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Assessing the Role of Tropical Cyclones on Drought Characteristics in the Hurricane Region of the Americas Between 1983 and 2024.

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Title: Assessing the Role of Tropical Cyclones on Drought Characteristics in the Hurricane Region of the Americas Between 1983 and 2024.
Authors: Herrera, Dimitris A.1,2 (AUTHOR) dherrer3@utk.edu, Domínguez, Christian3 (AUTHOR), Centella, Abel4 (AUTHOR), Sánchez‐Murillo, Ricardo5 (AUTHOR), Hidalgo, Hugo G.6 (AUTHOR), Cook, Benjamin I.7 (AUTHOR), Maxwell, Justin T.8 (AUTHOR), Pons, Diego9 (AUTHOR), Bregy, Joshua C.10 (AUTHOR), Sierra‐Lorenzo, Maibys4 (AUTHOR), Bezanilla, Arnoldo4 (AUTHOR), Carrillo, Carlos M.11 (AUTHOR), Zhu, Yijie12 (AUTHOR), Núñez Ocasio, Kelly13 (AUTHOR), Taylor, Michael14 (AUTHOR), Stephenson, Tannecia14 (AUTHOR), Jones, Jhordanne14 (AUTHOR), Hammel, Jordyn1 (AUTHOR), Holliday, Karson1 (AUTHOR)
Source: Journal of Geophysical Research. Atmospheres. 5/16/2026, Vol. 131 Issue 9, p1-16. 16p.
Subject Terms: *Droughts, *Water management, *Climate change, *Meteorological precipitation, *Tropical storms, *Hazards, *Climate change adaptation, Tropical cyclones
Geographic Terms: Central America, Caribbean, Americas
Abstract: Droughts and tropical cyclones (TCs) are among the deadliest and costliest natural hazards and are expected to intensify in the twenty‐first century due to anthropogenic climate change. The Hurricane Region of the Americas (HRA), an area frequently affected by TCs and droughts, is home to some of the most vulnerable countries to these hazards and the impacts of climate change worldwide. While TCs and drought have been extensively studied separately, little research has been conducted on their interplay in the HRA, particularly in areas lacking quality long‐term climate data. In this work, we analyze the impact of TCs on drought characteristics, such as severity and duration, in the HRA from 1983 to 2024. We use high‐resolution gridded climate data and a variety of drought metrics to conduct our analysis. We find that, while TCs on average contribute to 4%–15% of annual and seasonal mean precipitation across the region, they also ameliorated or terminated drought at least once in ∼60% of the HRA in a single month in 1983–2024. As TCs continue to get wetter and droughts become more severe in the 21st century, it is critical to understand their interactions for water resource management and climate adaptation. Plain Language Summary: Droughts and tropical cyclones cause extensive damage worldwide. The Hurricane Region of the Americas, which includes North and Central America and the Caribbean Islands, is an area often impacted by tropical cyclones and drought. In this work, we analyze the role of tropical cyclone precipitation in changing the severity of drought in the Hurricane Region of the Americas between 1983 and 2024 using several estimates of drought severity. Results indicate that tropical cyclones ameliorated or terminated drought at least once during the study period in most of the Hurricane Region of the Americas. Key Points: Tropical cyclones contribute 4%–15% of annual and seasonal mean precipitation across the Hurricane Region of the AmericasWhile this is a small amount, tropical cyclones ended or reduced drought at least once in about 60% of the study area between 1983 and 2024Gridded precipitation data allow a better understanding of the spatial variability in the interaction between tropical cyclones and drought [ABSTRACT FROM AUTHOR]
Copyright of Journal of Geophysical Research. Atmospheres is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Assessing the Role of Tropical Cyclones on Drought Characteristics in the Hurricane Region of the Americas Between 1983 and 2024.
