The time has come. The Oracle says "all systems go", squeezes into the skintight clothing of an attractive pit crew member, as found in motor racing, and waves the green flag, officially heralding the start of the Christmas race.

It's finally that time again. Christmas time, PowderAlert time. And not just one but two holidays are coming up, because Ullr has finally woken up from hibernation. At the beginning of December, it looked like there would be a real second PowderAlert, but two days before the Alert was due to take place, it was swiftly cancelled and instead of the expected 70-100cm, we got 20-30cm. The oracle was quite surprised at the accuracy of today's crystal ball. That's why PowderAlerts always come just before the snowfall, because nothing is worse than snow that doesn't fall but has been hyped up in advance. Now the time has come, because first there will be a little warm-up until Friday evening and then the second Alert will come on Saturday with a really big bag of fresh snow, then also in the EAST!

The dry autumn with late summer flair in the golden larch forests and south-facing rock faces is coming to an end, and Ullr is sending us winter greetings for the second time. During the first greeting in mid-September, the first turns were already enjoyed, but the snow did not last. This second greeting hopefully heralds the start of winter, and we can start the PowderAlert series with snow height betting games as usual and bet on a strong winter.

Before we head towards the Christmas snow, let's take a look at the large-scale pressure patterns that spin over the world's oceans and control our weather: The polar vortex currently has two distinct cold poles. One lies over eastern Siberia and the North Pacific. The other extends roughly from Newfoundland via Greenland to the Barents Sea and is responsible for a strong westerly current over the Atlantic, which has been bringing us "new weather" every few days for a while now.

In many places, the Alps are a winter wonderland. Nevertheless, we have a mixed assessment of the start of the season. There has been some nice precipitation, but none of it has been heavy. The snow conditions across the Alps are neither bad nor good for mid-December. The prospects for new snow are similar. I therefore describe the situation with the beautiful Spanish proverb: ni fu ni fa.

As we all know, the WetterBlog likes when things are happening in the weather kitchen and suffers from acute boredom bordering on anxiety if the weather stays the same for too long. We are therefore pleasedto announce: Something is happening! The next few days offer (almost) everything that Alpine weather can do.

"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.

Fortunately, this season got off to a very snowy start and provided a good foundation. It stayed that way until shortly before Christmas. The so-called Christmas thaw materialised just in time for Christmas.

In this rummage, we take a closer look at the so-called Arlberg effect and its impact on avalanche danger. As this effect does not only occur on the Arlberg, we refer to it more generally as the "effect of off-piste descents".