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 Atmospheric Composition Meteosat Land Ocean Weather Metop Tags Europe Asia AVHRR Meteosat Second Generation (MSG) SEVIRI Meteosat Third Generation (MTG) Africa EPS Himawari SNPP VIIRS AHI Date 2020 2019 2017 2016 2015 2014 SHOW ALL Sort by Start Date Order Ascending Descending 8 results Case study 23 March 2020 04:00 UTC–27 March 18:00 UTC Aralkum Desert dust pollutes air in south-east Europe High values of particulate matter (PM10) were recorded in the air in many places across South-East Europe on 27 March 2020. Case study 1 June 2019 02:00–5 June 12:00 UTC Extensive smoke from Canadian wildfires Smoke from widespread wildfires in Alberta, Canada travelled as far as parts of Europe and Russia in May and June 2019. Case study 01 February 2017 00:00 UTC–02 February 12:00 UTC Colour-changing dust cloud vortex Dust in northern Iraq shows different colours before and after circulation. Case study 18–31 July 2016 04:00 UTC Smoke over Russia Widespread smoke over Russia clearly seen on Meteosat Natural Colour RGB imagery on the morning of 25 July 2016. Case study 13 June 2015 21:00 UTC Smoke from Canadian fires seen over Europe On 13 June smoke from wildfires in Canada travelled over parts of Northern Europe. Case study 10 February 2015 06:00 UTC–13 February 12:00 UTC Large sandstorm covers swathes of the Middle East A sandstorm, with winds reaching 100 km/h, caused widespread disruption across the Middle East in early February. Case study 07 January 2015 09:30 UTC Snow from trough over eastern Mediterranean Sea The Airmass RGB shows the deep upper level trough over the eastern Mediterranean Sea. Case study January–December 2015 Image Library top ten for 2015 A look at our most popular case studies from 2015.