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Storm Elpida
Elpis, or Elpida in Greece, was a windstorm and blizzard that affected most of the Eastern Mediterranean. The storm caused blizzard conditions in northern Turkey and mountainous areas of Greece, as well as accumulating snowfall in milder locations further south, such as Athens, Antalya and Israel. Meteorological history Antecedent weather Atmospheric conditions in the weeks leading up to Elpis were defined by a change of large-scale weather patterns: a persistent ridge formed over Western Europe and a series of troughs in the jet stream occurred to its east. This, in turn, caused repeated instances of polar air outbreaks into the Balkans and the Eastern Mediterranean. Diomedes, an earlier and relatively minor storm, had already brought heavy rain and mountain snow to Greece, while causing significant sea-level snowfall in the normally colder region of northern Turkey. A weak low formed near Aegean Sea on the 21st of January, partially due to the southeastward movement of a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyclone
In meteorology, a cyclone () is a large air mass that rotates around a strong center of low atmospheric pressure, counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere as viewed from above (opposite to an anticyclone). Cyclones are characterized by inward-spiraling winds that rotate about a zone of low pressure. The largest low-pressure systems are polar vortices and extratropical cyclones of the largest scale (the synoptic scale). Warm-core cyclones such as tropical cyclones and subtropical cyclones also lie within the synoptic scale. Mesocyclones, tornadoes, and dust devils lie within smaller mesoscale. Upper level cyclones can exist without the presence of a surface low, and can pinch off from the base of the tropical upper tropospheric trough during the summer months in the Northern Hemisphere. Cyclones have also been seen on extraterrestrial planets, such as Mars, Jupiter, and Neptune. Cyclogenesis is the process of cyclone formation and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
