Lea Hartl

Today and tomorrow will be extremely turbulent in the Alps with gale-force winds and heavy precipitation in the west and north. Also changeable at the weekend, with the current turning to the south. Also: spectacular lake-effect snowfall over the holidays in the USA!

The film Numinous by Dendrite Studios, which was recently named Movie of the Year at the Powder Awards, is a silent movie. The athletes, above all Kye Petersen, who played a key role in the production, delight the viewer with their silence and appealing skiing action.

An Italian low causes strong südstau. This is followed by a cold front in the north and then mild westerly weather. Cold air masses in north-eastern Canada are responsible for the latter, favoring the development of low pressure in the Atlantic.

A pre-Christmas snow streak in the east at the end of the week is followed by a milder phase over the holidays. Plus: 2017 was pretty warm overall, little ice in the polar regions and continued trouble with the weather on the internet.

Around 60 people are sitting in the seminar room of a Davos hotel. They include mountain guides, safety officers from municipalities and cantons, natural hazard experts from the Swiss Federal Railways and blasting experts and slope maintenance staff from various ski resorts. Lukas Duerr, avalanche warning officer at the SLF, asks the group: "What does serious danger actually mean?"

When the weather really gets going, meteorologists' hearts always beat a little faster. This week's WeatherBlog therefore includes a summary of the rather spectacular weather of the last few days and, of course, a brief outlook.

PowderGuide partner Devold is a traditional Norwegian manufacturer of wool clothing that has been dressing fishermen, farmers and polar pioneers like Fridtjof Nansen since the 19th century. Nowadays, in addition to the classic Norwegian sweaters that kept Fridtjof warm and cozy, there is also an extensive range of merino underwear for all kinds of sporting activities. This week, the Breeze ski underwear ensemble is our Gear of the Week.

A normal, cool autumn, a new cold snap at the weekend, a new Italian low. When it's on, it's on, thinks winter and relies on tried and tested weather patterns.

The signs are still pointing to winter. A northerly current is carrying polar air masses towards the Alps. It's snowing and it's staying cold or getting colder, at least in Europe. If anyone is interested in the weather at the North Pole: it's getting warm there.

After the less productive northerly storm at the beginning of the week, a change in the general weather situation is now set to follow. It will be warmer and sunny before the next disturbance is expected to approach at the weekend. In the southern Mediterranean region, Medicane Numa has brought extreme weather and severe storm damage in recent days. Plus: Meteorologist dispute on the internet!

While the first big snowfalls of the season are causing a stir here in Germany, dozens of volunteers are mercilessly trampling the first snow of the winter in Aspen. Shoes and trouser legs wrapped in Ducktape, they march through the freshly snow-covered terrain to prevent the early season snow from becoming an old snow problem.

Now that our colleague Orakel has already spoken twice, it's high time for the WeatherBlog to dive back into the action. The weather has a lot to offer at the moment, so we'll take a classic look at the current situation and the outlook for the future.