A photo from open sources
Mid January is marked by a large dust storm that swept countries of southwest Asia, spreading to the Arabian Sea and therefore seen even from space. Strong wind typical of of this time, he lifted into the atmosphere tons of dusty sand suspension, which overshadowed the sky and greatly degraded air quality. 
Photo from open sources Sputnik “Aqua”, 08:45 GMT 13 January 2013 © MODIS | NASA The cause of the dust storm was division of the Asian anticyclone into two cores. Main center stayed over Mongolia, with a slight offset to the southeast, and the second, only slightly less powerful, arose over Iran. Weather map for 06:00 GMT on January 16, 2013 © Gismeteo It was he who created large gradients of atmospheric pressure between the cold continent and the warm waters of the Arabian Sea. Seeking to compensate for this distinction, cold continental air at high speed gushed south, lifting in the deserts of Iran, Afghanistan and Pakistan dust storms.
A photo from open sources Sputnik Terra, 06:30 GMT 12 January 2013 © MODIS | NASA This area is a composite part of the vast subtropical desert, stretching from the Sahara to Mongolia, where up to 70% of all dust storms on the planet are observed. The sand of the former seas and the dried up riverbeds and lakes are fertile soil for their occurrence.
Iran NASA
