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PowderAlert 6 2019/20 | Westautobahn A1

Ullr establishes a westerly flow and it dumps with a fluctuating snow line

by Lars Oelmann 12/08/2019
The days of southern congestion are over and now that the west also has a base, the upcoming snowfall in the west can be put to good use. This dump is in all likelihood just the prelude to several dumps this week with the finale at the weekend.

While weather websites, coffee corner conversations and newspapers (the dubious ones) are already worrying about the Christmas weather, freeriders don't even know what the weather will be like at the weekend. But more on that in the medium term. First of all, it's time for the west to expand the base with a falling snow line. Sounds good, because Dump One on the western highway will get the cooler air masses.

Alert period and areas

The alert applies from the Hautes Alpes in France to the Arlberg, with the core, as always with something like this, lying somewhere between Lower Valais and northern France. The alert lasts until Tuesday morning.

Wind

It's storming from the west. And that means avalanche danger. But it also pushes the full amounts into Valais or Goms or deeper into France.

Snow line

A lot is happening here. From over 1500-1800m, it will drop quite quickly on Monday, so that a base can also develop further down in the west. We'll see how permanent this will be in the medium term.

The amounts

From the Arlberg to the Hautes Alpes, 30-50cm will fall, although in France it's more likely to be at the upper end and at the Arlberg at the lower end. In the core in the congested areas from northern France to the lower Valais, 50-70cm, possibly even 80cm here or there.

Where should I go?

Monday I would go to the alpine meadows or into the sparse forest in the core. On Tuesday it clears up and you can go to ski resorts further up. But as it's very dangerous then, I'd take it easy. After that, it will rapidly get warmer again and it may snow or rain again in the west on Wednesday, so quiet tours are not on the program. If you're traveling for longer, I would set up inside the Alps, because the massive storm will bring in the precipitation, but you might have more luck with the warmth later on.

Medium term

As already mentioned, Ullr is now putting his energy into the western highway, but unfortunately he's playing arm wrestle with Uncle Climate Change and so it's not certain what will happen. If the system slides further southeast, it will tend to stay pleasantly cool and humid. However, many models also have the warm-humid or, on Sunday, the warm-dry-warm variant on offer. As the air masses are very close together and 200km is practically nothing with such a huge low, there won't be any real clarity on this until Wednesday. You are in demand. The gifts at the Ullrschrein must strengthen our favorite god so that the weekend doesn't float away. In the truest sense of the word.

But first of all:

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