{"id":9077,"date":"2022-04-23T00:00:00","date_gmt":"2022-04-23T00:00:00","guid":{"rendered":"https:\/\/www.nextias.com\/current_affairs\/uncategorized\/23-04-2022\/western-disturbances\/"},"modified":"2025-07-30T18:36:31","modified_gmt":"2025-07-30T13:06:31","slug":"western-disturbances","status":"publish","type":"post","link":"https:\/\/www.nextias.com\/ca\/current-affairs\/23-04-2022\/western-disturbances","title":{"rendered":"Western Disturbances"},"content":{"rendered":"<h2><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>In News<\/u><\/strong><\/span><\/span><\/span><\/h2>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Variations in the intensity and locations of the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Western Disturbances <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">have brought heavy rainfall to Delhi during some months and kept the city dry and in the grip of a heat wave at other times.<\/span><\/span><\/span><\/li>\n<\/ul>\n<h2><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>What is Western Disturbance (WD)?<\/u><\/strong><\/span><\/span><\/span><\/h2>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">It is an<\/span><\/span><\/span> <span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><em>extra-tropical storm<\/em><\/strong><\/span><\/span><\/span> <span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">that originates in the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><em>Mediterranean region<\/em><\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><em>.<\/em><\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">The disturbance travels from the <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><em>\u201c<\/em><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><em>western\u201d to the eastern direction<\/em><\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><em>.<\/em><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">\u00a0<\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: square;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Disturbance means an area of <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><em>\u201cdisturbed\u201d or reduced air pressure.\u00a0<\/em><\/strong><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: square;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Equilibrium exists in nature due to which the air in a region tries to normalize its pressure.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: square;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">The WD is not always the harbinger of good weather.<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">In the term<\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong> \u201cextra-tropical storm<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">\u201d, the storm refers to low pressure.\u00a0<\/span><\/span><\/span>\n<ul>\n<li style=\"list-style-type: circle;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>\u201cExtra-tropical&#8221;<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> means outside the tropics (as WD originates outside the tropical region).<\/span><\/span><\/span><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong><u>Impacts\u00a0<\/u><\/strong><\/span><\/span><\/span><\/h2>\n<ul>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">It <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>brings rainfall, snowfall, and fog<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> to northern India.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">If <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>winds (jet stream) flow from the west to east<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> direction at an altitude of 30,000 feet then the weather will be stable in that region.\u00a0<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">A jet stream is a river-like current of air circulating across the globe at upper <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>levels of the troposphere.<\/strong><\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">WD is <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>important for the agriculture of the Rabi crop<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> in the Northern subcontinent.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">WD <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>brings winter and pre-monsoon rain <\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">and is important for the development of the Rabi crop in the Northern subcontinent.<\/span><\/span><\/span><\/li>\n<li style=\"list-style-type: disc;\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\">Sometimes <\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>WDs can cause extreme weather events<\/strong><\/span><\/span><\/span><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"> like floods, flash floods, landslides, dust storms, hail storms, and cold waves, Dense fog, killing people, destroying infrastructure, and impacting livelihoods.<\/span><\/span><\/span><\/li>\n<\/ul>\n<p><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #000000;\"><strong>Source: <\/strong><\/span><\/span><\/span><a style=\"text-decoration: none;\" href=\"https:\/\/indianexpress.com\/article\/cities\/delhi\/explained-how-western-disturbances-are-keeping-delhi-weather-in-a-flux-7882979\/\" rel=\"nofollow noopener\" target=\"_blank\"><span style=\"font-size: 12pt;\"><span style=\"font-family: 'Book Antiqua',serif;\"><span style=\"color: #1155cc;\"><strong>IE<\/strong><\/span><\/span><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In News Variations in the intensity and locations of the Western Disturbances have brought heavy rainfall to Delhi during some months and kept the city dry and in the grip of a heat wave at other times. What is Western Disturbance (WD)? It is an extra-tropical storm that originates in the Mediterranean region. The disturbance [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[25,45],"class_list":["post-9077","post","type-post","status-publish","format-standard","hentry","category-current-affairs","tag-gs1","tag-important-geophysical-phenomena"],"acf":[],"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/9077","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/comments?post=9077"}],"version-history":[{"count":0,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/posts\/9077\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/media?parent=9077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/categories?post=9077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.nextias.com\/ca\/wp-json\/wp\/v2\/tags?post=9077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}