List of F4, EF4, and IF4 tornadoes (2020–present) explained

This is a list of tornadoes which have been officially or unofficially labeled as F4, EF4, IF4, or an equivalent rating during the 2020s decade. These scales – the Fujita scale, the Enhanced Fujita scale, the International Fujita scale, and the TORRO tornado intensity scale – attempt to estimate the intensity of a tornado by classifying the damage caused to natural features and man-made structures in the tornado's path.

Tornadoes are among the most violent known meteorological phenomena. Each year, more than 2,000 tornadoes are recorded worldwide, with the vast majority occurring in North America and Europe.[1] [2] To assess the intensity of these events, meteorologist Ted Fujita devised a method to estimate maximum wind speeds within tornadic storms based on the damage caused; this became known as the Fujita scale. The scale ranks tornadoes from F0 to F5, with F0 being the least intense and F5 being the most intense. F4 tornadoes were estimated to have had maximum winds between 207mph and 260mph and are considered violent tornadoes, along with F5 tornadoes.[3]

Following two particularly devastating tornadoes in 1997 and 1999, engineers questioned the reliability of the Fujita scale. Ultimately, a new scale was devised that took into account 28 different damage indicators; this became known as the Enhanced Fujita scale.[4] With building design and structural integrity taken more into account, winds in an EF4 tornado were estimated to between 166mph and 200mph.[5] The Enhanced Fujita scale is used predominantly in North America. Most of Europe, on the other hand, uses the TORRO tornado intensity scale (or T-Scale), which ranks tornado intensity between T0 and T11; F4/EF4 tornadoes are approximately equivalent to T8 to T9 on the T-Scale. Tornadoes rated IF4 on the International Fujita scale are also included on this list. Violent tornadoes, those rated F4/EF4 and F5/EF5 are rare and only make up 2% of all recorded tornadoes.[6]

List

Worldwide during the 2020s, 20 tornadoes have been rated F4/EF4/IF4. Eighteen of these tornadoes occurred in the United States, receiving EF4 ratings, one occurred in Canada, and one F4/IF4 occurred in the Czech Republic. These tornadoes have caused 136 fatalities and over 1,183 injuries. The most recent EF4 tornado occurred on May 21, 2024, impacting Greenfield, Iowa.

Tornadoes officially rated F4/EF4/IF4 or equivalent (2020–Present)
DayYearCountrySubdivisionLocationFatalitiesRated by
United StatesTennesseeBaxter, Cookeville19 (87 injuries)NWS
2020 Cookeville tornado — The tornado produced catastrophic damage resulting in entire portions of neighborhoods becoming flattened. Numerous fatalities occurred with at least 17 well-anchored block-foundation homes being leveled or swept away. In addition to vehicles being thrown and destroyed, many trees were denuded and partially debarked in this area, indicating EF4 damage with wind speeds rated at 175mph. Homes farther away from the center of the damage path lost their roofs and exterior walls.[7] [8]
United StatesMississippiHope, Sartinville, Bassfield4 (3+ injuries)NWS
2020 Hope–Bassfield tornado — A house was completely swept away, leaving a bare foundation slab. This house was secured to its foundation with anchor bolts, which were found bent, though nearby trees did not sustain damage consistent with a tornado stronger than low-end EF4 strength. Trees were ripped out of the ground with numerous other structures damaged or destroyed along the path of this tornado as well. The tornado caused $2.75 million (2020 USD) in damage.[9] [10]
United StatesMississippiBassfield, Cantwell Mill, Seminary, Collins, Soso, Moss, Pachuta8 (95+ injuries)NWS
2020 Bassfield–Soso tornado — In Cantwell Mill, a large, anchor-bolted cabin was completely swept away and reduced to a bare slab, with little debris recovered. While this structure was well-anchored, surveyors noted some minor structural defects including a lack of external sheathing and flawed stud-to-sill plate nailing, while trees in the immediate vicinity sustained only partial debarking. Due to these limiting factors, a high-end EF4 rating was applied. Many other structures were destroyed at EF4 intensity along the path of this tornado as well and entire groves of large trees were mowed down and completely stripped of their bark. The massive tornado reached a width of 2.25miles, making it the widest tornado in Mississippi history and the third-widest on record in the United States.[11] [12]
