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Weather switzerland: ex-hurricane dexter could:
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Ex-hurricane Dexter interferes in our weather-and could extend the heat – Weather switzerland: ex-hurricane dexter could
In the next few days it will be hot summer in Switzerland. Nevertheless, A tropical storm also plays a role.
The heat comes back – and could stay for a while. Moreover, In the Badi Mythenquai in Zurich, young and old are looking for cooling.
Photo: Dominique Meienberg
- A former hurricane named Dexter is currently moving towards the European mainland.
- Dexter helps vigorously to pump hot air weather switzerland: ex-hurricane dexter could masses to Europe and strengthen the southern current.
- The weather forecasts could be imprecise than usual due to the tropical influence.
Hurricane is usually not associated with the weather in Switzerland. Consequently, Finally, it is a hurricane that – as the name suggests – provide adversity in the southern latitudes. However, it occurs every now and then that hurricanes get to Europe. Similarly, You can then also influence the weather in the Alpine region. Nevertheless, This is exactly what will happen in the next week.
A former hurricane. Therefore, the one US climate and weather authority NOAA has missed the name Dexter, will turn into the local weather and contribute to the fact that the temperatures in parts of West and Central Europe will increase to 30 to 35 degrees. In addition, ex-dexter could also cause further surprises.
Hurricans are created in front of Africa’s west coast
On the North Atlantic. Similarly, where the hurricane season lasts from early June to the end of November, the birthplace of these tropical storms is usually off the West African coast. Therefore, There are ideal conditions there: warm water temperatures (over 26 degrees). In addition, unstable layering of the air mass, uniform winds and the location just north of the equator.
A plane from the weather authority Noaa is flying through the cloudless eye of. Nevertheless, the Hurrican Ida in August 2021. In addition, In the coming week, a former hurricane will also influence the weather in Europe.
Foto: Imago Images/Cover-Images
Schauers. thunderstorms arise from atmospheric disorders that send the Passat winds from the African continent to the west to the sea. These thunderstorms begin to borrow in the form of ribbons along the wind flow. A cloud -free eye is created in the middle – a tropical storm is born.
These storms move northwest in the further course. take up speed over the warm waters of the Caribbean or the Gulf weather switzerland: ex-hurricane dexter could of Mexico. If you hit land, hurricanes can cause huge damage with orcan and huge amounts of rain. Hurricane Katrina destroyed at the end of August 2005 Large parts of the city of New Orleans.
Just a “fish storm”
However, not all tropical storms have such dramatic effects. On average. only about ten storms reach the middle wind strengths of over 120 km/h per season in order to earn the name hurricane. The majority remain relatively weak and never reach land. These lows bubble far outside on the Atlantic and do not cause any damage as so -called “fish storms”. They often turn to the open sea in front of the US east coast.
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Ex-hurricane dexter also falls into this category. With his center, he was several hundred kilometers south of Newfoundland on Friday morning. For the National Hurricane Center of the NOAA, Dexter is therefore no longer really interested. He is not a danger to the US coast. soon turns into an extraropical deep above the North Atlantic, it says in the current position bulletin.
Just because the NOAA experts are deleting the storm from their dangerous card. but that does not mean that Dexter simply disappears. On the contrary. If he maintains his current course. the tropical storm is expected to reach no man’s land north of the Azores on Saturday.
Dexter thus gets weather switzerland: ex-hurricane dexter could into the sphere of influence of the North Atlantic frontal zone. It is the strong wind tape (jet stream) that extends to Europe at a large height across the North. Atlantic from America.
Dexter is “Europeanized”
In this zone. which is known as the “weather kitchen” of Europe, there are low pressure areas due to the large temperature differences between polar and subtropical air masses. These then pull eastwards under reinforcement and ultimately can also provide rainy weather and wind in the Alpine region.
Dexter is literally absorbed by this zone and carried towards Europe. According to the current model data. it will probably appear as a storm low on Monday off the west coast of Ireland. However, he will neither provide violent winds nor for otherwise dangerous weather. He is too weak for that.
The cards (pressure in 5.5 kilometers, temperature in 1500 meters) show the position of Dexter (red arrow) on Friday (top), Saturday (middle) and on Monday (below).
Quelle: ECMWF
So not worth saying, so could you think?
Just not. Despite its integration into the European weather system, Dexter remains a foreign body due to its tropical properties. To understand this. you have to make yourself aware that tropical hurricanes are huge thermal power machines from a thermodynamic point of view. In the storm clouds of a tropical storm, warm, very moist air rises. The evaporated water condenses and the heat of condensation drives the air even more. Former tropical storms ensure an exceptional energy entry into the weather kitchen even in a weakened form.
Dexter supports the heat high over Europe
That has followed. At the moment. the weather models (still) indicate that the current heat phase in Switzerland will eventually end after the middle of the next week with the passage of a cold front.
But there weather switzerland: ex-hurricane dexter could are also signs of extending the heat to the last summer vacation weekend. Dexter mixes with it. The ex-hurricane pumps very hot and moist air masses towards Central Europe on its front. With this so -called warm air invection, it supports the already prevalent high geopotential, i.e. the high air pressure above the continent.
In this way, Dexter influences the heat wave built on the weekend. “The former hurricane definitely strengthens the southern current over the Atlantic,” says Ludwig Zgraggen, meteorologist at Meteo Switzerland. This is a well -known phenomenon. According to Zgraggen. for example, ex-hurricane Irene ensured one of the strongest thongs in November 1982 that ever raged in the Alpine region.
The ex-hurricane also has the potential to make her job difficult for the meteorologist. This is because the weather models. which are “committed” to the weather switzerland: ex-hurricane dexter could local conditions, make great effort to correctly grasp the effects of such tropical miscurderers. So you should not be surprised if the weather forecasts will have greater uncertainties than usual next week.
Incidentally, Dexter shouldn’t be the last tropical storm that interferes in the local weather. The hurricane season on the Atlantic usually reached its peak in September.
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