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 MSG SNPP SEVIRI Africa Europe Asia VIIRS Date 2016 SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 12 April 2016 00:00 UTC–18 April 13:30 UTC Tropical Cyclone Fantala Tropical Cyclone Fantala showed a very clearly defined eye as the storm reached Category 5 level in mid-April. Case study 1 and 2 April 2016 12:00 UTC and 01:50 UTC Saharan dust causes temperature drop Some areas of Europe saw a significant drop in temperatures on 1 April 2016 due to a large cloud of Saharan dust.