United StatesSouth CarolinaScotia, Estill, Nixville, Fechtig5 (65 injuries)NWS
2020 Estill–Scotia–Nixville tornado — This large, multiple-vortex tornado damaged or destroyed numerous structures. EF4 damage was inflicted on a well-built two-story home that was leveled with only a pile of debris remaining, with some of the debris scattered into the yard. The wind speed estimate in this area was 175mph. EF2-EF3 damage occurred in many other areas along the path as well.[13] [14]
United StatesMississippiHurricane Creek, Sandy Hook, Pine Burr, Purvis1 (1 injury)NWS
2020 Sandy Hook–Purvis tornado – A well-built house in southwestern Marion County was leveled and partially swept away at low-end EF4 intensity by this long-tracked tornado, and numerous other homes and mobile homes were damaged or destroyed as well. Numerous trees were also snapped and partially debarked along the path. The tornado resulted in $700,000 in damage.[15] [16] [17] [18] [19]
United StatesMinnesotaDalton1 (3 injuries)NWS
2020 Ashby–Dalton tornado — One farmhouse was swept away at low-end EF4 intensity by this tornado. A machine shop was also swept away, leaving behind mangled vehicles and machinery, trees were snapped and debarked, and visible ground scouring was noted. The tornado, described by storm chasers as resembling a "drill bit" at times, killed one person.[20] A photograph of the tornado was also used in the cover for the 2021 disaster film 13 Minutes.[21] [22]
United StatesGeorgiaFranklin, Newnan, Peachtree City0 (1 indirect fatality)NWS
2021 Newnan–Peachtree City tornado — The peak damage from the tornado came in Newnan, where multiple large and newly built homes were leveled at low-end EF4 intensity, including some that were partially swept away. Many other areas of intense damage also occurred along the tornado's path as well. The tornado prompted the issuance of three tornado emergencies and caused $20 million (2021 USD) in damage.[23] [24] [25] [26] [27]
Czech RepublicSouth Moravian RegionHrušky, Moravská Nová Ves, Mikulčice, Lužice, Hodonín6 (200+ injuries)ESSL, CHMI, SHMÚ, Charles University, Tomáš Prouza
2021 South Moravia tornado – One-third of the buildings in Hrušky were destroyed and 85% were damaged, with the most severe damage occurring in the southern half of town. In Moravská Nová Ves and Mikulčice, hundreds of buildings were severely damaged or destroyed, including a few well-built brick and masonry homes that were completely leveled. The concrete exterior walls of structures that remained standing were scarred and impaled by flying projectiles. A few trees were completely stripped clean of all bark. In the town, three locations sustained IF4 damage. The first location was a row of newly built homes. "Here, an IF4 rating was assigned to the damage of three well-built brick structures. One of the brick structures 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 from being assigned an IF5 rating. Another structure that was completely destroyed was still under construction. Debris from the houses were carried over the following field along considerable distances."[28] In Lužice, multiple homes and apartment buildings were damaged or destroyed in the town, and metal-framed industrial buildings and factories were destroyed. In Hodonín, the tornado impacted a densely populated area in the northern part of town. Numerous buildings sustained major structural damage or were destroyed. In all, a total of 1,200 buildings were damaged or destroyed by the F4/IF4 tornado, which had an estimated peak windspeed of 380 km/h (236.1 mph) and 14 different locations sustained IF4 level damage.[29] [30] <-- -->[31]
United StatesArkansas, Missouri, TennesseeMonette, Leachville (Arkansas), Braggadocio (Missouri), Tiptonville, Samburg (Tennessee)8 (14 injuries)NWS
2021 Tri-State tornado — A long-tracked wedge and the fifth tornado spawned by the Quad-State supercell damaged or destroyed numerous structures. Multiple structures were swept from their foundation, with only the concrete slab remaining. Low-end EF4 damage occurred in Braggadocio, Missouri, where two homes were destroyed and swept away, and near Tiptonville, Tennessee, where a bait and tackle shop was swept away and reduced to a bare slab. Metal high-tension power poles were bent to the ground as well. The tornado had a path 81.17miles long. EF4 damage occurred in Missouri and Tennessee; the maximum damage in Arkansas was rated EF3.[32] [33]
