Storms within a superstorm.

U.S. National Aeronautics and Space Administration (NASA) satellites tracking Typhoon Ompong (international name Super Typhoon Mangkhut) have found powerful storms surrounding the eye of the tropical cyclone days before its landfall over northern Luzon.

On September 13, the MODIS instrument on the Aqua satellite looked at Ompong in infrared as it was approaching the Philippines, NASA Goddard Space Flight Center’s Rob Gutro said in a blog post.

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