Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics
ABSTRACT Tropical cyclone best track data in the Atlantic from 1950 to 2009 were analysed to determine whether tendency to rapidly intensify varied among geographical sub‐regions, 15‐d intervals within the season, or when the storm displayed different characteristics of age, strength, or time of day...
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crwiley:10.1002/joc.3744 2024-06-02T08:11:34+00:00 Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics Yaukey, Peter H. 2013 http://dx.doi.org/10.1002/joc.3744 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3744 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3744 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor International Journal of Climatology volume 34, issue 4, page 1038-1049 ISSN 0899-8418 1097-0088 journal-article 2013 crwiley https://doi.org/10.1002/joc.3744 2024-05-03T10:35:14Z ABSTRACT Tropical cyclone best track data in the Atlantic from 1950 to 2009 were analysed to determine whether tendency to rapidly intensify varied among geographical sub‐regions, 15‐d intervals within the season, or when the storm displayed different characteristics of age, strength, or time of day. Wind speed increases of 7.7 m s −1 (15 kt)/24 h and 15.4 m s −1 (30 kt)/24 h were used to define intensification events; these ended up showing similar patterns. Cyclones were most likely to begin intensifying in the Gulf of Mexico and least likely in the northeast Atlantic. Likelihood did not peak during the early September peak of cyclone occurrence; cyclones were most likely to begin intensification on their initial observations, and at that time were most likely to do so if their wind speed was 18.0 m s −1 (35 kt). Older cyclones showed peaks of intensification onset at 15.4 m s −1 (30 kt) and 36.0 m s −1 (70 kt). Intensification rarely began immediately after wind speed had declined over the previous 6 h; when winds had been unchanged, intensification most often occurred when central pressure had dropped by 1 or 2 mb. Intensification onset was more likely when winds were slower than average relative to the storm's central pressure. In three time zones, onset of intensification (7.7 m s −1 [15 kt]/24 h) appeared to be most likely shortly after midnight local time, and least likely shortly before midnight. Cyclogenesis was least frequent around local midnight, and most likely in the diurnal morning hours. Article in Journal/Newspaper North Atlantic Northeast Atlantic Wiley Online Library International Journal of Climatology 34 4 1038 1049 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
ABSTRACT Tropical cyclone best track data in the Atlantic from 1950 to 2009 were analysed to determine whether tendency to rapidly intensify varied among geographical sub‐regions, 15‐d intervals within the season, or when the storm displayed different characteristics of age, strength, or time of day. Wind speed increases of 7.7 m s −1 (15 kt)/24 h and 15.4 m s −1 (30 kt)/24 h were used to define intensification events; these ended up showing similar patterns. Cyclones were most likely to begin intensifying in the Gulf of Mexico and least likely in the northeast Atlantic. Likelihood did not peak during the early September peak of cyclone occurrence; cyclones were most likely to begin intensification on their initial observations, and at that time were most likely to do so if their wind speed was 18.0 m s −1 (35 kt). Older cyclones showed peaks of intensification onset at 15.4 m s −1 (30 kt) and 36.0 m s −1 (70 kt). Intensification rarely began immediately after wind speed had declined over the previous 6 h; when winds had been unchanged, intensification most often occurred when central pressure had dropped by 1 or 2 mb. Intensification onset was more likely when winds were slower than average relative to the storm's central pressure. In three time zones, onset of intensification (7.7 m s −1 [15 kt]/24 h) appeared to be most likely shortly after midnight local time, and least likely shortly before midnight. Cyclogenesis was least frequent around local midnight, and most likely in the diurnal morning hours. |
format |
Article in Journal/Newspaper |
author |
Yaukey, Peter H. |
spellingShingle |
Yaukey, Peter H. Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
author_facet |
Yaukey, Peter H. |
author_sort |
Yaukey, Peter H. |
title |
Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
title_short |
Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
title_full |
Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
title_fullStr |
Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
title_full_unstemmed |
Intensification and rapid intensification of North Atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
title_sort |
intensification and rapid intensification of north atlantic tropical cyclones: geography, time of year, age since genesis, and storm characteristics |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1002/joc.3744 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3744 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3744 |
genre |
North Atlantic Northeast Atlantic |
genre_facet |
North Atlantic Northeast Atlantic |
op_source |
International Journal of Climatology volume 34, issue 4, page 1038-1049 ISSN 0899-8418 1097-0088 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.3744 |
container_title |
International Journal of Climatology |
container_volume |
34 |
container_issue |
4 |
container_start_page |
1038 |
op_container_end_page |
1049 |
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1800757766289096704 |