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Το Σαας Φε μπορεί δικαιολογημένα να χαρακτηριστεί ως χειμερινός παράδεισος. Ο Γιάννης Καθαρόπουλος μας στέλνει λίγη από τη μαγεία του μέρους σε φωτογραφίες.

 

Είναι 13/12/2020 και το Σαας Φε είναι αναμενόμενα χιονισμένο. Η μαγευτική περιοχή βρίσκεται σε υψόμετρο περίπου 1700 μέτρων, κατοικείται από 1400 περίπου μόνιμους κατοίκους και περιβάλλεται από 13 κορυφές βουνών που ξεπερνούν τα 4000 μέτρα. Είναι τοποθετημένο κοντά στους παγετώνες Dom και Allalinhorn προσφέροντας έτσι ευκαιρία για χειμερινά σπορ όλο τον χρόνο.

Μιας και οι περιστάσεις μας θέλουν φέτος καθηλωμένους εντός των τειχών, οι φωτογραφίες του Γιάννη Καθαρόπουλου μας ταξιδεύουν σε κάτι αρκετά πιο γιορτινό και χειμερινό από την Ελλάδα.

 

Νωρίτερα σήμερα (13/12/2020), ο Γιάννης Καθαρόπουλος έκανε ζωντανή μετάδοση από το μέρος στο ελληνικό τηλεοπτικό κανάλι OPEN, στην εκπομπή της Φαίης Μαυραγάνη “Τώρα ό,τι συμβαίνει“.

 

We are travelling to Zurich to get some Christmas spirit in the snowy city of Switzerland. The snow depth exceeds 15cm at places.

 

The members of the NorthMeteo.gr group mostly love snow more than other weather phenomena. Most of us wish at least once a year to wake up in the morning and face some fresh snow out of the window. This happened this morning to Ioannis Katharopoulos, who now lives in Witikon, an area of Zurich. The area is located at an elevation of 550-660 metres. The snow depth in this region exceeded 15cm in just a few hours this morning. In the meanwhile, the centre of Zurich got white and snowy too.

 

In this article, you may see a video and lots of photos showing the snowy area of Witikon this morning. You may also see a great view of the centre of Zurich at the end, where the snow depth was significantly lower.

 

It should be highlighted that in the next days the possibility for a series of new snow episodes is fairly high!

 

 

 

 

      

This is the fourth in a row morning of such low minimum temperatures over the mainland of Greece. Check out the table with today’s lowest temperatures.

 

Last Saturday’s morning, the temperature in the classicaly coldest mid-level ground of Greece (Nevrokopi of the county of Drama) dropped to -8.1°C. However this is not the only place in Greece with negative temperature in the morning.

Most areas in northern Greece (mostly in districts of Macedonia, Thrace and Epirus) come along with frosty patches the last four mornings. In the following table you may see some of the lowest minimum temperatures of today.

 

 

It is also impressive the temperature range in the plateau of Nevrokopi, where temperature drops to fairly low temperatures in the morning, but the raises by 14 to more than 20°C in the same day. The following diagrams come from the automatic weather station of northmeteo.gr network in Nevrokopi:

November is typically a wet month, when weather and atmospheric depressions start to activate. However, this will not happen this year. Let’s have a look at Europe’s weather in this November.

 

This dry begining of November seems to remain for most of the current month for the major part of Europe. An extensive anticyclone is covering and will be covering central and northern parts of Europe for at least the next fortnight blocking any weather activity. In the meanwhile a low pressure system over the North Atlantic Ocean will be trying to advect some moisture over the very west parts of Europe (UK, Portugal, western Spain, western France) causing some occasional rain, but that’s all. Definitely, we expect foggy and frosty mornings at places far from the sea for most of central and eastern parts of Europe. It is highlighted that temperature will gradually drop in eastern Europe, while the weather will be active only around the eastern Mediterranean Sea. At this region, we expect some rain and snow over hills/mountains (>800-11000 metres of altitude in average).

 

Looking further to the future, this circulation pattern seems to stay for longer. Although the low pressure system over the North Atlantic Ocean will tend to enhance, will be blocked there till 20/11/2020 affecting only the very west parts of Europe. Anticyclonic fields will be preserved over north and southwestern Europe making the weather fairly dry for the season, while again the only weather activity will be possibly observed in southeastern Europe, which will be affected by russian cold air masses.

It should be noted that this is a brief discussion of what we see in the forecasting models today. Weather trends may change as we move towards the second half of this month.

 

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Another cool summer for the south and warm for the north is on track. A heat wave occurred the last 5 days in southeast, which is gradually coming to an end. Let’s have an overview of the early August weather.

 

In particular, after the first attempt of August to bring some cooler air in the southeast, there will be a second one much more successful within the upcoming week. The temperature is going to drop to May levels, while convective weather will affect most of Balkans, Italy and the mainland of Greece for around 3-5 days. The reason is a new atmospheric depression in the middle troposphere, which will move from central Europe to the east-southeast affecting the southeast corner of Europe with temperature drop and thunderstorms/rain. In contrast, the weather will be improved over west and north Europe especially after 7/8/2020 with 30’s coming up in many places, even in south England and southern of Scandinavia for at least 3-5 days.

 

In case you are going to visit southeast Europe, you may face the following situation:

a. Thunderstorms or showers may be severe at times and places around afternoon

b. South Aegean islands demonstrate the least possibility for thunderstorms or any weather.

c. The temperature drop will be significant with maximum values in continental areas around 30-32°C or less and minimum around 20°C or less.

d. Northerlies will be dominant over the seas exceeding in some cases 70km/h.

e. Unsettled weather may continue till 10/8/2020.

