Francisco Javier Villicaña, Enrique Azpra-Romero, María Engracia Hernández-Cerda


This article uses the database known as Best Track is used, which only contain information on those tropical disturbances that at least reached tropical storm status. This information is used to study of the origin, dissipation, abundance, seasonal variability, start and end of the season, intensity, duration and path of tropical cyclones that occur within the North Eastern Pacific basin. The statistics are calculated based on the calendar year between 1949 and 2013 and records are divided three subsets: all basin (1949-2013); from 140°W and eastward and; satellite era (1966-2013). As to the origin, the most active strip is located between 10 and 15°N and 95 and 110°W; whereas for dissipation, the active strip is 5° farther North. The most abundant period is in the eighties, followed by the nineties; while the busiest month is August followed by September. The season runs from May 15th to November 30th and only in February and April there is no activity. During the satellite era, intensities are generally higher than in the previous one; in most of the cyclones, the intensity varies between 70 and 75 kt. As for the duration, there is a positive trend; however, it is not significant and is dominated by the short duration of tropical cyclones during the pre-satellite era. The path is longer (shorter) when the system originates farther (closer) the continent.


North Eastern Pacific, Tropical cyclones, origin, duration, intensity

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DOI: http://dx.doi.org/10.15551/scigeo.v62i1.357


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ISSN: 1223-5334; eISSN: 2284-6379. Published in Romania




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