![]() These synoptic conditions are also referred to as a Spanish plume or as described in German as an "antizyklonale Südlage" (by the Free University of Berlin). Between the trough and a high pressure system over central Europe, a hot and moist airmass originating from northern Africa and the Mediterranean Sea made its way into western Europe. It deepened and expanded into a large trough and became almost stationary just off the coast of western Europe, roughly at the same latitude as France. On June 4, a small low pressure system formed just south of Greenland and raced southeast the following day. The responsible low pressure system is also referred to as storm " Ela" in some German media. Outbreaks of severe weather associated with this system spanned over 5 days from June 6 to June 11, with the worst damage occurring in the German state of North Rhine-Westphalia on 9 June, where the storm was described as one of the most violent in decades by the German Weather Service ( Deutscher Wetterdienst). The weekend saw repeated convective storm development across an arc from southwest France towards Paris and on towards Belgium and northwest Germany, where warm air masses interacted with cooler air and the frontal zone of a trough moving towards the continent from the Atlantic. The 2014 Pentecost weekend storms in Europe were a series of intense supercells and MCSs affecting western and central Europe, which followed a heatwave in early June 2014, resulting from a Spanish plume synoptic weather pattern. ![]() Lightning above Paris on 9 June 2014 at 00h30ġ44 km/h (89 mph) in Düsseldorf, Germany.ġ Most severe tornado damage see Fujita scale
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