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In meteorology, a low-pressure area, low area or low is a region where the atmospheric pressure is lower than that of surrounding locations. It is the opposite of a high-pressure area . Low-pressure areas are commonly associated with inclement weather (such as cloudy, windy, with possible rain or storms), [ 1 ] while high-pressure areas are ...
A low-pressure area is a region where the atmospheric pressure at sea level is below that of surrounding locations. Low-pressure systems form under areas of wind divergence that occur in the upper levels of the troposphere. [1] The formation process of a low-pressure area is known as cyclogenesis. [2]
The Asiatic Low is a low-pressure trough which lies over southern Asia, during early summer. It is located roughly over India , heading over the Bay of Bengal . It is a major action centre for the Northern Hemisphere during that time of the year.
The French meteorologist Léon Teisserenc de Bort was the first in 1881 to apply this term to maxima and minima of pressure on daily charts. The main centers of action in the Northern Hemisphere are the Icelandic Low, the Aleutian Low, the Azores/Bermuda High, the Pacific High, the Siberian High (in winter), and the Asiatic Low (in summer). [7]
A Colorado low is a low-pressure area that forms in southeastern Colorado or northeastern New Mexico, typically in the winter. After forming, the system moves across the Great Plains . [ 1 ] Colorado lows can produce heavy wintry precipitation , and have a general east to northeast movement, impacting regions as far north as Winnipeg and as far ...
That, combined with the rise of the hot air, results in a low pressure area called a thermal low. [1] Over elevated surfaces, heating of the ground exceeds the heating of the surrounding air at the same altitude above sea level, which creates an associated heat low over the terrain, and enhances any thermal lows which would have otherwise existed.
The Hadley cell diagram at the top of the page shows the circulation of low pressure areas in both hemispheres already. New wording has been added to indicate that both hemispheres have a polar low. Thegreatdr 13:49, 24 December 2009 (UTC) Low pressure systems also occur in more tropical latitudes.
1 Low pressure system. Toggle the table of contents. Wikipedia: Featured picture candidates/Low pressure area. ... English. Read; Edit; View history; Tools. Tools ...