{"id":338449,"date":"2025-05-28T15:00:42","date_gmt":"2025-05-28T09:30:42","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=338449"},"modified":"2025-06-01T12:25:08","modified_gmt":"2025-06-01T06:55:08","slug":"madden-julian-oscillation-mjo","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/madden-julian-oscillation-mjo\/","title":{"rendered":"Madden-Julian Oscillation (MJO)"},"content":{"rendered":"<p data-start=\"178\" data-end=\"230\"><strong>News<\/strong>: The southwest monsoon arrived early, reaching Kerala on May 24 and Mumbai by May 26 \u2014 the earliest ever. The IMD says this was mainly due to favourable weather patterns, especially the <strong>Madden\u2013Julian Oscillation.<\/strong><\/p>\n<p data-start=\"178\" data-end=\"230\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" wp-image-339049 aligncenter\" src=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?resize=493%2C327&#038;ssl=1\" alt=\"Madden-Julian Oscillation (MJO)\" width=\"493\" height=\"327\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?resize=300%2C199&amp;ssl=1 300w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?resize=1024%2C680&amp;ssl=1 1024w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?resize=768%2C510&amp;ssl=1 768w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?w=1280&amp;ssl=1 1280w\" sizes=\"auto, (max-width: 493px) 100vw, 493px\" \/><\/p>\n<h2 data-start=\"178\" data-end=\"230\"><strong data-start=\"182\" data-end=\"230\">About\u00a0 Madden-Julian Oscillation (MJO)<\/strong><\/h2>\n<ul>\n<li data-start=\"234\" data-end=\"431\">It is a tropical atmospheric phenomenon characterized by a moving system of winds, clouds, and pressure that brings rainfall as it moves eastward along the equator.<\/li>\n<li data-start=\"434\" data-end=\"573\">It was discovered in 1971 by scientists Roland Madden and Paul Julian at the National Centre for Atmospheric Research in Boulder, Colorado.<\/li>\n<li data-start=\"576\" data-end=\"684\">The MJO typically completes one global cycle in 30 to 60 days, although it can sometimes take up to 90 days.<\/li>\n<li data-start=\"687\" data-end=\"852\">As it moves, the MJO creates two distinct zones \u2014 one where rainfall activity is enhanced (active phase) and another where rainfall is suppressed (suppressed phase).<\/li>\n<li data-start=\"855\" data-end=\"1041\">The MJO travels eastward at a speed of about 4 to 8 metres per second and primarily influences weather patterns in the tropical belt between 30\u00b0N and 30\u00b0S latitude, which includes India.<\/li>\n<li data-start=\"1044\" data-end=\"1177\">The MJO has a significant impact on tropical weather systems, including monsoons, cyclones, and periods of heavy rainfall or dryness.<\/li>\n<\/ul>\n<h2 data-start=\"1184\" data-end=\"1216\"><strong data-start=\"1188\" data-end=\"1216\">Phases and Impact of MJO<\/strong><\/h2>\n<ul>\n<li data-start=\"1220\" data-end=\"1368\">During its <strong data-start=\"1231\" data-end=\"1247\">active phase<\/strong>, the MJO leads to increased cloud formation, strong convection, and higher-than-average rainfall in the affected region.<\/li>\n<li data-start=\"1371\" data-end=\"1489\">In its <strong data-start=\"1378\" data-end=\"1398\">suppressed phase<\/strong>, the MJO inhibits convection and results in lower-than-average rainfall or dry conditions.<\/li>\n<li data-start=\"1492\" data-end=\"1601\">These alternating phases occur periodically and can influence multiple weather events within a single season.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>News: The southwest monsoon arrived early, reaching Kerala on May 24 and Mumbai by May 26 \u2014 the earliest ever. The IMD says this was mainly due to favourable weather patterns, especially the Madden\u2013Julian Oscillation. About\u00a0 Madden-Julian Oscillation (MJO) It is a tropical atmospheric phenomenon characterized by a moving system of winds, clouds, and pressure&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/madden-julian-oscillation-mjo\/\">Continue reading <span class=\"screen-reader-text\">Madden-Julian Oscillation (MJO)<\/span><\/a><\/p>\n","protected":false},"author":10366,"featured_media":339049,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,11209,12039],"tags":[11872,10500],"class_list":["post-338449","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-daily-factly-articles","category-geography-in-news","category-knolls","tag-9pm-daily-factly","tag-indian-express","entry"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2025\/05\/Madden-Julian-Oscillation-MJO.png?fit=1280%2C850&ssl=1","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/338449","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10366"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=338449"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/338449\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media\/339049"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=338449"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=338449"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=338449"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}