This is a list of tornadoes that have been rated officially or unofficially on the International Fujita scale (IF-scale). The International Fujita scale was drafted in 2018 by the European Severe Storms Laboratory (ESSL) along with multiple European meteorological agencies.[1] As of 2023, the scale is not officially published for use, however, various tornadoes have received official/unofficial ratings under the scale. Since the scale is not officially in use, official ratings can only come from published academic papers or analyses from a government meteorological agency or from the European Severe Storms Laboratory and their partners. On May 6th, 2023, version 0.99.9d was published, which changed it to a 9-step rating scale.[2] This replaced the 12-step scale used to rate tornadoes on this list.
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List
At least 40 tornadoes received an official or unofficial rating on the 2018 draft version of the International Fujita scale, with official ones in the Czech Republic, Denmark, Italy, Russia, Greece, Germany, Turkey, Poland, Norway, Sweden, Netherlands, Cyprus, Spain, Slovak Republic, and in France, and two unofficial ones in the United States.
| IF-scale rating | Day | Year | Country | Subdivision | Location | Notes | Rated by |
|---|---|---|---|---|---|---|---|
| IF0+ | October 16 | 1942 | Denmark | Kalundborg Kommune | Føllenslev | A tornado destroyed the roof of a hay barrack. The tornado was given an F0 rating on the F scale, T1 on the torro scale, and an IF0+ rating on the IF scale due to the roof damage[3] | ESSL |
| IF2 | May 16 | 1953 | Denmark | Kolding Municipality | Hejls | A strong tornado deroofed several homes, damaged a forest & tossed a chicken barn up to 3 kilometers. The tornado was given an F2 rating on the F scale, and an IF2 rating on the IF scale due to the roof damage[3] | ESSL |
| IF2- | September 6 | 1954 | Denmark | Fredericia Municipality | Nørremark | This strong tornado earned an F2/T4 rating, and an IF2- rating on the IF scale when it overturned a car[3] | ESSL |
| IF2+ | September 9 | 1955 | Denmark | Kolding Municipality | Kolding | An intense tornado displaced a car 20 meters into a yard, earning an F2/T5 rating, and an IF2+ rating on the IF scale[3] | ESSL |
| ≥IF2+ | May 10 | 2015 | Germany | Bavaria | Affing | An intense tornado that destroyed trees and badly damaged or destroyed numerous structures. This tornado was rated F3 on the Fujita scale and T6 on the TORRO scale. In the initial publication of the draft version of the IF scale, damage to a sturdy house from this tornado was rated ≥IF2+.[1][3] | ESSL |
| IF4 | July 8 | 2015 | Italy | Riviera del Brenta | Dolo, Mira, Veneto | A violent tornado that damaged or destroyed numerous structures, with a few pockets of damage being rated F4 on the Fujita scale. In the initial publication of the draft version of the IF scale, two locations from this tornado that were rated F4 were identified and rated as IF4.[1][3] | ESSL |
| IF1+ | November 10 | 2017 | Germany | Brandenburg | Barenthin | A short-lived tornado that caused the destruction and collapse of an old house, damage to multiple other structures, and multiple trees were snapped. This tornado is rated F1 on the Fujita scale and T3 on the TORRO scale. In the initial publication of the draft version of the IF scale, damage to a shed from this tornado was rated IF1+.[1][3] | ESSL |
| IF1 | April 27 | 2018 | Sweden | Jönköping County | Värnamo | A tornado struck the Industrial district of Värnamo. Several roofs were damaged, windows were destroyed & objects were thrown. The tornado received an F1 rating on the Fujita scale, but was rated IF1 on the IF scale. It was noted that it may have reached IF1+ or IF2- intensity.[3] | ESSL |
| IF2 | May 11 | 2018 | Sweden | Östergötland County | Vårdsberg | A strong tornado snapped & uprooted several spruce trees at a forest edge. This tornado received a rating of F2 on the Fujita scale & was given a rating of IF2 on the IF scale.[3] | ESSL |
