Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Weather Meteosat Atmospheric Composition Data Tags Africa Terra/Aqua Meteosat Second Generation (MSG) SEVIRI MODIS Date 2007 Date April SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 5 April 2007 00:00 UTC EUMETSAT Science Blog Severe thunderstorm in polluted air over Burkina Faso On 5 April an isolated thunderstorm developed rapidly southwest of Ouagadougou, the capital of Burkina Faso.