NASA's AIRS Instrument Sees Ana's Cold Clouds (IMAGE)

NASA/Goddard Space Flight Center

NASA's AIRS Instrument Sees Ana's Cold Clouds

Caption

This AIRS infrared satellite image shows Ana's clouds (depicted in blue) when she was a tropical storm on Aug. 15. By mid-day on Aug. 16, she weakened to a tropical depression. In infrared imagery, NASA's false-colored purple clouds are as cold as or colder than 220 Kelvin or minus 63 degrees Fahrenheit. The blue colored clouds are about 240 Kelvin, or minus 27F. The colder the clouds are, the higher they are, and the more powerful the thunderstorms are that make up the cyclone.

Credit

NASA/JPL, Ed Olsen

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