Geoscientists in Australia have recently uncovered evidence of a powerful, undetected tornado that swept across the Nullarbor Plain in November 2022, leaving behind a 6.8-mile-long scar in the landscape. This discovery, made possible through satellite imagery, highlights how even the most powerful storms can go unnoticed in remote, uninhabited areas.
Tornadoes are notorious for their destructive power. When they strike populated areas, they leave behind a clear trail of damage—broken homes, uprooted trees, and debris scattered across wide areas. Their presence is unmistakable, with howling winds and violent destruction making them difficult to ignore. However, when tornadoes strike barren, rural regions where human activity is minimal, their mark can often go unnoticed. That was the case with the Nullarbor Plain tornado, which remained undetected for almost two years, until a curious man studying Google Earth satellite imagery stumbled upon an unusual shape on the ground.
The man, who was looking for caves in the southern Australian region, noticed what appeared to be a strange, elongated line cutting through the flat, dry, and treeless expanse of the Nullarbor Plain. The mark was far from straight; it sloped and curved, forming a deep V-shaped pattern at one point. According to Peter de Kruijff of the Australian Broadcasting Corporation, the shape resembled a child’s drawing of a seagull.
Intrigued by this discovery, the man shared his findings, which eventually reached researchers at Curtin University in Perth. These scientists turned their attention to the region, conducting a thorough analysis of the satellite imagery, as well as historical weather data. Their investigation revealed that the mysterious mark was, in fact, the signature of a tornado that had gone undetected until now.
Matej Lipar, a geoscientist at Curtin University and the lead author of the study, explained that the tornado occurred sometime between November 16 and 18, 2022. During that period, a low-pressure system combined with a cold front had created severe weather conditions in the area, which likely contributed to the formation of the tornado. In his article for The Conversation, Lipar remarked, “Without the power of technology, this remarkable example of nature’s ferocity would have gone unnoticed.”
The tornado’s path was now clearly visible on the ground, a scar measuring 6.8 miles in length and between 525 and 820 feet wide. Researchers noted that the scar contained “cycloidal marks,” dark loops created by the tornado’s suction vortexes. These distinctive markings are characteristic of tornadoes and serve as a key indication of their presence.
The scientists’ observations led them to estimate that the tornado was of significant strength, likely falling within the F2 or F3 categories on the Fujita Scale—a scale used to measure tornado intensity. These categories are described as “significant” and “severe,” respectively, with wind speeds likely exceeding 124 miles per hour. The team believes the tornado lasted between seven and 13 minutes, spinning clockwise as it tore eastward across the barren terrain.
Despite these findings, some meteorologists remain cautious about drawing firm conclusions solely from the scar. John Allen, a meteorologist at Central Michigan University who was not involved in the research, noted that tornadoes in the F2 and F3 range are relatively rare in Australia and typically occur alongside stronger, more prolonged thunderstorms. While the presence of cycloidal marks strongly suggests a tornado did pass through the region, Allen pointed out that without more direct evidence, such as damage to buildings or eyewitness accounts, it is difficult to confidently estimate the tornado’s intensity.
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Nevertheless, the discovery raises an important point about the role of satellite imagery in weather research. The Nullarbor Plain tornado highlights how satellite technology can be a powerful tool for meteorologists, especially when studying remote and sparsely populated regions. While these areas may lack the infrastructure and human witnesses to report severe weather events, satellite imagery provides a means of detecting and understanding these events after the fact.
The research team suggests that satellite-based analysis could become increasingly valuable in monitoring and predicting severe weather, not just in populated regions but also in rural areas that are more challenging to study through traditional methods. This technology offers an important means of gathering data on extreme weather events that might otherwise go unnoticed, helping scientists and meteorologists better prepare for future storms.
As this discovery demonstrates, even the most remote parts of the world are not immune to the power of nature. By harnessing modern technology, scientists can uncover hidden signs of nature’s fury, providing valuable insights that can improve weather prediction and preparation efforts in the future.
