Significant Tornado Events - Global Edition

[Frique]

It should be noted that official reports mention seven tornadoes on June 24th and 25th, 1967: Le Pommereuil, Palluel, Davesnecourt, Argoules, Oostmalle, Chaam, and Tricht. However, our research has uncovered an eighth tornado in Boezinge, Belgium on 25 june. We believe it may have reached an intensity of F3. Other tornadoes could still be discovered

 

[TornadoesUK]

It should be noted that official reports mention seven tornadoes on June 24th and 25th, 1967: Le Pommereuil, Palluel, Davesnecourt, Argoules, Oostmalle, Chaam, and Tricht. However, our research has uncovered an eighth tornado in Boezinge, Belgium on 25 june. We believe it may have reached an intensity of F3. Other tornadoes could still be discovered

I discovered another possible tornado to the west of that one. It felled several trees and decently damaged a farm. https://westhoekverbeeldt.be/ontdek...36/media/00d7b34e-1c25-180d-f47c-6ae5ae9d96f8

Proven: windhoos over het dorp

Van deze hoeve in de Terenburgseweg werd toen een windhoos over Proven trok het dak afgerukt. Het is tot nog toe niet geweten in welk jaar dit gebeurde.

westhoekverbeeldt.be

 

[TornadoesUK]

I also found this tornado in the far southern Netherlands. It struck a campsite toppling trees and damaging roofs. No injuries were reported.

 

[Frique]

I discovered another possible tornado to the west of that one. It felled several trees and decently damaged a farm. https://westhoekverbeeldt.be/ontdek...36/media/00d7b34e-1c25-180d-f47c-6ae5ae9d96f8

Proven: windhoos over het dorp

Van deze hoeve in de Terenburgseweg werd toen een windhoos over Proven trok het dak afgerukt. Het is tot nog toe niet geweten in welk jaar dit gebeurde.

westhoekverbeeldt.be

View attachment 50479View attachment 50480View attachment 50478

Yes, it's possible this was another tornado incident, but I didn't find anything during my research that would allow me to determine whether it was indeed a tornado that caused the damage, or a downburst.

 

[TH2002]

Yes, it's possible this was another tornado incident, but I didn't find anything during my research that would allow me to determine whether it was indeed a tornado that caused the damage, or a downburst.

The damage to that farm looks more like downburst damage to me. The roof in the first photo looks like it was sort of just blown down into a heap, and all the trees in the second photo are felled in the same direction.

 

[WeathermanLeprechaun]

I posted about this event in broader detail earlier on a few days ago but in January 2007, quite the mixed bag of a event struck Europe. My area sustained some of the highest wind gusts ever recorded in the vicinity (92 mph wind gusts) and additionally a significant tornado outbreak from the outer bands of the system in Germany a few days later.


This event is not well documented for a odd reason and as a matter of fact, even Tornado Archive doesn't document the two F3 tornadoes that stuck this day from Cyclone Kyrill. A intense windstorm, blizzard and a DERECHO with intense tornadoes inside it. It occurred in a HSLC setup, but the bow echo was able to implement intense forcing with extreme low level wind shear at play. Quite a extraordinary setup for Europe in the winter. This is a ERA5 sounding. It has no instability but I would bet somewhat there was a little bit of CAPE at play even if just 150-200.

Since this event is obscure, the only real information i could find is that the most intense tornado of the day leveled four buildings in Kahla and according to surveyors, some of the damage mightve reached T8 which is equivalent to a F4. Wish this event had more avaliable because it is very intriguing. I was unable to find anything else from the other F3.

 

[slenker]

I posted about this event in broader detail earlier on a few days ago but in January 2007, quite the mixed bag of a event struck Europe. My area sustained some of the highest wind gusts ever recorded in the vicinity (92 mph wind gusts) and additionally a significant tornado outbreak from the outer bands of the system in Germany a few days later.


This event is not well documented for a odd reason and as a matter of fact, even Tornado Archive doesn't document the two F3 tornadoes that stuck this day from Cyclone Kyrill. A intense windstorm, blizzard and a DERECHO with intense tornadoes inside it. It occurred in a HSLC setup, but the bow echo was able to implement intense forcing with extreme low level wind shear at play. Quite a extraordinary setup for Europe in the winter. This is a ERA5 sounding. It has no instability but I would bet somewhat there was a little bit of CAPE at play even if just 150-200.