United StatesTennessee, KentuckyWoodland Mills (Tennessee), Cayce, Mayfield, Benton, Cambridge Shores, Princeton, Dawson Springs, Bremen (Kentucky)57 (515 injuries)NWS
2021 Western Kentucky tornado — A long-tracked wedge and the ninth spawned by the Quad-State supercell, this tornado damaged, destroyed, or obliterated numerous structures along a path of 165.6miles. Eight of the tornado warnings issued during the event by the NWS offices in Memphis, Tennessee, and Paducah, Kentucky were tornado emergency declarations, the most issued during the month of December. EF4 damage occurred in or near the communities of Cayce, Mayfield, Cambridge Shores, Princeton, Dawson Springs, and Bremen. Dual polarization radar imagery showed that the tornado lofted debris up to 30000feet into the air as it impacted Mayfield. The tornado caused extreme ground scouring in Hickman County with grass and several inches of topsoil removed in multiple locations. In Bremen, a row of four homes was obliterated, with debris scattered and wind-rowed long distances through fields across the street. Concrete floor slabs were torn from the foundation of one home and shattered, while the paved driveway of another residence was cracked and scoured. Peak damage along the path was rated high-end EF4 with winds of 190mph based on the damage in Bremen. In 2022, meteorologist and structural and forensic engineer Timothy Marshall noted that "the tornado damage rating might have been higher had more wind resistant structures been encountered" and "the damage likely would have been more severe if the tornado were slower."[34] EF4 damage occurred in Kentucky; the maximum damage in Tennessee was rated EF0.[35] [36] [37] [38]
United StatesIowaMacksburg, Winterset, Norwalk, Pleasant Hill, Newton6 (5 injuries)NWS
2022 Winterset tornado — A multiple-vortex wedge tornado produced major damage along its path of 70.92miles. Southwest of Winterset, several homes were severely damaged or destroyed, a few of which were leveled or swept away. Cars were flipped and thrown, outbuildings were obliterated, debris was strewn long distances, and many large trees were snapped and debarked in this area as well. Winds from the tornado in this area were estimated at 170mph, which officially classifies the tornado as a low-end EF4.[39]
United StatesGeorgiaPembroke, Black Creek1 (12+ injuries)NWS
2022 Pembroke–Black Creek tornado — A NaNmiles wide wedge tornado caused damaged or destroyed numerous structures. Four well-built homes anchor-bolted to their foundations were leveled in Black Creek, including two that were completely swept away with only their bare concrete slab foundations remaining and one with anchor bolts that were bent, indicating EF4 intensity with winds estimated at 185mph. A person was killed in a mobile home that was destroyed to the east of Black Creek.[40] [41]
United StatesTexas, OklahomaBrookston, Caviness, Midcity, Powderly, Arthur City (Texas), Sawyer (Oklahoma)0 (1 injury)NWS
2022 Caviness–Sawyer tornado — A large, nearly mile-wide wedge tornado produced significant damage along a path of 44.69miles. Southwest of Powderly, a well-constructed, anchor-bolted home was swept away, indicating low-end EF4 intensity with winds estimated at 170mph. Two nearby homes were also swept away, but they were poorly-anchored and received a high-end EF3 rating instead. EF4 damage occurred in Texas; the maximum damage in Oklahoma was rated low-end EF2.
United StatesTexas, OklahomaClarksville (Texas), Idabel, Broken Bow, Eagletown (Oklahoma)0 (13 injuries)NWS
2022 Clarksville–Idabel tornado — A large, violent wedge tornado touched down southwest of Clarksville, severely damaging numerous homes and producing intense tree damage. North of Clarksville, a well-constructed residence was completely swept away with only a bare concrete slab remaining. The home's walls had large heavy-duty nails attaching them to the frame of the house which was removed from the foundation along with some of the nails. Debris from the home was broken into small pieces and strewn northeast into a field 50–200 yards away. Winds here were estimated to be 170mph. Ten people living in the residence sheltered in an in-ground oil pit inside a small outbuilding, which was also swept away, but all escaped uninjured. The tornado later caused severe damage on the southeast side of Idabel as well. EF4 damage occurred in Texas; the maximum damage in Oklahoma was rated EF3.
