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 Data Ocean Weather Meteosat Tags Africa Indian Ocean MSG SEVIRI Asia Atlantic Ocean Date 2020 SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 25 December 2020 00:00 UTC-2 January 2021 09:00 UTC Chalane crosses southern African subcontinent Tropical Storm Chalane landfall in Madagascar and Mozambique, then the entire South African subcontinent. Case study 21 November 2020 12:00 UTC-23 November 12:00 UTC Tropical Cyclone Gati historic landfall in Somalia Tropical Cyclone Gati was the strongest tropical cyclone on record to make landfall in Somalia, in late November 2020.