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 Weather Data Meteosat Tags MSG Africa Europe VIIRS SEVIRI Asia SNPP Date 2015 Date January February SHOW ALL Sort by Start Date Order Ascending Descending 2 results 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 31 January 2015 13:00 UTC–1 February 06:00 UTC Dust travels from Algeria to the Black Sea In late January/early February a large dust plume swept north east from Africa and over the Mediterranean Sea.