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South Atlantic Tropical Cyclone
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South Atlantic Tropical Cyclone

March 27, 2004
During its daytime overpass of the southeast coast of Brazil on March 26, 2004, the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite captured this surprising sight: a tropical cyclone. The South Atlantic is generally not thought of by meteorologists as a place where tropical cyclones can form. The water temperatures are generally too cool and the vertical wind shear too strong. The area is so devoid of tropical storm activity that no government agency has an official warning system for storms there, which is why this storm is unnamed. In this image, the storm is at roughly 28 degrees south latitude, southeast of the city of Curitaba, which makes a tan splotch against the green vegetation at the top of the image, left of center.


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