Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Satellites Land Ocean Weather Meteosat Tags SEVIRI Meteosat Second Generation (MSG) Africa Europe Asia Terra/Aqua SNPP MODIS VIIRS Date 2016 SHOW ALL Sort by Start Date Order Ascending Descending 4 results Case study 21 April 2016 09:00–13:45 UTC Supercell thunderstorm over South Africa In April 2016 a supercell thunderstorm occurred over the Free State with a short-lived tornado. Case study 20 April 2016 05:00–17:00 UTC Tracing cold air channelling Cold air that moved north of the synoptic ridge was channelling between the Alps and the Western Carpathians, swirling behind the mountains in the lower levels. 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 4 April 2016 08:40 UTC, 08:45 UTC and 09:12 UTC Observing river deltas Observation of the deltas of the Danube and Nile rivers in April 2016.