 

 

 

 

This June seems to be weird with dry and warm weather in north and cool-rainy in south Europe. This is gonna change in the next days, but for how long?

 

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According to the latest weather data, the atmospheric depressions in the ten-day period will follow a northern track. This will allow cooler, rainier and windier conditions in the north, while a fair weather system will shield south Europe for a while with dry and sunny weather.

In particular, Europe will be divided into two areas, a northern with unsettled or almost autumnal weather and a southern with dry and sunny weather around the average of the season. The regions from the north of Spain, France, north of Italy, north of Balkans and further to the north will be affected by coll, windy and rainy weather at times. Interestingly, there is even a possibility for some occasional snowfalls over Scandinavian mounts. Regions around north Spain, south France, north Italy, Switzerland and north-northwest Balkans will be mostly affected by afternoon/evening thunderstorms, which may be severe at places.

In south Europe, unsettled weather will make a break with warmer and drier conditions (around average). There is just a possibility for showers over the mounts of the northern areas of this region. Small possibility also occurs for a heat wave in south Iberia, south Italy and Cyprus.

 

This situation will be preserved till 4-6/2020, when unsettled weather will be back in south-southeast, while warm air masses may prefere again a northern track!

 

 

 

The weather seems to remain unsettled for the most of Europe the next ten days of June. Watch how this unsettled weather will be distributed over our continent.

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In particular, for the period 10-20/6/2020:

1. The rise of the Azores anticyclone with a final destination over Anticyclone is expected to cause the formation of a new low pressure system over the northwest of Europe. This weather system will be followed by consecutive rain bands and zones of strong winds at times and places in the UK and France, while the temperature will remain around or below the average. In contrast, Scandinavia will face fairly warm and dry conditions with temperature much above the average.

2. At the same time, colder air masses will slide to the southwest from Russia affecting the Balkans, Switzerland, Italy, and Iberia with convective weather mostly in the afternoon. The temperature in all these regions will be fluctuating around the average.

3. No heat wave is expected this period over Europe. The only exception is some possibility for short periods of occasionally warm weather in Iberia.

4. From the regions mentioned in 2, the Balkans (till northern Greece, the southern of Germany and Switzerland appear to be highly likely to be affected by heavy thunderstorms at times.

 

The current article is just an estimation of the possible average situation over Europe the period 10-20/6/2020 over Europe.

 

The year 2020 has been characterised by the fact that no season has presented its weather traits. Moving into summer, we should expect the weather to get warmer, but what we should actually expect?

1 The period 1-5/6, we should expect the Azores antticyclone to raise over the north Atlantic Ocean. This will not affect directly the weather of southeastern Europe.

2a. The raise of the anticyclone will allow colder air masses from Greenland and the Arctic Ocean to move to lower latitudes, causing the formation of a deep atmospheric depression and possibly an organised low pressure system or a family of low pressure systems over Scandinavia. This will affect the weather of central and mostly northern Europe (including the UK) with a different (comparing to the previous period) unsettled pattern of weather with rain and strong winds at times.

2b. These colder air masses may move slightly far to the southwest affecting even Iberia and parts of Italy with some convective weather during afternoons.

3. Finally, the period 5-9/6, all the previously mentioned situation will push some warmer air from Africa to southeastern Mediterranean affecting southern regions of Italy and southern Balkans (mainly Greece) with warmer weather as thermometers may record again max temperatures large than 30s over continental areas.

 

However, it is important that according to the current data, all this situation will not remain for a prolonged period. Unsettled and chilly weather may return in central and southern Europe after 10/6 as the trapped cold air mass in central Europe tends to last for long and move further to the south.

 

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A system in central Europe causes short change of the weather with snow at places in central Europe and Germany.

 

The cause of this weather change is a cold front crossing central eastern Europe. We collected a few videos from youtube showing this situation this early morning. Videos come from places around 400 meters of elevation. However, snow occurred even over low levels at places.

 

 

 

 

Having experienced an extra mild winter across the entire Europe, this is actually the first time that the atmospheric circulation looks interesting.

 

 

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There are remarkable signs showing that the weather will change within February spreading arctic cold and snow in Europe. The cause is the already predicted breaking of the polar vortex during the current week. We should make clear that when we say “polar vortex” we refer to a solid cold air mass with a structure along the profile of the troposphere reaching the stratosphere, which is located geographically within the arctic circle. One of the reasons that this vortex is developed during the winter is the lack (or the limited) sunlight.

When this air mas breaks being intruded by anticyclonic systems, then the equilibrium in the circulation of the north hemisphere is perturbed and a part of this cold air mass moves southwards.

This time, there are reliable signs that the weather will change significantly in Europe this last month of the winter. In early February, we should expect one severe cold outbreak in northeast America, which should come with severe cold and snow there. However, this will be just the beginning as it will affect through a domino effect the weather of Europe perturbing the equilibrium between cold and warm air masses in north hemisphere (figure 1).

For now, it is a bit of unknown how exactly this arctic mass will move over Europe. The most of scenarios keen on moving the cold to the central/east of Europe. However, there are a few possibilities that this arctic mass will move westwards.

In any case, every meteorologist that respect himself and his scientific identity should highlight the fact that all this syllogism is based in possibilities and it is not a forecast yet.

 

 

 

Figure 1 – Evolution of the circulation pattern over northern hemisphere in February 2020