United StatesMississippiRolling Fork, Midnight, Silver City17 (165 injuries)NWS, NSSL, CIWRO, NIST, Haag Engineering
2023 Rolling Fork–Silver City tornado — A long-tracked, violent tornado directly impacted Rolling Fork and Silver City, as well as many surrounding areas, including Midnight, resulting in catastrophic damage. The tornado was at its peak intensity of high-end EF4 in Rolling Fork, destroying many homes, mobile homes, businesses, and other structures, shredding many trees and power lines, and scouring the ground northeast of town. A floral shop was leveled and partially swept away, which received the highest EF4 rating, with winds estimated at 195mph. The survey team noted that the tornado may have peaked at EF5 intensity at this location, but they were not confident enough to make the upgrade. EF4 damage occurred southwest of and northeast of Rolling Fork, and low-end EF4 tree damage and ground scouring also occurred east of Anguilla as well.[42]
United StatesIowaKeota, Wellman0 (3 injuries)NWS
2023 Keota–Wellman tornado — One house was completely swept off its foundation at low-end EF4 intensity near Keota. A car at a different destroyed house was tossed about 1000feet into a field and trees were completely debarked with only stubs remaining. The tornado also caused damage near Wellman.[43]
July 12023CanadaAlbertaDidsbury0 (1 injury)ECCC, PASPC, NTP
2023 Didsbury tornado – Twelve houses were damaged or destroyed, including one well-built house that was collapsed at low-end EF4 intensity, with debris scattered downwind. Trees were debarked, the ground was scoured, and a combine weighing nearly 10000abbr=onNaNabbr=on was thrown and rolled.[44]
April 262024United StatesNebraska, IowaElkhorn, Bennington, Blair (Nebraska), Modale (Iowa)0 (4 injuries)NWS
2024 Elkhorn–Blair tornado — This tornado caused widespread damage on the northwestern part of the Omaha metropolitan area. Multiple homes on the west side of Elkhorn and south of Blair were destroyed at low-end EF4 intensity. EF4 damage occurred in Nebraska; the maximum damage in Iowa was EF1.
April 272024United StatesOklahomaMarietta, Lake Murray, Dickson, Baum1NWS
2024 Marietta–Dickson–Baum tornado — This tornado caused significant damage along its path, especially at the beginning of its path in Love County in and near Marietta. Low-end EF4 damage occurred on the west side Marietta, where a Dollar General warehouse and a Homeland grocery store were partially destroyed. The tornado killed a person on I-35 just prior to reaching its peak intensity.[45]
May 62024United StatesOklahomaBarnsdall, Bartlesville2 (33 injuries)NWS
2024 Barnsdall–Bartlesville tornado — A large, nearly mile-wide wedge tornado produced major damage along a path of 40.8miles. The tornado reached peak intensity with winds estimated up to 180mph just to the southwest of Barnsdall, where a well-built home was completely destroyed. A two-story home on the east side of Barnsdall was also leveled at low-end EF4 intensity. Multiple vehicles were thrown and rolled, and trees were stubbed and debarked in this area.[46]
May 212024United StatesIowaGreenfield5 (35 injuries)NWS
2024 Greenfield tornado — This long-tracked tornado caused considerable damage in three other counties, before destroying several homes at low-end EF4 intensity in rural Adair County. The most severe damage occurred in Greenfield in the central part of the county, where the tornado peaked at mid-range EF4 intensity. Numerous homes were leveled, including some that were swept away, and mobile homes and outbuildings were obliterated.[47]

See also

Notes and References

  1. Web site: National Climatic Data Center. National Oceanic and Atmospheric Administration. May 20, 2013. June 24, 2013. U.S. Tornado Climatology.
  2. News: Paul Rincon . British Broadcasting Company. July 11, 2003. June 25, 2013. UK, Holland top twister league. Paul Rincon.
  3. Web site: Storm Prediction Center. National Oceanic and Atmospheric Administration. 2006. June 25, 2013. Fujita Tornado Damage Scale.
  4. Web site: Storm Prediction Center. National Oceanic and Atmospheric Administration. August 4, 2011. June 25, 2013. The Enhanced Fujita Scale (EF Scale) .
  5. Web site: Storm Prediction Center. National Oceanic and Atmospheric Administration. 2013. June 25, 2013. Enhanced F Scale for Tornado Damage.
