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 Metop Weather Data Tags MSG Metop-B AVHRR SEVIRI Metop-A Europe SNPP VIIRS Date 2013 SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 6 November 2013 10:30–14:30 UTC Distrails over Central Europe A distrail, short for dissipation trail, forms when an aircraft flies through a supercooled cloud.