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This is due to increasing Coriolis force closer to the poles, and which is zero at the equator. [2] [3] [4] One associated phenomenon often seen with low-latitude cyclones is the equatorial westerly wind burst, which allows for sufficient shear vorticity on both sides of the equator to support tropical cyclogenesis. [5]
A tropical cyclone is the generic term for a warm-cored, non-frontal synoptic-scale low-pressure system over tropical or subtropical waters around the world. [4] [5] The systems generally have a well-defined center which is surrounded by deep atmospheric convection and a closed wind circulation at the surface. [4]
Some days later it split into two, with the southern half crossing into the Pacific, where it developed into Hurricane Lorena. [16] Later in the same month, Tropical Depression Nine degenerated into a tropical wave in the Atlantic, where it continued travelling westwards, crossing into the Pacific, where it developed into Hurricane Octave. [17]
A hurricane is a sort of atmospheric engine, spinning about its axis—counterclockwise north of the equator, clockwise south of the equator—thanks to the Coriolis effect, which is caused by the ...
High shear explains why no cyclones can form in the Red Sea, which possesses the necessary depth, vorticity and surface temperatures year-round. Rarely do tropical cyclones that form elsewhere in this basin affect the Arabian Peninsula or Somalia ; however, Cyclone Gonu caused heavy damage in Oman on the peninsula in 2007.
The National Hurricane Center’s forecast map Thursday showed five separate lemon-yellow circles for potential storm formation. But none of those storms listed a development potential over 30% ...
Obviously, the main purpose of naming a tropical cyclone/hurricane is basically for people easily to understand and remember the tropical cyclone/hurricane in a region, thus to facilitate tropical ...
Aviation records take account of the wind circulation patterns of the world; in particular the jet streams, which circulate in the northern and southern hemispheres without crossing the equator. There is therefore no requirement to cross the equator, or to pass through two antipodal points, in the course of setting a round-the-world aviation ...