SLF

"Under the magnifying glass" is a series of articles by Lydia and Linus. We are both at the SLF in Davos this winter, where we are studying snow from a scientific perspective. As we regularly take a close look at the snow in our surroundings - both during our field work and at weekends - we'll be taking you with us from time to time this winter. We will explain our snow profiles to you, what the individual observations mean and what snow science topics arise from the current profiles. Today: How the orientation of a slope - i.e. its exposure - influences the development of the snowpack and why north-facing slopes often offer particularly good snow, but also the most dangerous conditions.

"Under the magnifying glass" is a series of articles by Lydia and Linus. We are both at the SLF in Davos this winter, where we are studying snow from a scientific perspective. As we regularly take a close look at the snow in the area anyway - both during our field work and at our weekends - we'll be taking you with us from time to time this winter. We explain our snow profiles, what the individual observations actually mean and pick up on various snow science topics that arise from the current profiles. Today: How the weather conditions at the start of the season can help shape the rest of the winter season - and how the weather in recent weeks has changed the snowpack.

As my colleagues predicted last week, all that's left for me this week is the meteorological start of winter and tough, snow-unfriendly weather conditions. For the time being, we'll have to make do with what's left of the first snow of the season and what the snow cannons are still producing.

In our PowderPeople section, we regularly introduce you to exciting personalities from the mountain world. This time, we interviewed Dr. Anna Haberkorn from the WSL Institute for Snow and Avalanche Research SLF in Davos. She has been working there as an avalanche forecaster since winter 2025 and tells us a little about her everyday life.

Frank Techel is an avalanche forecaster and researcher at the SLF. He deals with the integration of models into operational avalanche forecasting and believes that there is great potential to improve avalanche warning when humans and machines work together. In the interview, he explains how "AI" supports the human SLF team in producing the bulletin and where the limits of the models lie.

The warm, slightly foehn-like Kaiser weather of the last few days has been replaced by overcast skies and even a few snowflakes here and there. Overall, however, the weather situation in the Alps still falls into the category of boring, dull weather.

An essential tool for off-piste skiing and ski touring is the avalanche report, also known as the avalanche bulletin. This has changed considerably over time. Not only does it appear more frequently - once or twice a day - but its spatial resolution has also become more detailed and precise. With the advance of artificial intelligence and the integration of model-based forecasts, new perspectives are opening up in avalanche warning.

The euphoria and fun that skiing triggers in many people is always associated with the dangers that this sport entails, especially in open terrain.

"Nothing can happen in the forest." - This is probably one of the most widespread misconceptions among skiers. It is true that statistically there are fewer avalanche accidents in the forest. However, those who are lulled into a false sense of security are unconsciously taking a high risk and acting carelessly. In today's SnowFlurries we therefore take a look at how the forest influences snowpack stability and what skiers need to bear in mind.

Winter made a brief appearance in the south last week, as the latest ConditionReports show. CRs from the north, on the other hand, indicate that the snow is becoming less, at least regionally. According to Salta's CR from 10 February, "Great cloud scenery and very pleasant slush snow" are highlights of recent touring days in the northern Alps. Jacobanselm even found a small layer of powder on 13 February and "only" south-facing sharks.

Dr. Benjamin Walter is a physicist by profession. He works at the SLF (Institute for Snow and Avalanche Research) in Davos and is primarily concerned with snow physics, specifically the changes to snow crystals caused by wind transport and the resulting risks to the snowpack structure. Christiane Eggert interviewed him for us.

It will remain varied. Today, Wednesday, it will snow again in many places in the north, while the sun will shine in the south. With temperatures rising, it will be quite friendly on Thursday and Friday. The next major disturbance is approaching at the weekend and is expected to bring a new round of storms and precipitation from Sunday. Unfortunately, it will probably rain at lower altitudes.