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Doomsday mood at the weekend: After the Sahara dust, it gets really cold

2021-02-08T07:58:53.314Z


Every few years the sky over Bavaria turns yellow. At the weekend it was that time again: instead of sunshine, there was dust from the Sahara. This will now be followed by extreme cold.


Every few years the sky over Bavaria turns yellow.

At the weekend it was that time again: instead of sunshine, there was dust from the Sahara.

This will now be followed by extreme cold.

  • On Saturday a weather phenomenon occurred in southern Germany that can only be seen at this intensity every few years.

  • The Sahara sand is not dangerous, but can have unpleasant consequences for allergy sufferers.

  • Permafrost could now follow the warm foehn situation.

Munich

- Originally Christian Fischer wanted to use the announced foehn location on Saturday morning to take a few photos with a distant view.

Instead of a clear view of the Alps, the weather-loving thunderstorm hunter from Indersdorf (Dachau district), like most people in Upper Bavaria, only saw a yellow veil: Saharan dust.

"In various weather forums there were model cards that forecast that it would come," says Fischer.

But how much it would make itself felt was difficult to predict.

The employees of the German Weather Service (DWD) sometimes only notice that the time is ripe for visible Saharan dust when their temperature forecast is wrong.

It was like this on Saturday: The meteorologists had announced sun and up to 18 degrees at the edge of the Alps.

This ultimately resulted in four to eight degrees and a cloudy sky with a yellow cast.

"It was much colder than we expected," says meteorologist Christian Kronfeldner.

"That was because there was no sunlight through the thick clouds."

Saharan dust over Upper Bavaria: the sand is not always visible

According to Kronfeldner, there is Saharan dust at least once a year.

However, it does not make itself as noticeable every year.

In order for the sand particles to color the sky over Bavaria, several factors must be met.

“You need a storm event and a strong southerly current with a strong southerly wind,” the meteorologist lists, “and the dust has to make it over the Alps, that is, be high enough and then sink.

That requires precipitation. "

The way of the Sahara dust towards Bavaria therefore began with a desert storm.

Strong winds whirled up the sand and brought tiny particles into the atmosphere.

A low pressure area over southwest Europe then took over the transport: the southerly winds that developed carried the sand across the Mediterranean and the Alps to southern Germany.

Weather in Bavaria: Permafrost follows the Sahara dust

This yellow veil is not dangerous, even if it may trigger a doom and gloom in some viewers.

However, the Sahara wind brings a warm climate, which in turn favors the pollen flow - which can be a problem for allergy sufferers.

The sand itself, on the other hand, is harmless.

The Saharan dust also only made a short stop over the Free State.

According to DWD, he is now heading north, where he can show himself rusty red in snowy areas.

In Bavaria, the sand has already landed on the ground thanks to the rain on Sunday.

“There was a clearly visible layer of sand on my car,” says Christian Fischer.

He observes the weather models almost every hour.

“And at the moment every model run is different.” Although it should snow in the coming days, Fischer doesn't believe in large amounts of snow.

“It looks more like permafrost,” he says.

"In the course of the week it will probably get colder and colder."

Source: merkur

All news articles on 2021-02-08

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