| IF1+ | June 14 | 2019 | Denmark | Aabenraa Municipality | Kruså | Several trees were downed & a garage were destroyed by this tornado. This tornado is rated F1 on the Fujita scale and T3 on the TORRO scale. The tornado received an IF1+ rating on the IF scale because of the collapsed garage.[1][3] | ESSL |
| IF2- | June 14 | 2019 | Denmark | Region of Southern Denmark | Åbenrå | This strong tornado overturned cars in a hospital parking lot. The main rating of this tornado was F2 on the Fujita scale and T4 on the TORRO scale. At an ESSL tornado-workshop on the IF-scale, this tornado was rated IF2- based on overturned cars.[3] | ESSL |
| IF1 | August 10 | 2019 | Denmark | Helsingør Municipality | Ålsgårde | A tornado that broke branches off oak trees that had a diameter up to 20 centimetres (7.9 in). The main rating of this tornado is F1 on the Fujita scale, however, the tree damage received an intensity rating of IF1.[3] | ESSL |
| IF2 | May 29 | 2020 | Russia | Oryol Oblast | Verkhov'ye | A strong tornado occurred in a forest, causing significant forestry damage. This tornado received a rating of F2 on the Fujita scale, however, it was noted that the extensive debarking, trunks being snapped, and additional debarking that was caused by "snapping impacts" were the reasons this tornado was given a rating of IF2.[3] | ESSL |
| IF2- | September 25 | 2020 | Denmark | Albertslund Kommune | Albertslund | This strong tornado damaged many homes and trees within a 4.4-kilometer long & 220-meter wide path. Roof tiles were stripped off homes, large trees were uprooted or snapped & tTrampoline were thrown long distances. A tree was uprooted andthen dragged up to 2 meters across the ground. The main rating of this tornado was F2 on the Fujita scale and T4 on the TORRO scale. The Tornado received an IF2- rating because it snapped several healthy trees. .[3] | ESSL |
| IF1 | November 26 | 2020 | Spain | Andalucía | Encinarejo de Córdoba | A tornado damaged some roofs & damaged windshields on a car. The main rating of this tornado is F1 on the Fujita scale, however, the roof damage received an intensity rating of IF1.[3] | ESSL |
| IF1 | December 9 | 2020 | Greece | Aitolía kai Akarnanía | Astakós | A tornado damaged some roofs. The main rating of this tornado is F1 on the Fujita scale, however, the roof damage received an intensity rating of IF1.[3] | ESSL |
| IF1+ | December 14 | 2020 | Cyprus | Nicosia | Astromeritis | A tornado associated with a squall line caused roof damage, downed signs & downed trees. tornado was rated F1 on the F scale, and an IF1+. on the IF scale[3] | ESSL |
| IF0+ | January 30 | 2021 | Turkey | Hatay Province | Tekebaşı | A Tornado damaged greenhouses & crops. The tornado earned an F0 on the fujita, T1 on the torro scale, and IF0+ on the IF scale[3] | |
| IF1 | January 30 | 2021 | Turkey | Hatay Province | Vakıflı | A Restaurant area sustained moderate damage. Garage roof torn off, roofs damaged & a pine tree were snapped. The tornado earned an F1 rating on the fujita scale, and an IF1 rating on the IF scale.[3] | ESSL |
| IF1 | February 11 | 2021 | Turkey | Balıkesir Province | Paşalimanı | A tornado overturned or threw 15 small boats into the sea & damaged roofs. A forest was also damaged. It earned an F1 rating on the fujita scale, and an IF1 rating on the IF scale.[3] | ESSL |
| IF2 | February 11 | 2021 | Turkey | İzmir Province | Alaçatı | A strong tornado damaged or destroyed several buildings, damaged or tossed boats & flipped vehicles, one of which landed behind some walls. Trees were snapped or uprooted. The tornado was given an F2 rating on the F scale, and an IF2 rating on the IF scale. 16 people were injured[3] | ESSL |
| IF1+ | March 22 | 2021 | Turkey | Yozgat Province | Külhüyük | A tornado snapped power poles, resulting in power outages & snapped trees. Some roofs sustained damage & a weak outbuilding was blown down. The tornado received a rating of IF1+, but it was noted that IF2- was possible as well.[3] | ESSL |
