Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Atmospheric composition Weather Data Meteosat Tags SEVIRI S America MSG Date 2009 Date July SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 21 July 2009 00:00 UTC Zonda wind carries dust across Bolivia & Argentina Example of the viento blanco and viento zonda carrying large amounts of dust across Bolivia and Argentina.