NASA Infrared Image of Tropical Storm Colin's Thunderstorm Cloud Tops (IMAGE)
Caption
This infrared image from NASA's AIRS instrument shows some strong convection and high, cold cloud tops (purple) around Tropical Depression 4's (TD4) center on August 2 at 11:59 a.m. EDT. 17 hours later TD4 strengthened into Tropical Storm Colin.
Credit
NASA JPL, Ed Olsen
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