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 Land Data Metop Tags Europe AVHRR Meteosat Second Generation (MSG) SEVIRI Africa Metop-A Terra/Aqua MODIS Date 2009 Date January February April May June September December SHOW ALL Sort by Start Date Order Ascending Descending 12 results Case study 22 December 2009 22:00 UTC–23 December 15:00 UTC Strong low level winds in Portugal A rapid cyclogenesis came from the Atlantic and entered Portugal overnight 22-23 December. Case study 21 December 2009 13:30 UTC Foehn gap over Pyrenees Strong southwesterly winds over Spain produce a foehn gap over the northern side of Pyrenees. Case study 23 September 2009 12:00 UTC Backbuilding storms between Tunisia and Sicily The storms which occurred on 23 September between Tunisia and Sicily were interesting from several aspects. Case study 27 June 2009 15:30 UTC Thunderstorms active in a levelled pressure field Thunderstorms in a levelled pressure field, June 2009. Case study 20-26 June 2009 12:00 UTC Dust from west Africa to the Lesser Antilles Dust outbreak from Western Africa to the Lesser Antilles as seen by Meteosat-9. Case study 25 May 2009 13:05 UTC Severe storms over Western and Central Europe The first major outbreak of thunderstorms in Central Europe in 2009 occurred from 24–26 May. Case study 4 May 2009 05:00 UTC Contrails over western Europe Contrails over western Europe seen by Meteosat-9. Case study 3 April 2009 08:35 UTC Sea fog over the North Sea Sea fog over the North Sea as seen by Meteosat-8. Case study 10 February 2009 02:00 UTC Severe storm causes travel chaos in Central Europe Severe winter storm sweeps across Central Europe, Feb 2009. Case study 30 January 2009 12:00 UTC Cold front approaches Portugal and Spain Cold front approaches Portugal and Spain as seen by Meteosat-9. Case study 23 January 2009 00:00 UTC Western Europe hit by worst storm in a decade In January 2009, Western Europe was hit by an extremely severe storm. Case study 9 January 2009 00:00 UTC Very low temperatures & snow across parts of Europe Freezing temperatures, combined with heavy snow in the first 10 days of January 2009.