Contact: Rob Gutro
NASA/Goddard Space Flight Center
Caption: NASA's Aqua satellite captured an infrared image of Tropical Depression 12 early on Sept. 12 when it was just east-southeast of the Cape Verde Islands. At that time it showed strong convection and powerful thunderstorms around its center (purple). By 11 p.m. EDT that day it became Tropical Storm Julia. Warm sea surface temperatures of 80F or higher (orange) surround Julia.
Credit: NASA/JPL, Ed Olsen
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Related news release: NASA sees Tropical Storm Julia born with strong thunderstorms and heavy rainfall