A dust storm crossed the border between Algeria and Mali on July 14, 2007. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying on NASA’s Aqua satellite took this picture the same day. In this image, the dust appears as a buff-colored blur. Because the dust plume is diffuse, its origins are not easily discerned in this image. In the south, the dust mingles with clouds, and the clouds could be associated with the same weather system that disturbed the desert dust.
Acquired April 22, 2010, this natural-color image shows a dust plume spanning hundreds of kilometers in western Africa. A wall of dust appears to advance toward the southeast in Burkina Faso and Niger.