Snow conditions 11.5.2020
11.05.2020
Danger is 1st degree on the European five-point scale - LOW.
Main problem: favourable conditions, wet snow
Danger pattern: Spring situation
Risk assessment
Avalanche danger will mostly be LOW today. Only in the high mountains might you trigger a small southern snow slab under heavy load.
Snow conditions
In relatively warm and windy weather, the snowpack continues to shrink. There is no longer a continuous snow cover on pronounced shady slopes. The snow is mostly well transformed. Today it has become cloudy, the zero isotherm is at around 2800 m. The snow did not refreeze overnight. Due to gradual cooling and cloudy weather, avalanche danger will not increase significantly today. Exceptions may be the higher parts of the high mountains above 2300 m, where it will snow occasionally.
Forecast weather development
Today it will be mostly cloudy, summits in clouds. Especially in the Julian Alps and in the western part of the Karawanks and Kamnik-Savinja Alps there will be occasional precipitation, possibly thunderstorms. A strong southwesterly will blow. Temperature at 1500 m around 7, at 2500 m around 1 °C. Tomorrow too mostly cloudy and foggy. Precipitation will occur, weakening during the day and ceasing in places. Less precipitation in the eastern mountains. The snow line may briefly drop to around 1200 m above sea level. Variable wind mostly from the northeast. Temperature at 1500 m around 2, at 2500 m around 0 °C. On Wednesday mostly cloudy and foggy, clouds breaking only occasionally. Smaller local showers will still occur. A strong southwesterly will blow again. It will warm up. At 1500 m around 9, at 2500 m around 3 °C. Variable and quite windy weather with occasional precipitation will continue into Thursday and Friday. The snow line will mostly be above our highest peaks.
Trend in snow conditions
Today there will be occasional snow only in the higher parts of the high mountains, but tomorrow the snow line will drop to mid-mountains. Above about 2000 m above sea level, 10 to 30 cm of southern snow may fall, more especially in the high Julian Alps. Below 2000 m there will mostly be around 10 cm of new snow, in mid-mountains just a centimetre. Therefore, avalanche danger will INCREASE in the high mountains to MODERATE, 2nd degree. Especially from steep slopes, small to medium-sized southern snow avalanches may release spontaneously. On Wednesday it will warm up, so the danger of southern snow avalanches will remain at 2nd degree. Due to more pronounced warming, similar conditions will prevail on Thursday, but on Friday avalanche danger will decrease.
Next issue: Monday, 30.11.2020
Source: ARSO