VARDAH 120KM./ HR. MAJOR CYCLONE APPROACHES TAMILNADU COAST CHENNAI NELLUR WEATHE article is about the meteorological phenomenon. For other uses, see Cyclone MAJOR CYCLONE APPROACHES TAMILNADU COAST CHENNAI WEATHER NELLUR
In meteorology, a cyclone is a large scale air mass that rotates around a strong center of low atmospheric pressure.[1][2] They are usually characterized by inward spiraling winds that rotate. All large-scale cyclones are centered on low-pressure areas.[3][4] 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.[5] Mesocyclones, tornadoes and dust devils lie within the smaller mesoscale.[6] 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 and Neptune.[7][8] Cyclogenesis describes the process of cyclone formation and intensification.[9] Extratropical cyclones begin as waves in large regions of enhanced mid-latitude temperature contrasts called baroclinic zones. These zones contract and form weather fronts as the cyclonic circulation closes and intensifies. Later in their life cycle, extratropical cyclones occlude as cold air masses undercut the warmer air and become cold core systems. A cyclone's track is guided over the course of its 2 to 6 day life cycle by the steering flow of the subtropical jet stream.
VARDAH MAJOR CYCLONE APPROACHES TAMILNADU COAST CHENNAI WEATHER NELLUR
Vardha cyclone reaches Tamilnadu
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