Obviously spring is a season of unsettled weather with ups and downs. However, this spring seems to follow almost strictly wintry or summer patterns.


In the satellite image you may observe snow covered Scandinavia and African dust over southeast Europe.


You may see the current observations in Thessaloniki HERE.

During the last week, extreme weather was observed across Europe forming a weather dipole between north and south countries. Snowfalls occurred in Scandinavia and Russia, while an unusual heat wave for the season took place in Greece.

In particular, the temperature in northern Europe was observed to be in general higher than the average for May by 8-10°C (without breaking any record). However, negative temperatures were observed in many places (e.g. in Stockholm the temperature dropped to -2°C ον 14/5/2020). In the following chart you may see temperature deviations from the temperature average of this season on 16/5/2020. It should be highlighted that the entire week (11-17/5/2020) the situation was more or less in the same pattern.



In contrast, in the southeast corner of Europe, we observed the highest temperatures ever for the month of May. In Athens and Thessaloniki (two biggest cities in Greece) the temperatures reached the extreme highest values for this month (36°C and 33°C respectively). The highest ever temperature for May was recoerded in southern Greece, in Sparta, where the weather station recorded a highest value of slightly above than 40°C.

The following videos showing this weather contrast over Europe. The first three videos come from Russia and Norway:


In contrast, Greeks searched for a cool place by the sea close by the large urban regions. The first video is from Epanomi (Thessaloniki) and the second from Vouliagmeni (Athens):

Drifting snow obscures a road near Mount Joy in Lancaster County, Pennsylvania, on Wednesday, January 30. A bitter deep freeze is moving into the Northeast from the Midwest, sending temperatures plummeting and making road conditions dangerous.

Extremely cold temperatures were spreading across the United States this week as a mammoth blast of frigid air sweeps through the Midwest and heads toward the East.

More than 83 million Americans — about 25% of the US population — will suffer sub-zero temperatures sometime between Wednesday and Monday.

Snowplows clear Williamson Street in Madison, Wisconsin.Amber Arnold/Wisconsin State Journal via AP

Al Ross uses a snowblower on his driveway in Minneapolis.Richard Tsong-Taatarii/Star Tribune via AP

 An icy Chicago River is seen from Adams Street on January 28.Rich Hein/Chicago Sun-Times via AP

Emily Pieper leads cows to the milking parlor at Metogga Lake Dairy in New Prague, Minnesota, on January 30.Jerry Holt/AP

Firefighters in St. Paul, Minnesota, work at the scene of a house fire on January 30.David Joles/Star Tribune via AP

Pedestrians walk through a winter storm in downtown Cincinnati on January 30.Albert Cesare/The Enquirer/USA Today

Geese huddle in the water as the sun rises at the harbor in Port Washington, Wisconsin, on January 30.Jeffrey Phelps/AP

A man walks on Chicago’s North Avenue Beach as the sun rises over Lake Michigan on January 30.Kamil Krzaczynski/EPA/Shutterstock

A woman crosses a street in Buffalo, New York, on January 30.Lindsay Dedario/Reuters

A Newfoundland dog stands on a bench as snow flurries hit New York City on January 30.Adam Gray/Barcroft Media/Getty Images

A warning sign is covered by ice at Clark Square Park in Evanston, Illinois.Nam Y. Huh/AP

Pedestrians walk along Michigan Avenue in Chicago, above the frozen Chicago River, on January 29.Kamil Krzaczynski/EPA/Shutterstock

Metra train tracks, seen outside of Western Avenue Station, are heated with gas-fired switch heaters on January 29. The heaters help prevent switching problems in extremely cold weather.Kiichiro Sato/AP

The aftermath of a road accident is seen in Grand Rapids, Michigan, on January 29.Jason Coffelt via Reuters

A tour group visits the Lincoln Memorial as snow blankets Washington on January 29.Jonathan Newton/The Washington Post/Getty Images

A cyclist braves the heavy frost in Minneapolis.Kerem Yucel/AFP/Getty Images

A pedestrian stops to take a photo by the frozen Chicago River.Pinar Istek/REUTERS

The sun rises over the Chicago lakefront on January 29.Jose M. Osorio/Chicago Tribune/TNS/Getty Images

”They’re going to call me ‘wife of the frozen pants guy’ in my obituary,” joked Karla Grotting when asked about her husband Tom’s annual tradition of freezing clothing for their yard in northeast Minneapolis.Anthony Souffle/Minneapolis Star Tribune/ZUMAPRESS.

Frost covers parts of University of Minnesota student Daniel Dylla’s face during a morning jog on January 29.David Joles/Star Tribune/AP

Jeremy Buckta of Manitowoc, Wisconsin, snow blows his driveway in whiteout conditions on Monday, January 28.Joshua Clark/Herald Times Reporter/USA TODAY

Nathan Tearman, front, and his brother James shovel the driveway of their home in Janesville, Wisconsin, on January 28.Anthony Wahl/AP

Tow-truck personnel work to remove an overturned semi on the median of Interstate 90, southeast of Rochester, Minnesota, on January 28.Joe Ahlquist/The Rochester Post-Bulletin via AP

Weather is expected to be very different form western to eastern Europe this weekend. Let’s see these weather contrasts that are going to be settled on 22-24/2/2019.


