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 Land Weather Data Science Meteosat Metop Sentinel Tags VIIRS ASCAT Meteosat Second Generation (MSG) OLCI SEVIRI Third Party Sentinel-3 Africa NOAA Metop-A Metop-B Europe Asia North America, Central America & Caribbean Himawari GOES Terra/Aqua SNPP MODIS ABI AHI Indian Ocean Date 2021 Date January February March April May June October November SHOW ALL Sort by Start Date Order Ascending Descending 10 results Case study 16 November 2021, 00:00 UTC-17 November Haze over India Layer of haze covering the sky over India in November 2021 Case study 23 October-2 November 2021 Multiple severe rain events in western Med & N Africa Between 23 Oct and 2 Nov 2021, a series of upper-level lows caused disturbances in the Mediterranean/northern Africa area. Case study 11 October 2021 15:00 UTC-12 October 04:50 UTC Dust outbreak in California's Central Valley A deep upper-level trough caused a dust outbreak in California's Central Valley on 11 Oct 2021. Case study 1 October 2021, 07:00-19:00 UTC Gravity waves over Cumbre Vieja volcano Eruptions from the Cumbre Vieja volcano caused unique gravity wave oscillations though clouds, October 2021. Case study 21 June 2021, 00:00-23:45 UTC Storm Ahti causes damage in northern Finland On 21 June 2021 Storm Ahti caused widespread damage and flooding in northern Finland. Case study 22 May 2021, 18:00 UTC to 23 May, 17:15 UTC Destructive eruption of volcano Nyiragongo In the evening of 22 May 2021 volcano Nyiragongo started to erupt, threatening life and property. Case study 14 April 00:00-07:00 UTC Geldingadalir eruptions affect cloud microphysics Altered cloud microphysical structure above Geldingadalir eruptions, April 2021. Case study 11 March 2021 16:30 UTC-15 March 23:00 UTC Major dust outbreaks - Africa, Middle East & China Meteosat-8 spots series of dust outbreaks in March 2021. Case study 23 February 2021 14:00 UTC-24 February 00:00 UTC Spotting Etesian winds in solar imagery using moonglint Etesian winds spotted in the solar spectrum in Feb 2021. Case study 8 January 2021 09:00 UTC-11 January 13:00 UTC Heavy snow in parts of Spain Parts of central Spain saw their heaviest snowfalls in decades in January 2021.