Planetary News: Earth (2007)
Earth from Space: Typhoon Usagi Approaches Japan
August 7, 2007
Typhoon Usagi
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra
satellite captured this image of a category 4 typhoon approaching
Japan on August 1, 2007. The image has a spatial resolution of 500 meters
per pixel. Credit: NASA image by Jeff Schmaltz, MODIS Rapid Response Team,
Goddard Space Flight Center.
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Category 4 Typhoon Usagi was stretched across the Pacific
Ocean southeast of Japan in a long oval shape when the Moderate Resolution
Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured
this image on August 1, 2007. The spiraling bands of rain clouds in the
northwest quadrant of the storm appear to be reaching out for the islands
of Shikoku and Honshu. Several large cities -- and millions of residents
-- occupy these southern islands.
When Terra MODIS captured this image, Typhoon Usagi was at its maximum intensity.
With its tightly wound bands of clouds, nearly symmetrical shape, and well-defined
eye, Usagi bore the hallmarks of an extremely powerful tropical cyclone.
At the time, the storm packed sustained winds of 222 kilometers per hour
(138 miles per hour) with gusts to 269 kilometers per hour (167 miles per
hour). Usagi weakened slightly in the hours that followed, and finally
struck Japan late on August 2, bringing winds of up to 180 kilometers per
hour (110 miles per hour).
Usagi is the fifth named storm in the western Pacific in 2007, and it is
the second Category 4 storm to form in July. Its predecessor, Man-Yi, also
troubled Japan. It pounded Okinawa and then veered northeastward, raking the
east coast of the southern islands. According to the Japan Meteorological
Agency, August and September are the most active months for tropical cyclones
in this part of the Pacific, with an average of 5.5 and 5.1 storms, respectively.
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