| IF1 | April 22 | 2021 | Slovak Republic | Košický kraj | Ortáše | A tornado caused moderate damage to buildings and trees. The tornado was given an F1 rating on the fujita scale, and an IF1 rating on the IF scale[3] | ESSL |
| IF4 | June 24 | 2021 | Czech Republic | South Moravian Region | Hrušky, Moravská Nová Ves, Mikulčice, Lužice | 2021 South Moravia tornado – A violent and deadly tornado that damaged or destroyed 1,200 structures through multiple towns. In 2021, the Czech Hydrometeorological Institute (CHMI) published a survey and analysis report of the tornado, rating it F4 on the Fujita scale. In 2022, a joint report with the European Severe Storms Laboratory and other European meteorological agencies officially rated this tornado an IF4, with at least 14 different locations of IF4 damage occurring. In Mikulčice, a well-built brick structure was completely destroyed, which would warrant an IF5 rating. However, a rather weak connection between the roof and the walls was found, which prevented the damage to be assigned an IF5 rating. This location was assigned peak windspeed estimated at 380 km/h (236.1 mph).[4][5] | ESSL, CHMI, SHMÚ, Charles University, Tomáš Prouza |
| IF1 | October 12 | 2021 | Turkey | Muğla Province | Selimiye | A tornado caused moderate damage to buildings and trees. The tornado was given an F1 rating on the fujita scale, and an IF1 rating on the IF scale[3] | ESSL |
| IF1+ | October 21 | 2021 | Netherlands | Zuid-Holland | Barendrecht | A tornado associated with Storm Aurore hit Barendrecht. Roof tiles were stripped off homes, trees were uprooted & cars were moved. The main rating of this tornado is F1 on the Fujita scale, however, the car sliding received a rating of IF1+. 4 people were injured.[3] | ESSL |
| IF0+ | November 2 | 2021 | Turkey | Mersin Province | Tisan | A Tornado damaged roofs, downed trees, small fisher boats lifted or overthrown. A single small boat was thrown onto a tree. The tornado earned an F0 on the fujita, T1 on the torro scale, and IF0+ on the IF scale[3] | ESSL |
| IF1 | November 27 | 2021 | Greece | Elis Province | Palaiochori | A tornado (or tornado family) that caused damage to multiple trees, overturned cars, and caused telecommunication infrastructure damage. This tornado was rated F1 on the Fujita scale. However, Wooden power poles that were snapped by the tornado were given a rating of IF1 and damage to some roofs was given a rating of IF1-.[3] | ESSL |
| IF2- | November 29 | 2021 | Greece | Preveza | Kanali | A strong waterspout came ashore and caused significant infrastructure damage. This tornado was rated a low-end F2 on the Fujita scale; however, an IF2- rating was assigned to at least one roof that was destroyed on a "likely weak frame" house.[3] | ESSL |
| IF4 (Unofficial) | December 10 | 2021 | United States | Tennessee, Kentucky | Woodland Mills (Tennessee), Cayce (Kentucky), Mayfield, Benton, Princeton, Dawson Springs, Bremen | 2021 Western Kentucky tornado — A long-tracked wedge and ninth tornado spawned by the Quad-State supercell, that damaged, destroyed, or obliterated numerous structures along a path of 165.6 miles (266.5 km). This tornado was officially rated an EF4 on the Enhanced Fujita scale. During a thread on Twitter, Pieter Groenemeijer, the director of the European Severe Storms Laboratory, discussed the differences between the 2021 Western Kentucky tornado and the 2021 South Moravia tornado. In the thread, it was noted that one of the EF4 damage indicators would "probably be a D-class structure in the IF rating system, which gives a rating of IF4 when (almost) completely destroyed as seems to be the case here", meaning the 2021 Western Kentucky tornado would have probably been equivalent to at least an IF4 on the International Fujita scale.[6][7] | Pieter Groenemeijer (Director of ESSL) |
