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A Man Noticed a Strange Shape on the Ground on Google Earth. It Turned Out to Be the Mark of an Undetected TornadoThe scar measured 6.8 miles long and spanned between 525 and 820 feet wide. It had “cycloidal marks,” or a chain of dark loops created by the tornado’s suction vortexes. Based on their ...
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Satellite imagery identifies mysterious marking in the Australian outback — here's what scientists say caused it"Based on the scar's dimensions and the pattern of cycloidal marks, the tornado's strength is estimated to be within the F2 or even F3 category on the Fujita scale, with wind speeds likely ...
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