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  Data: <searchLink fieldCode="AR" term="%22Herrera%2C+Dimitris+A%2E%22">Herrera, Dimitris A.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> dherrer3@utk.edu</i><br /><searchLink fieldCode="AR" term="%22Domínguez%2C+Christian%22">Domínguez, Christian</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Centella%2C+Abel%22">Centella, Abel</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sánchez‐Murillo%2C+Ricardo%22">Sánchez‐Murillo, Ricardo</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hidalgo%2C+Hugo+G%2E%22">Hidalgo, Hugo G.</searchLink><relatesTo>6</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cook%2C+Benjamin+I%2E%22">Cook, Benjamin I.</searchLink><relatesTo>7</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Maxwell%2C+Justin+T%2E%22">Maxwell, Justin T.</searchLink><relatesTo>8</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pons%2C+Diego%22">Pons, Diego</searchLink><relatesTo>9</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bregy%2C+Joshua+C%2E%22">Bregy, Joshua C.</searchLink><relatesTo>10</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sierra‐Lorenzo%2C+Maibys%22">Sierra‐Lorenzo, Maibys</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bezanilla%2C+Arnoldo%22">Bezanilla, Arnoldo</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Carrillo%2C+Carlos+M%2E%22">Carrillo, Carlos M.</searchLink><relatesTo>11</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhu%2C+Yijie%22">Zhu, Yijie</searchLink><relatesTo>12</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Núñez+Ocasio%2C+Kelly%22">Núñez Ocasio, Kelly</searchLink><relatesTo>13</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Taylor%2C+Michael%22">Taylor, Michael</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Stephenson%2C+Tannecia%22">Stephenson, Tannecia</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jones%2C+Jhordanne%22">Jones, Jhordanne</searchLink><relatesTo>14</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hammel%2C+Jordyn%22">Hammel, Jordyn</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Holliday%2C+Karson%22">Holliday, Karson</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Geophysical+Research%2E+Atmospheres%22">Journal of Geophysical Research. Atmospheres</searchLink>. 5/16/2026, Vol. 131 Issue 9, p1-16. 16p.
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  Data: *<searchLink fieldCode="DE" term="%22Droughts%22">Droughts</searchLink><br />*<searchLink fieldCode="DE" term="%22Water+management%22">Water management</searchLink><br />*<searchLink fieldCode="DE" term="%22Climate+change%22">Climate change</searchLink><br />*<searchLink fieldCode="DE" term="%22Meteorological+precipitation%22">Meteorological precipitation</searchLink><br />*<searchLink fieldCode="DE" term="%22Tropical+storms%22">Tropical storms</searchLink><br />*<searchLink fieldCode="DE" term="%22Hazards%22">Hazards</searchLink><br />*<searchLink fieldCode="DE" term="%22Climate+change+adaptation%22">Climate change adaptation</searchLink><br /><searchLink fieldCode="DE" term="%22Tropical+cyclones%22">Tropical cyclones</searchLink>
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  Label: Geographic Terms
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  Data: <searchLink fieldCode="DE" term="%22Central+America%22">Central America</searchLink><br /><searchLink fieldCode="DE" term="%22Caribbean%22">Caribbean</searchLink><br /><searchLink fieldCode="DE" term="%22Americas%22">Americas</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Droughts and tropical cyclones (TCs) are among the deadliest and costliest natural hazards and are expected to intensify in the twenty‐first century due to anthropogenic climate change. The Hurricane Region of the Americas (HRA), an area frequently affected by TCs and droughts, is home to some of the most vulnerable countries to these hazards and the impacts of climate change worldwide. While TCs and drought have been extensively studied separately, little research has been conducted on their interplay in the HRA, particularly in areas lacking quality long‐term climate data. In this work, we analyze the impact of TCs on drought characteristics, such as severity and duration, in the HRA from 1983 to 2024. We use high‐resolution gridded climate data and a variety of drought metrics to conduct our analysis. We find that, while TCs on average contribute to 4%–15% of annual and seasonal mean precipitation across the region, they also ameliorated or terminated drought at least once in ∼60% of the HRA in a single month in 1983–2024. As TCs continue to get wetter and droughts become more severe in the 21st century, it is critical to understand their interactions for water resource management and climate adaptation. Plain Language Summary: Droughts and tropical cyclones cause extensive damage worldwide. The Hurricane Region of the Americas, which includes North and Central America and the Caribbean Islands, is an area often impacted by tropical cyclones and drought. In this work, we analyze the role of tropical cyclone precipitation in changing the severity of drought in the Hurricane Region of the Americas between 1983 and 2024 using several estimates of drought severity. Results indicate that tropical cyclones ameliorated or terminated drought at least once during the study period in most of the Hurricane Region of the Americas. Key Points: Tropical cyclones contribute 4%–15% of annual and seasonal mean precipitation across the Hurricane Region of the AmericasWhile this is a small amount, tropical cyclones ended or reduced drought at least once in about 60% of the study area between 1983 and 2024Gridded precipitation data allow a better understanding of the spatial variability in the interaction between tropical cyclones and drought [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Journal of Geophysical Research. Atmospheres is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=8gh&AN=193656129
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        Value: 10.1029/2025JD045998
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      – Code: eng
        Text: English
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      – SubjectFull: Droughts
        Type: general
      – SubjectFull: Water management
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      – SubjectFull: Climate change
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      – SubjectFull: Central America
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      – SubjectFull: Americas
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