Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Weather Atmospheric composition Data Meteosat Tags SEVIRI Europe MSG SNPP VIIRS Date 2016 Date March SHOW ALL Sort by Start Date Order Ascending Descending 2 results Case study 22 March 2016 00:00 UTC–24 March 06:00 UTC Cyclone Ivan brings massive dust storm Cyclone Ivan brought an impressive low carrying huge amounts of dust to parts of Europe. Case study 15 March 2016 12:00 UTC–16 March 12:00 UTC Upper-Level Low (ULL) over northern Europe Westward travelling ULL induced rapid reversal of a pressure gradient across the Alps.