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 Data Metop Tags Metop SW Pacific AVHRR Asia Date 2013 Date September SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 20 September 2013 01:42 UTC Super Typhoon Usagi seen by Metop Super Typhoon Usagi, the strongest storm of 2013, so far, is seen by Metop-B as it moves towards China, Vietnam and Hong Kong.