NASA Infrared Image of Tropical Cyclone Evan (IMAGE)

NASA/Goddard Space Flight Center

NASA Infrared Image of Tropical Cyclone Evan

Caption

The AIRS instrument aboard NASA's Aqua satellite captured this infrared image of Tropical Cyclone Evan over the Samoa Islands on Dec. 13 at 0059 UTC. Evan's maximum sustained winds had increased to 90 knots (103 mph/166.7 kph) at the time of this image. The purple rounded area is Evan's center of circulation and is populated by strong thunderstorms that reach high into the troposphere where temperatures are as cold as -63 Fahrenheit (-52 Celsius). Those areas shaded in purple also indicate heavy rainfall.

Credit

NASA/JPL, Ed Olsen

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