{"id":57343,"date":"2025-07-30T11:06:40","date_gmt":"2025-07-30T05:36:40","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=57343"},"modified":"2025-07-30T11:06:40","modified_gmt":"2025-07-30T05:36:40","slug":"flash-floods-in-india-causes-climate-impact-adaptation-strategies","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/flash-floods-in-india-causes-climate-impact-adaptation-strategies\/","title":{"rendered":"Flash Floods in India: Causes, Climate Impact &#038; Adaptation Strategies"},"content":{"rendered":"<h2><b>Flash Floods in India Latest News<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Flash floods have emerged as a deadly and recurring hazard across India, claiming thousands of lives and damaging infrastructure annually.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Tragedies in Himachal Pradesh (July 2025), Kerala\u2019s Wayanad (July 2024), Ladakh (June 2024), and Sikkim (October 2023) underline the severity of the crisis.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These sudden and intense floods, primarily triggered by extreme rainfall, have become more frequent with rising global temperatures \u2014 increasing from 132 events in 2020 to 184 in 2022, as per the Union Jal Shakti Ministry.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Despite the mounting threat, there remains a lack of detailed research to pinpoint the most vulnerable regions, hampering the effectiveness of mitigation strategies like early warning systems.\u00a0<\/span><\/li>\n<\/ul>\n<h2><b>Study Related to Flash Floods in India<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">A recent IIT Gandhinagar study, published in <\/span><i><span style=\"font-weight: 400;\">Nature Hazards<\/span><\/i><span style=\"font-weight: 400;\">, addresses the lack of granular data on flash flood vulnerability in India.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study, <\/span><b>\u2018Drivers of flash floods in the Indian sub-continental river basins\u2019<\/b><span style=\"font-weight: 400;\">, identifies the Himalayas, western coast, and Central India as key hotspots, using hydrological and geomorphological data to map sub-basin susceptibility.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">In the Himalayas, steep terrain and elevation drive flood risk, while in the West Coast and Central India, rapid runoff\u2014termed &#8220;flashiness&#8221;\u2014plays a key role.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study finds that nearly 75% of flash floods result from a combination of extreme rainfall and already saturated soil, with only 25% due to precipitation alone.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Alarmingly, even previously low-risk basins are witnessing rising extreme rainfall, suggesting that <\/span><b>climate change may create new flash flood zones in the future<\/b><span style=\"font-weight: 400;\">.<\/span><\/li>\n<\/ul>\n<h2><b>Key Drivers Behind Flash Floods in India<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study reveals that only <\/span><b>25% of flash floods in India are caused solely by extreme rainfall<\/b><span style=\"font-weight: 400;\">.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Most incidents result from a combination of heavy precipitation and pre-existing soil saturation.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">When the ground is already wet, it cannot absorb additional rainfall, leading to rapid runoff and increased flood risk.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Notably, only 23% of extreme rainfall events trigger flash floods within six hours. Instead, prolonged periods of both low- and high-intensity rain are more likely to cause such disasters.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study also highlights regional variations.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">In the <\/span><b>western coast and Central India<\/b><span style=\"font-weight: 400;\">, sub-basins react quickly to rainfall due to their high &#8220;flashiness&#8221; \u2014 the tendency of water levels to rise rapidly.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><b>In the Himalayan region<\/b><span style=\"font-weight: 400;\">, steep terrain and high relief further elevate the risk.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Within <\/span><b>major river basins like the Ganga<\/b><span style=\"font-weight: 400;\">, flash flood susceptibility differs \u2014 sub-basins in the southern Himalayan stretch are more prone, while central areas show lower risk.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">This points to how terrain and local climatic conditions strongly influence flash flood vulnerability.<\/span><\/li>\n<\/ul>\n<h2><b>Climate Change Intensifies Flash Flood Risk in India<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Rising global temperatures are significantly contributing to the increase in frequency and severity of flash floods.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>As the atmosphere warms, it retains more moisture<\/b><span style=\"font-weight: 400;\"> \u2014 about 7% more for every 1\u00b0C rise \u2014 leading to heavier rainfall events.\u00a0<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">In India, from 1981 to 2020, the incidence of extreme rainfall during the pre-monsoon season doubled.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">During the monsoon, post-monsoon, and winter seasons, extreme precipitation increased by 56%, 40%, and 12.5% respectively.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">Notably, over 75% of flash floods between 1980 and 2018 occurred during the monsoon season.<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study also shows that flash floods have risen sharply since 1995, especially in the Brahmaputra, Ganga, and Krishna river basins.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Interestingly, many regions that were not previously flood-prone are now experiencing more &#8220;wet hours&#8221; and higher streamflow due to warming temperatures.<\/span>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"2\"><span style=\"font-weight: 400;\">51% of non-prone sub-basins showing increased rainfall and 66.5% showing higher streamflow.\u00a0<\/span><\/li>\n<\/ul>\n<\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Conversely, some existing flood-prone areas are seeing a decline in wet hours, indicating shifting climate patterns and flood vulnerabilities.<\/span><\/li>\n<\/ul>\n<h2><b>Region-Specific Adaptation Key to Mitigating Flash Flood Risks<\/b><\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The study highlights the need for region-specific adaptation strategies tailored to topography, soil conditions, and not just rainfall intensity.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Such localized approaches can strengthen early warning systems, improve disaster preparedness, and support long-term resilience planning.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Researchers emphasize the urgency of identifying emerging flash flood hotspots and investing in climate-resilient infrastructure to reduce the impact of extreme events.\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Additionally, with shifting rainfall patterns and rising temperatures, improved land-use planning and integrated flood management are essential for effective mitigation.<\/span><\/li>\n<\/ul>\n<p><b>Source<\/b><span style=\"font-weight: 400;\">: <\/span><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-climate\/flash-floods-india-10156865\/\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">IE<\/span><\/a><span style=\"font-weight: 400;\"> | <\/span><a href=\"https:\/\/www.nature.com\/articles\/s44304-025-00121-3\" target=\"_blank\" rel=\"nofollow noopener\"><span style=\"font-weight: 400;\">Nature<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Explore the rise in flash floods across India, their causes, climate links, and region-specific adaptation strategies to mitigate damage.<\/p>\n","protected":false},"author":18,"featured_media":57354,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[18],"tags":[1887,60,22,1888],"class_list":{"0":"post-57343","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-mains-current-affairs","8":"tag-flash-floods-in-india","9":"tag-mains-articles","10":"tag-upsc-current-affairs","11":"tag-upsc-mains-current-affair","12":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/57343","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=57343"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/57343\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/57354"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=57343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=57343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=57343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}