A satellite photo of Great Britain and part of Ireland showing the extent of snow cover during the winter of 2009–2010, the coldest in Europe since 1981–82. Starting on 16 December 2009 a persistent weather pattern brought cold moist air from the north with systems undergoing cyclogenesis from North American storms moving across the Atlantic Ocean to the west, and saw many parts of Europe experiencing heavy snowfall and record low temperatures.Photo: Jeff Schmaltz, MODIS Rapid Response Team, NASA
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