This is a compilation of different dust events.
4-7 April 2011. A cloud of dust (pink) is lifted over the Algerian Sahara under the cloud deck of a low-pressure system centred over Morocco. The dust drifts across the Atlas ranges and the south-western corner of the Iberian peninsula, toward the Eastern Atlantic. From there, the dust is collected by anticyclonic winds, stretching it into an elongated band near the south-west coast of Ireland. Meteosat-9 Dust RGB 04/04/11 06:00 - 07/04/11 06:00 UTC. Courtesy of EUMETSAT
25-27 March 2011. Meteosat-9 observes a large dust storm racing southwards over the Arabian Peninsula. Note the persistent dark magenta hue of the leading dust front, indicating exceptional dust density. Further, note how the dust cloud travels significantly faster during the night as it encounters a strong temperature inversion near the ground. When the dust cloud finally approaches the Red and Arabian Sea coastlines it quickly disperses, gaining a typically lighter hue. Meteosat-9 Dust RGB 25/03/11 00:00 - 27/03/11 12:00 UTC. Courtesy of EUMETSAT