3 Days of NASA Infrared Images Show Heidi Strengthen (IMAGE)

NASA/Goddard Space Flight Center

3 Days of NASA Infrared Images Show Heidi Strengthen

Caption

Over the days of Jan. 10, 11 and 12, 2012, infrared data from the AIRS instrument on NASA's Aqua satellite showed cloud top temperatures growing increasingly colder (purple is the coldest, greater than -63F) as Tropical Storm Heidi strengthened and cloud tops achieved larger heights and became colder.

Credit

Credit: NASA JPL, Ed Olsen

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