Since this event is obscure, the only real information i could find is that the most intense tornado of the day leveled four buildings in Kahla and according to surveyors, some of the damage mightve reached T8 which is equivalent to a F4. Wish this event had more avaliable because it is very intriguing. I was unable to find anything else from the other F3.

That hodograph is astonishing. 100 knots of westerly flow at 3 km AGL? You’re telling me this happened in Europe, in the winter?

I’m gonna have to take a good look at this event now.

EDIT: Is this in km/hr? That would make a bit more sense.

 

[WeathermanLeprechaun]

That hodograph is astonishing. 100 knots of westerly flow at 3 km AGL? You’re telling me this happened in Europe, in the winter?

I’m gonna have to take a good look at this event now.

EDIT: Is this in km/hr? That would make a bit more sense.

It's taken from Chase Archive and i don't believe it is km/hr either. That is the result of a extremely intense windstorm with a derecho piled on top. Simply volatile shear profiles.

 

[Frique]

I posted about this event in broader detail earlier on a few days ago but in January 2007, quite the mixed bag of a event struck Europe. My area sustained some of the highest wind gusts ever recorded in the vicinity (92 mph wind gusts) and additionally a significant tornado outbreak from the outer bands of the system in Germany a few days later.


This event is not well documented for a odd reason and as a matter of fact, even Tornado Archive doesn't document the two F3 tornadoes that stuck this day from Cyclone Kyrill. A intense windstorm, blizzard and a DERECHO with intense tornadoes inside it. It occurred in a HSLC setup, but the bow echo was able to implement intense forcing with extreme low level wind shear at play. Quite a extraordinary setup for Europe in the winter. This is a ERA5 sounding. It has no instability but I would bet somewhat there was a little bit of CAPE at play even if just 150-200.

Since this event is obscure, the only real information i could find is that the most intense tornado of the day leveled four buildings in Kahla and according to surveyors, some of the damage mightve reached T8 which is equivalent to a F4. Wish this event had more avaliable because it is very intriguing. I was unable to find anything else from the other F3.

The cold front associated with Storm Kyrill did indeed produce numerous severe thunderstorms, including tornadoes, in Germany. Winds associated with the front also exceeded 130 km/h, particularly in Belgium.

Here is an interesting document about this event.

https://nhess.copernicus.org/articles/9/405/2009/nhess-9-405-2009.pdf

 

[WeathermanLeprechaun]

The cold front associated with Storm Kyrill did indeed produce numerous severe thunderstorms, including tornadoes, in Germany. Winds associated with the front also exceeded 130 km/h, particularly in Belgium.

Here is an interesting document about this event.

https://nhess.copernicus.org/articles/9/405/2009/nhess-9-405-2009.pdf

That's a nice document to read while I recover from a very sore foot after running a few days ago and tripping on it.... Truly a anomalous yet exceptional storm in all ways, including over in my area while I am biased haha. I have recently grown interest in windstorms. Maybe start a page about them?

 

[Frique]

Officially, there were two F5 tornadoes in France: the one on June 24, 1967, in Palluel, and the one on August 19, 1845.
Regarding the Palluel tornado, as I mentioned earlier, I haven't found any damage that would qualify as an F5.

For Montville, it's more complicated. In your opinion, could it have been of such intensity, given the reports and observations from that time?

La trombe de Montville en 1845 - Cercle Généalogique du Pays de Caux - Seine-Maritime

Le dérèglement climatique qui multiplie les tornades, cyclones, inondations, canicules, n'est pas un phénomène nouveau. Un regard dans le passé, (…)

www.geneacaux.fr

Tornade à Montville (Seine-Maritime) le 19 août 1845. Tornade EF5 en Seine-Maritime (76), région Haute-Normandie - Trombe de Montville. Tornade F5 en France - KERAUNOS