  6. Web site: Violent Tornadoes . National Weather Service . September 7, 2022.
  7. National Weather Service Weather Forecast Office in Nashville, Tennessee. March 2–3, 2020 Tornadoes and Severe Weather. National Oceanic and Atmospheric Administration. March 5, 2020.
  8. Book: Grazulis . Thomas P. . Thomas P. Grazulis . Significant Tornadoes 1974–2022 . 2023 . The Tornado Project . . 978-1-879362-01-7 . 589–633.
  9. https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=887908 Storm Events Database
  10. Web site: National Oceanic and Atmospheric Administration. 2020. April 25, 2020. NWS Damage Assessment Toolkit.
  11. Web site: More Than Two-Mile-Wide Mississippi Easter Tornado, One of Largest Ever Documented in U.S., Was State's Widest on Record. The Weather Channel. en-US. April 17, 2020.
  12. Web site: Mississippi tornado becomes third-widest on record, according to the National Weather Service. Michaels. Chris. April 17, 2020. WSLS. en. April 17, 2020.
  13. South Carolina Event Report: EF4 Tornado . National Weather Service . National Centers for Environmental Information . July 17, 2020.
  14. Web site: NWS Damage Assessment Toolkit . apps.dat.noaa.gov . July 15, 2020.
  15. https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=899721 Storm Events Database
  16. https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=899722 Storm Events Database
  17. https://www.ncdc.noaa.gov/stormevents/eventdetails.jsp?id=899723 Storm Events Database
  18. National Weather Service Weather Forecast Office in New Orleans. NWS New Orleans Tornado Report. Iowa Environmental Mesonet. April 20, 2020. April 20, 2020.
  19. Web site: The Hurricane Creek/Pine Burr/Purvis/Camp Shelby tornado has been rated an EF-4 with estimated maximum wind of 170 MPH, path length of 54.2 miles, and maximum path width of 1.25 miles. Additional details will follow later this evening.. Jackson MS. NWS. April 20, 2020. @NWSJacksonMS. 2020-04-20.
  20. News: Cappucci . Matthew . Destructive 'drill bit' tornado carves deadly path in Minnesota . September 24, 2020 . Washington Post.
  21. Web site: Deadly Minnesota tornado featured on cover of upcoming movie '13 Minutes' . 4 October 2021 . Bring Me The News . 7 September 2023.
  22. News: Twister's path: Oklahoma-made tornado movie '13 Minutes' stars Anne Heche, Amy Smart and more . Brandy . McDonnell . . October 29, 2021 . October 10, 2022.
  23. National Weather Service Weather Forecast Office in Peachtree City, Georgia. NWS Damage Survey for March 25–26, 2021 Tornado and Severe Weather Event Update #5. Iowa Environmental Mesonet. March 31, 2021. March 31, 2021.
  24. Web site: Daryl . Herzmann . IEM :: Valid Time Event Code (VTEC) App . mesonet.agron.iastate.edu . March 28, 2021 . en.
  25. Web site: Daryl . Herzmann . IEM :: Valid Time Event Code (VTEC) App . mesonet.agron.iastate.edu . March 28, 2021 . en.
  26. Web site: Daryl . Herzmann . IEM :: Valid Time Event Code (VTEC) App . mesonet.agron.iastate.edu . March 28, 2021 . en.
  27. National Centers for Environmental Information. Storm Events Database March 24, 2021. National Centers for Environmental Information. June 23, 2021.
  28. Web site: https://www.essl.org/cms/wp-content/uploads/24-June-2021-violent-tornado-damage-assessment-.pdf . ESSL . October 4, 2022.
  29. News: Czech Republic: Deadly tornado sweeps through villages . BBC News . June 24, 2021 . June 25, 2021.
  30. Web site: Tornádo zpustošilo jih Moravy, zanechalo za sebou oběti a mnoho zraněných . CT . June 25, 2021.
  31. Web site: SOUHRNNÁ ZPRÁVA k vyhodnocení tornáda na jihu Moravy 24. 6. 2021 . chmi.cz . CHMI . October 26, 2021.
  32. Web site: ArcGIS Web Application . apps.dat.noaa.gov . December 13, 2021 . April 23, 2020 . https://web.archive.org/web/20200423095631/https://apps.dat.noaa.gov/stormdamage/damageviewer/ . live .
