{"id":394983,"date":"2025-08-13T20:35:20","date_gmt":"2025-08-13T18:35:20","guid":{"rendered":"https:\/\/climatescience.press\/?p=394983"},"modified":"2025-08-13T20:35:23","modified_gmt":"2025-08-13T18:35:23","slug":"claim-north-atlantic-faces-more-hurricane-clusters-as-climate-warms","status":"publish","type":"post","link":"https:\/\/climatescience.press\/?p=394983","title":{"rendered":"CLAIM: North Atlantic faces more hurricane clusters as climate warms"},"content":{"rendered":"\n
\"Satellite
This image from NOAA’s GOES-16 satellite on September 14, 2020, shows five tropical systems spinning in the Atlantic basin at one time. From left to right: Hurricane Sally in the Gulf of Mexico, Hurricane Paulette east of the Carolinas, the remnants of Tropical Storm Rene in the central Atlantic, and Tropical Storms Teddy and Vicky in the eastern Atlantic. A total of 10 named storms formed in September 2020 \u2014 the most for any month on record.\u00a0(Image credit: NOAA)<\/figcaption><\/figure>\n\n\n\n

<\/p>\n\n\n\n

From Watts Up With That?<\/a><\/p>\n\n\n\n

By Anthony Watts<\/a><\/p>\n\n\n\n

From Fudan University and the \u201cclustered climate science\u201d department comes this inanity. They can\u2019t show a trend in North Atlantic Hurricanes so they change the narrative to \u201cclusters\u201d of hurricanes. Of course, nobody could see such clusters before the satellite era, so what did they do? Make a \u201cprobabilistic framework<\/em>\u201d aka model of course \u2013 Anthony<\/em><\/p>\n\n\n\n

Tropical cyclone cluster events over the North Atlantic.<\/strong> <\/strong>This image from NOAA\u2019s GOES-16 satellite on September 14, 2020, shows five tropical systems spinning in the Atlantic basin at one time. From left to right: Hurricane Sally in the Gulf of Mexico, Hurricane Paulette east of the Carolinas, the remnants of Tropical Storm Rene in the central Atlantic, and Tropical Storms Teddy and Vicky in the eastern Atlantic. A total of 10 named storms formed in September 2020 \u2014 the most for any month on record. (Image credit: NOAA<\/a>)<\/p>\n\n\n\n

Tropical cyclones, commonly known as typhoons or hurricanes, can form in clusters and impact coastal regions back-to-back. For example, Hurricanes Harvey, Irma and Maria hit U.S. sequentially within one month in 2017. The Federal Emergency Management Agency failed to provide adequate support to hurricane victims in Puerto Rico when Maria struck because most rescue resources and specialized disaster staffers were deployed for the responses to Hurricanes Harvey and Irma.<\/p>\n\n\n\n

A new study published in Nature Climate Change<\/em> confirms these hurricane clusters are becoming more frequent in the North Atlantic in recent decades\u2014a trend projected to continue in the near future.<\/p>\n\n\n\n

Tropical cyclone clusters describe the event that two or more tropical cyclones present simultaneously within the same basin. This phenomenon is not rare, as historically only 40% of tropical cyclones appeared alone. Beyond the combined impacts of individual storms, tropical cyclone clusters can cause disproportionate damage as coastal communities and infrastructures need time to bounce back from the impact of the first storm. Understanding tropical cyclone clusters and their future is thus important for coastal risk management.<\/p>\n\n\n\n

Analysing the historical observation of tropical cyclones, the authors found that during the past few decades, the chances for tropical cyclone cluster decreased in the Northwestern Pacific basin, while increased in North Atlantic basin. \u201cWe tried to develop a probabilistic framework to understand this trend\u201d said Dazhi Xi, a climatologist at HKU who co-led the study and developed the methodology, \u201cIf tropical cyclone clusters are formed by chance, then only storm frequency, storm duration, and storm seasonality can impact the chance. So, as a first attempt we simulate the formation of tropical cyclone clusters by probabilistic modelling, considering only these three mechanisms, and hoped we could find why tropical cyclone clusters changed in the past decades\u201d.<\/p>\n\n\n\n

However, the probabilistic model is only partly successful. For some years, it significantly underestimates the chance of tropical cyclone cluster. It is because some storms coexist with other storms not simply by chance, rather, they have physical linkage. \u201cThe previously seemed failed statistical model now soon becomes a powerful tool that can distinguish physical-linked tropical cyclone cluster with those by pure chance\u201d said Wen Zhou, a climatologist at Fudan University and the corresponding author of the study. For those years that the probabilistic model fails, the authors find that synoptic scale waves, a series of train-like atmospheric disturbances, enhance the chance of tropical cyclone cluster formation.<\/p>\n\n\n\n

The study further discovered that the La-Nina-like global warming pattern, characterized by slower warming in the Eastern Pacific compared to the Western Pacific, is the reason behind the observed shifts in tropical cyclone cluster hotspot. \u201cThe warming pattern not only modulates the frequency of tropical cyclones in the North Atlantic and Northwestern Pacific basins, but also impacts the strength of the synoptic scale waves, together causing the shift of tropical cyclone cluster hotspot from Northwestern Pacific to North Atlantic basin\u201d said Zheng-Hang Fu, a PhD student at Fudan University who co-led the study.<\/p>\n\n\n\n

The research establishes a probabilistic baseline model for investigating tropical cyclone cluster events and their underlying physical mechanisms. This framework not only explains the observed shift of tropical cyclone cluster hotspot from the Northwestern Pacific to the North Atlantic basin, but also provides a transferable methodology applicable to other ocean basins worldwide. Importantly, the authors identify the North Atlantic as an emerging hotspot for tropical cyclone clusters in recent decades. This finding calls for heightened attention from Atlantic coastal nations, urging them to develop proactive strategies against these compounding hazards.<\/p>\n\n\n\n

References:<\/strong><\/p>\n\n\n\n

Fu, Z.H., D. Xi, S.-P. Xie, W. Zhou, N. Lin, J. Zhao, X. Wang, and J.C.L. Chan, 2025: Shifting hotspot of tropical cyclone clusters in a warming climate. Nature Climate Change, 15. https:\/\/doi.org\/10.1038\/s41558-025-02397-9<\/a><\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

From Fudan University and the \u201cclustered climate science\u201d department comes this inanity. They can\u2019t show a trend in North Atlantic Hurricanes so they change the narrative to \u201cclusters\u201d of hurricanes. Of course, nobody could see such clusters before the satellite era, so what did they do? Make a \u201cprobabilistic framework\u201d aka model of course \u2013 Anthony<\/p>\n","protected":false},"author":121246920,"featured_media":394986,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","advanced_seo_description":"Explore the rise of tropical cyclone clusters in the North Atlantic, their trends, and impacts on coastal risk management strategies.","jetpack_seo_html_title":"Tropical Cyclone Clusters in the North Atlantic: A Growing Threat","jetpack_seo_noindex":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1],"tags":[691818056,691819743,691818087,691818104,691818541,691818873],"class_list":["post-394983","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-climate-change","tag-climate-propaganda","tag-global-warming","tag-hurricanes","tag-la-nina","tag-north-atlantic","fallback-thumbnail"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/climatescience.press\/wp-content\/uploads\/2025\/08\/0Screenshot-2025-08-13-203126.png?fit=1543%2C734&ssl=1","jetpack_likes_enabled":true,"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/paxLW1-1EKH","jetpack-related-posts":[{"id":259473,"url":"https:\/\/climatescience.press\/?p=259473","url_meta":{"origin":394983,"position":0},"title":"NOAA 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