June 27 2007 - Saharan Dust Approaching South America
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June 27, 2007 - Saharan Dust Approaching South America

February 18, 2008
Saharan dust that blew off the west coast of Africa on June 22, 2007 has journeyed westward across the Atlantic Ocean towards South America. The MODIS instruments on the Terra and Aqua satellites have tracked the dust plume's progress.

This image was captured by the MODIS on the Terra satellite, and shows the dust on June 24, 2007, at 13:45 UTC. South America is visible in the lower left corner of the image.

How does dust cross the Atlantic like this? The dust actually enters trade winds bound for Central and North America and the Caribbean, and can cross the ocean in a matter of days!

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