase a little during the day.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)