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 Weather Data Metop Tags Metop SNPP MODIS ASCAT MSG SEVIRI Asia Terra/Aqua VIIRS Date 2015 SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 28 October 2015 17:24 UTC–3 November 12:00 UTC Tropical Cyclone Chapala Tropical Cyclone Chapala was one of the strongest cyclones to ever hit Yemen.