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 Metop Tags MSG SEVIRI Africa AVHRR Metop-A Terra/Aqua MODIS Date 2010 Date January March June July SHOW ALL Sort by Start Date Order Ascending Descending 4 results Case study 5 July 2010 00:00 UTC Dust squalls over central Sahel Meteosat-9 observed a well-organised mesoscale convective system over the central Sahel. Case study 9 June 00:00–10 June 10:00 UTC Large dust squall over Niger, Mali & Algeria On 9 June, convection lifts part of the low-lying dust higher up. Case study 18 March 2010 00:00 UTC Continental-scale dust outbreak over Africa According to NASA Earth Observatory March 2010 was a spectacular month for dust outbreaks. Case study 24 January 2010 00:00 UTC Tropical low over Namibia-Botswana border area Tropical low over the Namibia-Botswana border area January 2010.