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 Meteosat Atmospheric composition Data Tags MTG Asia Himawari AHI MSG SEVIRI SNPP VIIRS Date 2016 Date February December SHOW ALL Sort by Start Date Order Ascending Descending 3 results Case study 28 December 2016 01:00–06:00 UTC Holepunch clouds over eastern China On 28 December 2016 holepunch clouds or fallstreak holes developed over eastern China. Case study 6 December 2016 00:00 UTC–9 December 23:45 UTC Night-time fog over India Meteosat-8 and Himawari-8 observe night-time fog formation in northern India in December. Case study 18 February 2016 00:00 UTC–19 February 23:30 UTC Dust outbreaks sweep through China During 18-19 February 2016 several dust outbreaks occurred over China.