Aqua image of TD8 (IMAGE)
Caption
On July 23 at 4:05 a.m. EDT (0805 UTC), the MODIS instrument aboard NASA's Aqua satellite gathered temperature information about Tropical Depression 8's cloud tops. MODIS found several areas of powerful thunderstorms (red) where temperatures were as cold as or colder than minus 70 degrees Fahrenheit (minus 56.6 Celsius).
Credit
NASA/NRL
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