Contact: Rob Gutro
NASA/Goddard Space Flight Center
Caption: NASA's Aqua satellite passed over huge Tropical Storm Muifa on July 29, 2011 at 04:17 UTC (12:17 a.m. EDT. The infrared image revealed a large area of powerful, high thunderstorms with cold cloud tops (purple) east and west of the center where cloud temperatures were colder than -63 Fahrenheit (-52 Celsius). Muifa is about 1000 miles wide.
Credit: NASA JPL, Ed Olsen
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Related news release: Tropical Storm Muifa appears huge on NASA infrared imagery