Uploaded July 2024 | Updated September 2026, 1 hour ago
On May 21st 2024, my chase partner Chris and I were chasing a tornado outbreak in southeast Iowa when two violent tornadoes touched down. One of these tornadoes would nearly hit me and devastate the town of Greenfield, Iowa, earning a high end EF4 rating. A mobile doppler radar team recorded winds as high as 309-318mph inside this tornado, making the Greenfield, Iowa tornado a contender for the strongest tornado ever recorded and likely the first tornado I've seen capable of doing EF5 damage. This video tells my story of chasing this historic storm and how it nearly cost me my life.
Greenfield, Iowa is still recovering from this devastating tornado, if you would like to donate to help them in this process, you can visit their website here: greenfieldiafoundation.org/donate
EF Scale explanation:
EF0 Light Damage (65-85mph)
EF1 Moderate Damage (86-110mph)
EF2 Considerable Damage (111-135mph)
EF3 Severe Damage (136-165mph)
EF4 Devastating Damage (166-200mph)
EF5 Incredible Damage (201mph+)
DOW6 Data: Flexible Array of Radars and Mesonets (FARM) - Josh Wurman/Karen Kosiba
Additional damage videos were provided by my good friends @JesseGillett and @highriskchris go check out their channels!
Twitter: twitter.com/CeltonHenderson
Want to support what I do? This is the best place to do so:
patreon.com/celtonhenderson
NOT FOR BROADCAST
Contact Celton Henderson at overflowingcrucible@gmail.com for licensing inquiries.
If you are looking to use parts of this video for educational purposes regarding chaser safety or scientific research please shoot me an email and I'll be as accommodating as I can with all the information/ footage I have from this day.
On May 21st 2024, my chase partner Chris and I were chasing a tornado outbreak in southeast Iowa when two violent tornadoes touched down. One of these tornadoes would nearly hit me and devastate the town of Greenfield, Iowa, earning a high end EF4 rating. A mobile doppler radar team recorded winds as high as 309-318mph inside this tornado, making the Greenfield, Iowa tornado a contender for the strongest tornado ever recorded and likely the first tornado I've seen capable of doing EF5 damage. This video tells my story of chasing this historic storm and how it nearly cost me my life.
Greenfield, Iowa is still recovering from this devastating tornado, if you would like to donate to help them in this process, you can visit their website here: greenfieldiafoundation.org/donate
EF Scale explanation:
EF0 Light Damage (65-85mph)
EF1 Moderate Damage (86-110mph)
EF2 Considerable Damage (111-135mph)
EF3 Severe Damage (136-165mph)
EF4 Devastating Damage (166-200mph)
EF5 Incredible Damage (201mph+)
DOW6 Data: Flexible Array of Radars and Mesonets (FARM) - Josh Wurman/Karen Kosiba
Additional damage videos were provided by my good friends @JesseGillett and @highriskchris go check out their channels!
Twitter: twitter.com/CeltonHenderson
Want to support what I do? This is the best place to do so:
patreon.com/celtonhenderson
NOT FOR BROADCAST
Contact Celton Henderson at overflowingcrucible@gmail.com for licensing inquiries.
If you are looking to use parts of this video for educational purposes regarding chaser safety or scientific research please shoot me an email and I'll be as accommodating as I can with all the information/ footage I have from this day.
