Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Meteosat Sentinel Atmospheric composition Weather Data Tags OLCI Sentinel-3 MSG SEVIRI SLSTR MTG Asia GOES ABI Date 2019 SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 29 January 2019, 06:00 UTC–31 January 16:00 UTC. US big freeze as seen from space Features of the 'Big Freeze' which affected parts of North America in January 2019. Case study 5 and 6 January 2019 03:00–13:00 UTC Outflow of winter smog over north Indian Ocean On 6 January 2019 Indian winter smog spread over the north Indian Ocean.