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Storm Elpis
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 ... [...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] |
Antalya
Antalya () is the List of largest cities and towns in Turkey, fifth-most populous city in Turkey as well as the capital of Antalya Province. Located on Anatolia's southwest coast bordered by the Taurus Mountains, Antalya is the largest Turkish city on the Mediterranean coast outside the Aegean region with over one million people in its metropolitan area.2011 Census Turkish Statistical Institute (Büyükşehir belediyeleri ve bağlı belediyelerin nüfusları) – 2011 The city that is now Antalya was first settled around 200 BC by the Attalid dynasty of Pergamon, which was soon subdued by the Romans. Roman rule saw Antalya thrive, including the construction of several new monuments, such as Hadrian's Gate, and the proliferation of ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thrace
Thrace (; el, Θράκη, Thráki; bg, Тракия, Trakiya; tr, Trakya) or Thrake is a geographical and historical region in Southeast Europe, now split among Bulgaria, Greece, and Turkey, which is bounded by the Balkan Mountains to the north, the Aegean Sea to the south, and the Black Sea to the east. It comprises southeastern Bulgaria (Northern Thrace), northeastern Greece (Western Thrace), and the European part of Turkey ( East Thrace). The region's boundaries are based on that of the Roman Province of Thrace; the lands inhabited by the ancient Thracians extended in the north to modern-day Northern Bulgaria and Romania and to the west into the region of Macedonia. Etymology The word ''Thrace'' was first used by the Greeks when referring to the Thracian tribes, from ancient Greek Thrake (Θρᾴκη), descending from ''Thrāix'' (Θρᾷξ). It referred originally to the Thracians, an ancient people inhabiting Southeast Europe. The name ''Europe'' first referred to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snowsquall
A snowsquall, or snow squall, is a sudden moderately heavy snowfall with blowing snow and strong, gusty surface winds. It is often referred to as a whiteout and is similar to a blizzard but is localized in time or in location and snow accumulations may or may not be significant. Types There are two primary types of snowsqualls: lake effect and frontal. Lake-effect snow When arctic air moves over large expanses of warmer open waters in winter, convective clouds develop which cause heavy snow showers due to the large amount of moisture available. This occurs southwest of extratropical cyclones, with the curved cyclonic wind flow bringing cold air across the relatively warm Great Lakes which then leads to narrow lake-effect snow bands that can produce significant localized snowfall. Whiteout conditions will affect narrow corridors from shores to inland areas aligned along the prevailing wind direction. This will be enhanced when the moving air mass is uplifted by higher eleva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake-effect Snow
Lake-effect snow is produced during cooler atmospheric conditions when a cold air mass moves across long expanses of warmer lake water. The lower layer of air, heated up by the lake water, picks up water vapor from the lake and rises up through the colder air above. The vapor then freezes and is deposited on the leeward (downwind) shores. The same effect also occurs over bodies of saline water, when it is termed ocean-effect or bay-effect snow. The effect is enhanced when the moving air mass is uplifted by the orographic influence of higher elevations on the downwind shores. This uplifting can produce narrow but very intense bands of precipitation, which deposit at a rate of many inches of snow each hour, often resulting in a large amount of total snowfall. The areas affected by lake-effect snow are called snowbelts. These include areas east of the Great Lakes in North America, the west coasts of northern Japan, the Kamchatka Peninsula in Russia, and areas near the Great S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weather Front
A weather front is a boundary separating air masses for which several characteristics differ, such as air density, wind, temperature, and humidity. Disturbed and unstable weather due to these differences often arises along the boundary. For instance, cold fronts can bring bands of thunderstorms and cumulonimbus precipitation or be preceded by squall lines, while warm fronts are usually preceded by stratiform precipitation and fog. In summer, subtler humidity gradients are known as dry lines can trigger severe weather. Some fronts produce no precipitation and little cloudiness, although there is invariably always a wind shift. Cold fronts generally move from west to east, whereas warm fronts move poleward, although any direction is possible. Occluded fronts are a hybrid merge of the two, and stationary fronts are stalled in their motion. Cold fronts and cold occlusions move faster than warm fronts and warm occlusions because the dense air behind them can lift as well as push ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southeast Europe
Southeast Europe or Southeastern Europe (SEE) is a geographical subregion of Europe, consisting primarily of the Balkans. Sovereign states and territories that are included in the region are Albania, Bosnia and Herzegovina, Bulgaria, Croatia (alternatively placed in Central Europe), Cyprus (alternatively placed in West Asia), Greece (alternatively placed in Southern Europe), Kosovo, Montenegro, North Macedonia, Romania, Serbia, and Turkey (alternatively placed in Southern Europe or West Asia). Sometimes, Moldova (alternatively placed in Eastern Europe) and Slovenia (alternatively placed in Central Europe) are also included. The largest city of the region is Istanbul, followed by Bucharest, Sofia, Belgrade, and Athens. There are overlapping and conflicting definitions of the region, due to political, economic, historical, cultural, and geographical considerations. Definition The first known use of the term "Southeast Europe" was by Austrian researcher Johann Georg von Hahn (1811 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Russia
European Russia (russian: Европейская Россия, russian: европейская часть России, label=none) is the western and most populated part of Russia. It is geographically situated in Europe, as opposed to the country's sparsely populated and vastly larger eastern part, which is situated in Asia, encompassing the entire northern region of the continent. The Ural Mountains divide Russia into two parts, bisecting the Eurasian supercontinent. European Russia covers the vast majority of Eastern Europe, and spans roughly 40% of Europe's total landmass, with over 15% of its total population, making Russia the largest and most populous country in Europe. Area and demographics European Russia accounts for about 75% of Russia's total population. It covers an area of over , with a population of nearly 110 million—making Russia the largest and most populous country in Europe. European Russia is the densest region of Russia, with a population density o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Low-pressure Area
In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), while high-pressure areas are associated with lighter winds and clear skies. Winds circle anti-clockwise around lows in the northern hemisphere, and clockwise in the southern hemisphere, due to opposing Coriolis force, Coriolis forces. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the Atmosphere of Earth, atmosphere (aloft). The formation process of a low-pressure area is known as cyclogenesis. In Meteorology#Dynamic meteorology, meteorology, atmospheric divergence aloft occurs in two kinds of places: * The first is in the area on the east side of upper Trough (meteorology), troughs, which form half of a Rossby wave within the Westerlies (a trough (meteorology), trough with la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Storm Diomedes
A storm is any disturbed state of the natural environment or the atmosphere of an astronomical body. It may be marked by significant disruptions to normal conditions such as strong wind, tornadoes, hail, thunder and lightning (a thunderstorm), heavy Precipitation (meteorology), precipitation (snowstorm, rainstorm), heavy freezing rain (ice storm), strong winds (tropical cyclone, windstorm), wind transporting some Chemical substance, substance through the Earth's atmosphere, atmosphere such as in a dust storm, among other forms of severe weather. Storms have the potential to harm lives and property via storm surge, heavy rain or snow causing flooding or road impassibility, lightning, wildfires, and vertical and horizontal wind shear. Systems with significant rainfall and duration help alleviate drought in places they move through. Heavy snowfall can allow special recreational activities to take place which would not be possible otherwise, such as skiing and snowmobiling. The Eng ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