  33. News: Recovering Together . Olivo . Antonio . December 17, 2020 . Washington Post . December 29, 2021 . December 18, 2021 . https://web.archive.org/web/20211218125312/https://www.washingtonpost.com/nation/interactive/2021/midwest-tornado-path/ . live .
  34. Marshall . Timothy . Damage Survey of the Mayfield, KY Tornado: 10 December 2021 . 30th Conference of Severe Local Storms . January 2022 . November 17, 2022.
  35. Web site: Some ground scouring along Hwy 51 between Clinton and Fulton, KY . Emfinger . Brian . December 20, 2021 . twitter.com . Twitter . January 4, 2022 . "Some ground scouring along Hwy 51 between Clinton and Fulton, KY" . January 4, 2022 . https://web.archive.org/web/20220104051842/https://twitter.com/brianemfinger/status/1473055357559791627 . live .
  36. Web site: Nathan Santo Domingo. Usually, we can call these "hail spikes." It's a radar artifact that is usually caused by very large hail. In this instance, however, this is a "debris spike" due to a massive tornado lofting large objects high into the air. Unreal... #kywx. Twitter. December 12, 2021. December 11, 2021. https://web.archive.org/web/20211211034535/https://twitter.com/NSDwx/status/1469512020424896520. live.
  37. Web site: December 11, 2021. Many trapped, two dead as tornado hits nursing home in Arkansas -media. December 11, 2021. reuters.com. en. December 11, 2021. https://web.archive.org/web/20211211042134/https://www.reuters.com/markets/commodities/many-trapped-two-dead-tornado-hits-nursing-home-arkansas-media-2021-12-11/. live.
  38. News: 'Quad-State Tornado' crossed four states in four hours, a rare December tornado. Kathryn Prociv. Nicole Acevedo. NBC News. December 11, 2021. December 12, 2021. December 12, 2021. https://web.archive.org/web/20211212005805/https://www.nbcnews.com/news/weather/quad-state-tornado-crossed-four-states-four-hours-leaving-trail-death-rcna8465. live.
  39. Web site: March 7, 2022 . Winterset tornado upgraded to EF-4 with 170 mph winds . 2022-04-11 . who13.com . en-US.
  40. Web site: 2 dead as tornadoes touch down in South . 2022-04-06 . ABC News . en.
  41. National Weather Service in Charleston, South Carolina. NWS Damage Survey for the April 5, 2022 Tornado Event in Bryan County GA – Update #2. Iowa Environmental Mesonet. April 28, 2022. April 29, 2022.
  42. Web site: National Weather Service in Jackson, Mississippi . Rolling Fork-Silver City Tornado . Iowa Environmental Mesonet . National Oceanic and Atmospheric Administration . 10 September 2023 . https://web.archive.org/web/20230910230843/http://mesonet.agron.iastate.edu/wx/afos/p.php?pil=PNSJAN&e=202306062206 . 10 September 2023 . English . 6 June 2023 . live.
  43. Web site: National Centers for Environmental Information . Iowa Event Report: EF4 Tornado . Storm Event Database . National Oceanic and Atmospheric Administration . 24 June 2023.
  44. Web site: July 4, 2023 . Didsbury AB Tornado an EF4 . live . https://web.archive.org/web/20230704183833/https://www.uwo.ca/ntp/blog/2023/didsbury_ab_tornado_an_ef4.html . July 4, 2023 . July 4, 2023 . Northern Tornadoes Project . Western University . en.
  45. Web site: NWS Damage Survey for 4/27/24 and 4/28/24 Tornado Event Update #1. Iowa Environmental Mesonet. National Weather Service Norman OK. April 29, 2024. Norman, Oklahoma. April 29, 2024. Public Information Statement. Web site: The April 27-28, 2024 Tornado and Flash Flooding Event . www.weather.gov . National Weather Service Norman OK . 28 April 2024 . EN-US.
  46. Web site: . [4:12 pm - 5/7/24] Our survey team looking at the damage from last night's Barnsdall tornado have found low end EF4 damage. They continue to survey damage along the track so this rating remains preliminary. #okwx ]. (Formerly Twitter) . . 7 May 2024 . . . 7 May 2024.
  47. National Weather Service in Des Moines, Iowa. NWS Damage Survey for 05/21/2024 Tornado Event Update #2 . Iowa Environmental Mesonet . May 23, 2024 . May 23, 2024.