Tornade de Montville : une tornade meurtrière d'intensité extrême (EF5) ravage la vallée du Cailly (Seine-Maritime) le 19 août 1845, lors d'un outbreak. Orages en France, tornades en France, tornade Montville 1845, cyclone Malaunay 1845, trombe Malaunay 1845, trombe Montville 1845, trombe vallée...

www.keraunos.org

Tornade de Montville — Wikipédia

fr.wikipedia.org

 

[Frique]

Among the most intense European tornadoes of the 21st century, we can undoubtedly mention the one that struck the town of Hautmont on August 3, 2008. While it pulverized a recently built house, leaving only a few sections of wall, one of the most significant damages, in my opinion, was to an older house with thick brick walls. The walls of old French brick houses are generally very solid, and it takes incredible force to demolish them. The F3 level is almost certain, but do you think it could have reached F4 level? Here is a very well-done report (in Dutch) on this memorable event.

 

[TH2002]

Among the most intense European tornadoes of the 21st century, we can undoubtedly mention the one that struck the town of Hautmont on August 3, 2008. While it pulverized a recently built house, leaving only a few sections of wall, one of the most significant damages, in my opinion, was to an older house with thick brick walls. The walls of old French brick houses are generally very solid, and it takes incredible force to demolish them. The F3 level is almost certain, but do you think it could have reached F4 level? Here is a very well-done report (in Dutch) on this memorable event.




View attachment 50784

Solid F4. Not even debatable. European masonry homes are much heavier and more wind-resistant than wood-framed homes, and don't even need to be totally leveled to ascertain violent intensity.

The 2021 South Moravia IF4 managed to completely level only a handful of structures, and was actually considered for an IF5 rating in a few small areas (rightfully so, in my opinion, given the incredible contextual damage).

While not every masonry structure is eligible for a violent rating, homes usually are, and Hautmont certainly meets the criteria.

 

[Lake Martin EF4]

Among the most intense European tornadoes of the 21st century, we can undoubtedly mention the one that struck the town of Hautmont on August 3, 2008. While it pulverized a recently built house, leaving only a few sections of wall, one of the most significant damages, in my opinion, was to an older house with thick brick walls. The walls of old French brick houses are generally very solid, and it takes incredible force to demolish them. The F3 level is almost certain, but do you think it could have reached F4 level? Here is a very well-done report (in Dutch) on this memorable event.




View attachment 50784

Not an F4 candidate, solely because it already has a (well deserved) F4 rating from the ESWD.

 

[HPSupercell]

On July 4, 1929 - Possibly one of the strongest derecho events ever recorded occurred over Austria and Czech Republic. Multiple limestone homes and forests were flattened.

Several tornadoes were reported (IF3-IF4), and some of them are listed by the ESWD as tornadoes, especially the events from Dolany (Czech Republic) and Padurbice (Czech Republic). Still, no source is reporting tornadoes and most of the extraordinary damage was produced by several extremely powerful downbursts (>250 km/h). In fact, the extreme wind event was described to have lasted more than 20 minutes, over the same areas.

Chronicles report that the storm came like a sudden big burst/explosion.

 

[Ivanthetornadoenthusiast]

This might be the only known instance of Argentina violent tornadoes having a funnel photograph.

December 11th, 1979 Villa Ciudad de Américas F4-F5

 

[SpotlightForRareTornadoes]

This might be the only known instance of Argentina violent tornadoes having a funnel photograph.

December 11th, 1979 Villa Ciudad de Américas F4-F5
View attachment 50876

Looks like this is Argentina's Pampa! This is so high-quality!

 

[Frique]

Among the most violent tornadoes to hit Belgium, the one of September 20, 1982, remains etched in memory. Classified as an F3 tornado, this whirlwind severely damaged numerous stone-walled houses in the village of Léglise. Personally, I don't rule out a higher intensity, given the sturdiness and thickness of the walls.

https://www.belgorage.be/wp-content/uploads/2018/12/1982-09-20-tornade-de-leglise.pdf

 

[TornadoesUK]

ESSL has added a page on their website which lists all their re-analyses of tornadoes that have been upgraded to IF5: https://www.essl.org/cms/european-severe-weather-database/violent-tornadoes/

 

[TornadoesUK]

More details on the Italian IF5s can be found here: