{"id":1352,"date":"2025-12-07T15:03:39","date_gmt":"2025-12-07T15:03:39","guid":{"rendered":"https:\/\/spmiasacademy.com\/currentaffairs\/?p=1352"},"modified":"2026-03-10T06:10:30","modified_gmt":"2026-03-10T06:10:30","slug":"cyclone-ditwah-imd-forecast-impact","status":"publish","type":"post","link":"https:\/\/spmiasacademy.com\/currentaffairs\/cyclone-ditwah-imd-forecast-impact\/","title":{"rendered":"Cyclone Ditwah: Origin, Naming, IMD Forecast, and Impact on India &amp; Sri Lanka"},"content":{"rendered":"\n<p>Cyclone Ditwah has become one of the most discussed weather events of 2025. Formed over the <strong>Southwest Bay of Bengal<\/strong>, the cyclone surprised meteorologists because it originated in a region <strong>not commonly known for cyclone development<\/strong>. As the storm intensified, the <strong>India Meteorological Department (IMD)<\/strong> issued multiple alerts for Tamil Nadu, Puducherry, and South Andhra Pradesh. Moreover, Sri Lanka has already witnessed severe devastation due to the cyclone\u2019s unusual movement along its coastline.<\/p>\n\n\n\n<p>This article explains the <strong>origin of Cyclone Ditwah<\/strong>, the <strong>naming process<\/strong>, the <strong>IMD forecast<\/strong>, and the <strong>impact on India and Sri Lanka<\/strong>. It is highly useful for <strong>UPSC, APSC, SSC, and State PCS aspirants<\/strong> preparing current affairs.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is Cyclone Ditwah? \u2014 Latest Cyclone in the Bay of Bengal<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Cyclone Ditwah<\/strong> is a tropical cyclone that formed in late November 2025 over the <strong>Southwest Bay of Bengal<\/strong>.\n<ul class=\"wp-block-list\">\n<li>The Southwest Bay of Bengal is a zone that usually witnesses fewer cyclonic developments compared to the North Bay.&nbsp;<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>Despite this, two favourable environmental conditions aligned at the same time &#8211; <strong>warm sea surface temperatures<\/strong> and <strong>low vertical wind shear<\/strong>, making the formation of Ditwah possible.<\/li>\n\n\n\n<li>The IMD classified the system as a <strong>Cyclonic Storm<\/strong> after it intensified quickly within 24\u201336 hours.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Origin of Cyclone Ditwah:<\/h2>\n\n\n\n<p>Cyclone Ditwah originated from a <strong>well-marked low-pressure area<\/strong> over the Southwest Bay of Bengal on <strong>26 November 2025<\/strong>. As the system gained strength, it moved through the typical <strong>stages of cyclogenesis<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Key Factors Behind Cyclone Ditwah\u2019s Formation:<\/h2>\n\n\n\n<p>Several atmospheric and oceanic conditions supported its rapid development:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Warm Sea Surface Temperatures (28\u201330\u00b0C):<\/strong> Provided abundant heat energy for cyclone formation.<\/li>\n\n\n\n<li><strong>Low Vertical Wind Shear (10\u201315 knots):<\/strong> Allowed the storm clouds to grow vertically without disruption.<\/li>\n\n\n\n<li><strong>Moisture-Rich Monsoonal Winds:<\/strong> Constantly supplied moisture to the developing system.<\/li>\n\n\n\n<li><strong>Favourable Atmospheric Instability:<\/strong> Enabled rapid uplift and rotation.<\/li>\n<\/ul>\n\n\n\n<p>Because all these factors acted together, the system intensified from a low-pressure area to a cyclonic storm in a remarkably short time.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Naming of Cyclone Ditwah:<\/h2>\n\n\n\n<p>Cyclones forming in the North Indian Ocean are named according to a list maintained by <strong>WMO\u2013ESCAP<\/strong> (World Meteorological Organization and UN Economic and Social Commission for Asia-Pacific). The name <strong>\u201cDitwah\u201d<\/strong> was contributed by <strong>Yemen<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Meaning Behind the Name:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201cDitwah\u201d refers to <strong>Detwah Lagoon<\/strong>, an ecologically sensitive coastal waterbody in the <strong>Socotra Archipelago<\/strong> of Yemen.<\/li>\n\n\n\n<li>The lagoon is famous for its biodiversity and pristine landscape.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How Cyclone Names Are Selected:<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The North Indian Ocean naming list includes 13 countries: India, Bangladesh, Iran, Maldives, Myanmar, Oman, Pakistan, Qatar, Saudi Arabia, Sri Lanka, Thailand, UAE and Yemen.<\/li>\n\n\n\n<li>Names are assigned sequentially whenever a new cyclone forms.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Why Cyclone Ditwah Caused Large-Scale Damage?<\/h2>\n\n\n\n<p>Cyclone Ditwah behaved differently from most of the Bay of Bengal cyclones. Instead of forming north of Sri Lanka, it developed <strong>south of the island<\/strong>, a region that rarely generates cyclones.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Key Reasons for Severe Damage:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Sri Lanka is not cyclone-prone<\/strong> and lacks strong preparedness mechanisms.<\/li>\n\n\n\n<li>Cyclone Ditwah <strong>did not cross the landmass<\/strong>, unlike typical cyclones heading towards India.<\/li>\n\n\n\n<li>Instead, it <strong>moved parallel to the Sri Lankan coastline<\/strong>, allowing it to:\n<ul class=\"wp-block-list\">\n<li>Retain strength for a longer period<\/li>\n\n\n\n<li>Dump continuous heavy rainfall<\/li>\n\n\n\n<li>Intensify coastal flooding<\/li>\n\n\n\n<li>Increase the duration of destructive winds<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>As a result, the cyclone produced more damage than expected for its intensity.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">India\u2019s Humanitarian Response: Operation Sagar Bandhu:<\/h2>\n\n\n\n<p>India promptly expressed condolences to Sri Lanka after the devastating impact. Under <strong>Operation Sagar Bandhu<\/strong>, India delivered <strong>urgent Humanitarian Assistance and Disaster Relief (HADR)<\/strong> materials to support affected communities.<\/p>\n\n\n\n<p>This assistance aligns with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Neighbourhood First Policy<\/strong>, and<\/li>\n\n\n\n<li><strong>Vision MAHASAGAR<\/strong>, emphasizing India\u2019s leadership in humanitarian maritime cooperation.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Impact of Cyclone Ditwah on Sri Lanka:<\/h2>\n\n\n\n<p>Sri Lanka has been the worst-affected country in this cyclone event. Heavy rainfall and storm conditions caused severe disruptions across multiple districts.<\/p>\n\n\n\n<p><strong>Major Impacts in Sri Lanka<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Widespread flooding<\/strong> across urban and rural areas<\/li>\n\n\n\n<li><strong>Landslides<\/strong> in hilly regions<\/li>\n\n\n\n<li><strong>Severe storm damage<\/strong> to houses and public infrastructure<\/li>\n\n\n\n<li><strong>120+ deaths reported<\/strong>, with dozens injured<\/li>\n\n\n\n<li><strong>Large-scale displacement<\/strong> of families<\/li>\n\n\n\n<li>Disruption of transport networks, communication lines, bridges and road connectivity<\/li>\n<\/ul>\n\n\n\n<p>Overall, Cyclone Ditwah has emerged as one of the <strong>deadliest storms<\/strong> to impact Sri Lanka in recent years.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">IMD Forecast: Expected Impact of Cyclone Ditwah on India:<\/h2>\n\n\n\n<p>Although Sri Lanka faced the direct impact, India\u2019s east coast is expected to receive significant rainfall and strong winds as the cyclone moves northwards.<\/p>\n\n\n\n<p><strong>Likely Effects in Tamil Nadu, Puducherry &amp; Andhra Pradesh<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Heavy to extremely heavy rainfall<\/strong> in coastal districts<\/li>\n\n\n\n<li><strong>Urban flooding<\/strong> in Chennai, Puducherry, and Cuddalore<\/li>\n\n\n\n<li><strong>Strong winds<\/strong> capable of uprooting trees and damaging kutcha houses<\/li>\n\n\n\n<li><strong>Power supply disruptions<\/strong> due to snapped lines<\/li>\n\n\n\n<li><strong>Agricultural damage<\/strong>, especially:\n<ul class=\"wp-block-list\">\n<li>Paddy fields<\/li>\n\n\n\n<li>Banana plantations<\/li>\n\n\n\n<li>Coastal fisheries<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>High waves and storm surge<\/strong> threatening:\n<ul class=\"wp-block-list\">\n<li>Low-lying coastal villages<\/li>\n\n\n\n<li>Fishing harbours<\/li>\n\n\n\n<li>Marina and port activities<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<p>Fishermen have been advised to <strong>avoid venturing into the sea<\/strong> until further notice.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Cyclone Ditwah Matters &#8211; Environmental &amp; Policy Dimensions:<\/h2>\n\n\n\n<p>Cyclone Ditwah highlights several critical issues:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Changing Cyclogenesis Patterns: <\/strong>Cyclones forming unusually southwards indicate shifting climate patterns in the Indian Ocean.<\/li>\n\n\n\n<li><strong>Increased Vulnerability of Island Nations:<\/strong> Countries like Sri Lanka need stronger forecasting, infrastructure, and early-warning systems.<\/li>\n\n\n\n<li><strong>Need for Enhanced Coastal Resilience in India:<\/strong> Urban centres like Chennai remain highly vulnerable to <strong>flooding and storm surge events<\/strong>.<\/li>\n\n\n\n<li><strong>Regional Cooperation for Disaster Response:<\/strong> Operation Sagar Bandhu reinforces the importance of <strong>India &#8211; Sri Lanka cooperation<\/strong> in disaster relief.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Conclusion:<\/h2>\n\n\n\n<p>Cyclone Ditwah is a reminder that climate variability is reshaping the behaviour of tropical cyclones in the Indian Ocean. With its unusual origin, rapid intensification, and severe impact on Sri Lanka, the cyclone underscores the need for improved preparedness, coastal resilience, and regional collaboration.<\/p>\n\n\n\n<p>As IMD continues to monitor the system, coastal populations in Tamil Nadu, Puducherry, and Andhra Pradesh must stay alert and follow official advisories.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sources:<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.thehindu.com\/news\/cities\/chennai\/after-pounding-north-tamil-nadu-remnant-of-cyclone-ditwah-drifts-inland-city-to-get-light-rain-today\/article70353989.ece\">https:\/\/www.thehindu.com\/news\/cities\/chennai\/after-pounding-north-tamil-nadu-remnant-of-cyclone-ditwah-drifts-inland-city-to-get-light-rain-today\/article70353989.ece<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/cyclone-ditwah-sri-lanka-10398601\/\">https:\/\/indianexpress.com\/article\/explained\/explained-sci-tech\/cyclone-ditwah-sri-lanka-10398601\/<\/a><\/li>\n<\/ol>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1765119526520\"><strong class=\"schema-faq-question\"><strong>\u00a0What is Cyclone Ditwah?<\/strong><br\/><\/strong> <p class=\"schema-faq-answer\">Cyclone Ditwah is a tropical cyclone that formed in November 2025 over the Southwest Bay of Bengal and rapidly intensified due to warm sea temperatures and low wind shear.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765119564211\"><strong class=\"schema-faq-question\"><strong>\u00a0How did Cyclone Ditwah originate?<\/strong><br\/><\/strong> <p class=\"schema-faq-answer\">Cyclone Ditwah originated from a well-marked low-pressure area on 26 November 2025 and strengthened into a cyclonic storm within 24\u201336 hours.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765119588143\"><strong class=\"schema-faq-question\"><strong> Why is it named Cyclone Ditwah?<\/strong><br\/><\/strong> <p class=\"schema-faq-answer\">The name \u201cDitwah\u201d was contributed by Yemen under the WMO\u2013ESCAP naming system and refers to the Detwah Lagoon in the Socotra Archipelago.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765119630093\"><strong class=\"schema-faq-question\"><strong>Why did Cyclone Ditwah cause severe damage in Sri Lanka?<\/strong><br\/><\/strong> <p class=\"schema-faq-answer\">Cyclone Ditwah lingered along Sri Lanka\u2019s coastline instead of crossing land, causing prolonged rainfall, flooding, and wind damage in a region not accustomed to cyclones.<br\/><\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1765119667284\"><strong class=\"schema-faq-question\"><strong>What is the IMD forecast for Cyclone Ditwah in India?<\/strong><br\/><\/strong> <p class=\"schema-faq-answer\">IMD predicts heavy rainfall, strong winds, urban flooding, and high waves across Tamil Nadu, Puducherry, and South Andhra Pradesh as Cyclone Ditwah moves northward.<br\/><br\/><\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Cyclone Ditwah has become one of the most discussed weather events of 2025. Formed over the Southwest Bay of Bengal, the cyclone surprised meteorologists because<\/p>\n","protected":false},"author":2,"featured_media":1358,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1352","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cyclone Ditwah: Origin, Naming, IMD Forecast &amp; Impact<\/title>\n<meta name=\"description\" content=\"Know how Cyclone Ditwah formed, why it was named so, IMD\u2019s latest forecast, and its impact on India and Sri Lanka.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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