While the weather will remain dry and warm over western Europe with African dust reaching even the southern UK and temperatures exceeding 20°C in Iberia and southern France, an extreme cold wave with heavy snowfalls and temperatures less than -10°C at places will affect eastern Europe and Balkans.

In the next map we summarise all the weather extremes that are going to take place in Europe between 22th and 24th of February 2019.

At least 12 people have died due to the breaking of polar vortex, a phenomenon that affects the northern parts of the US.


The authorities have instructed that schools will remain closed and places for homeless people will be available for use. Hundreds of train services and flights have been canceled.



In the mid-western states, the temperature has dropped below -45°C. Snowfall are expanding over eastern regions.

Although forecasters inform that the temperature will increase in the weekend, this does not seem to be a relief, as strong winds will be preserved and the temperature will remain around -34°C.


Today, the temperature dropped to -29°C in Minnesota and Michigan and to -34°C in north Dakota.

Now, the cold intrusion is moving towards eastern regions, such as Massachusetts, New York and Pennsylvania. In Boston, the temperature dropped to -21°C.

According to media and authorities, 12 deaths have been caused by this cold outbreak since last Saturday in mid-west US. Some of them are dead due to car accidents, while others by the extreme weather.

Videos on youtube show people to drop boiled water in the air, which instantly freezes, while train officers get fire on train rails in order to avoid any contraction.

In the meanwhile, more than 30 temperature records have been observed in the mid-west US (-40°C in International Falls of Minnesota, -30°C in Chicago).

Extreme cold conditions caused hundreds of car accidents and a pile up of 20 cars in Grand Rapid of Michigan. Moreover, 2500 flights are canceled and more than 3500 are delayed this morning. Post offices stopped their services to many American states today.

In the broad region of Great Lakes, these extreme conditions have caused unusual natural phenomena (e.g. a part of the Niagara falls has literally been frozen).



After an extensive period of mild weather conditions over almost entire Europe, the weather is expected to change bringing some wintry spells in eastern parts of our continent within the last ten days of October.

In particular, from 20/10/2018 and then an anticyclonic system will be developed over west-northwest Europe, which will lead to mostly dry weather conditions with foggy mornings especially in the UK and France. However, at the end of the month there is a possibility for some rain episodes here.

Simultaneously, consecutive weather systems from north Atlantic ocean will move toward Scandinavia affecting these places with rain, snow over hills/mountains and strong winds at times.

In west Mediterranean, we should expect unsettled conditions with rain/storm episodes, but also some sunny spells.

As we move towards the middle/end of this period, colder air masses will pass through Scandinavia reaching regions of eastern Europe and even Balkans affecting them with a short passage of rain and snow over lower grounds.

Finally, in eastern Mediterranean we should expect the weather to gradually change into an autumn pattern with cloudy weather and rainfalls at times. Snowfalls may occur over mountains. Although the possibilities are low, these regions may be affected by more than one systems with rain, which may be heavy at places.

You can keep yourself informed for the latest weather news or even share your weather experience on our group on facebook, but also on our channel on youtube.

The present article describes the general trend of the weather as it is illustrated by the global weather models and it is not a forecast. The weather may significantly differ at places.



Ακόμη μία από τις περιοχές που σπανιότατα καταγράφουν το φαινόμενο της χιονόπτωσης ντύθηκε στα Λευκά. Τα ρεκόρ σπάνε το ένα μετά το άλλο κατά τη διάρκεια της τρέχουσας κακοκαιρίας “ΑΡΙΑΔΝΗ”. Αποκλειστικές φωτογραφίες μας παραχώρησαν οι: Αλέξανδρος Ποραλης και Βικτωρία Πριονά.





This is a first estimation (by the group) of what we should expect around 11-13/12/2016 and then in Europe.
Significant redistribution of the air masses in Europe is going to take place in the middle of the current month (and especially between 11-13/12/2016). Weather seems to get fairly wintry in eastern Europe, while western parts (of Europe) will be “well-protected” by the Azores ridge from any significant weather activity.
In particular, Azores ridge will possibly move northwards, as it is going to be pussed by the atlantic trough (and actually the jet stream over the Atlantic). This ridge movement will make polar air masses move southwards affecting the weather of eastern Europe with wintry conditions, low temperatures and snow. Snowfalls should be mainly expected in eastern Mediterranean (especially parts of Greece and Turkey), maybe in a severe way. In contrast, weather in west and central Europe will not particularly change as it is mentioned above. The possibility of the circulation depicted in the attached map is ~60%.