Satellite images and wind measurements from the Quikscat satellite show that a rare tropical depression in the South Atlantic probably formed for a few hours today, but the storm has since been sheared apart by strong upper-level winds, and is not a threat to re-develop. Although the storm was tropical, had a closed circulation, and winds of up to 35 mph (according to the Quikscat satellite), it only had those characteristics for about three hours today. The National Hurricane Center usually does not designate a system as a tropical depression unless it can hold together for at least six hours. The system formed near 29S 36W, about 600 miles southeast of Rio de Janeiro, Brazil, over waters of about 27 degrees C--well above the 26 C threshold needed for tropical storm formation.
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