| IF1+ | December 19 | 2021 | Turkey | Antalya Province | Avsallar | A waterspout that came ashore, becoming a tornado that overturned a truck passing on a road along the shore. The main rating of this tornado is F1 on the Fujita scale, however, the overturned truck received a rating of IF1+.[3] | ESSL |
| IF1- | February 22 | 2022 | Turkey | Muğla Province | Yalı | A waterspout came ashore, becoming a tornado that caused damage to roofs and power lines. The main rating of this tornado is F1 on the Fujita scale, however, it is noted that a container near a local hotel was "overthrown", which received a rating of IF1-.[3] | ESSL |
| IF1 | April 7 | 2022 | Poland | Greater Poland Voivodeship | Ostrów Wielkopolski | An extremely brief tornado occurred in Poland which caused damage to structures and damaged or uprooted multiple trees along a path of 0.31 kilometres (0.19 mi). Based on damage to trees, it is believed this tornado could have been an anticyclonic tornado. This tornado received a rating of F1 on the Fujita scale, however, it was also noted that "IF1 category of damage was assigned (upper T2 / lower T3)" for certain portions of the tornadoes damage.[3] | ESSL |
| IF4/IF5 (Unofficial) | April 29 | 2022 | United States | Kansas | Andover | An intense tornado that damaged or destroyed numerous structures, including obliterating multiple poorly-anchored structures. This tornado was rated EF3 on the Enhanced Fujita scale by the National Weather Service. On October 26, 2022, at the AMS 30th Conference on Severe Local Storms, the European Severe Storms Laboratory presented evidence through photogrammetry that the tornado had winds of at least 118.0 metres per second (264 mph), with a graphic showing IF4 and IF5 intensity.[8][9][10] | ESSL |
| IF1 | June 27 | 2022 | Netherlands | Zeeland | Zierikzee | A brief, but deadly waterspout that came ashore. The main rating of this tornado was F1 on the Fujita scale. However, it was noted that rooftiles being blown off from structures by the tornado was rated IF1- and an overturned trailer was rated IF1.[3] | ESSL |
| IF1 | June 29 | 2022 | Czech Republic | South Bohemian Region | Sviny | A brief tornado that caused IF1 damage at three locations along a path of 2.3 kilometres (1.4 mi). Near the beginning of the path, two mature poplar trees were damaged, with one being uprooted and the other having significantly broken branches from the crown of the tree. Both of these trees received IF1 ratings. The tornado then entered a grove of trees, causing minor damage, except branches were broken near the upper portions of the trees, indicating IF1 damage. This tornado received a rating of F1 on the Fujita scale from the European Severe Storms Laboratory, but the Czech Hydrometeorological Institute, the Czech Republic's government meteorological agency, officially rated this tornado IF1.[11] | CHMI |
| IF1 | August 6 | 2022 | Sweden | Dalarnas län | Kallholen | A tornado that uprooted a few pine trees and received a rating of F1 on the Fujita scale and T3 on the TORRO scale. However, it was noted that the uprooted trees were rated IF1.[3] | ESSL |
| IF1 | October 16 | 2022 | Norway | Rogaland | Sandve | The first of tornadoes in Norway that day. The main rating of this tornado was F1 on the Fujita scale, however, the European Severe Storms Laboratory gave it a "maximum intensity" rating of IF1.[3] | ESSL |
| IF1 | October 16 | 2022 | Norway | Telemark | Brevikstranda | The second of two tornadoes in Norway that day. The main rating of this tornado was F1 on the Fujita scale, however, it was noted that tree damage was up to IF1.[3] | ESSL |
| IF3 | October 23 | 2022 | France | Hauts-de-France | Bihucourt | 2022 Belleuse-Bihucourt, France/Leuze-en-Hainaut, Belgium tornado – A long track tornado tracked 206 km through France & Belgium, damaging or destroying many homes. The tornado was rated F3 on the Fujita scale & IF3 on the IF scale. 1 person was injured[3] | ESSL |
See also
References
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