Verification of Seasonal Forecast of Cyclonic Activity in the North Atlantic for the year 2016

Maritza Ballester-Pérez, Cecilia González-Pedroso, Ramón Pérez-Suárez, Nahalí Valderá-Figueredo

Abstract

This paper presents the verification of the seasonal forecast of cyclonic activity in the Atlantic Ocean for the year 2016, based on a statistical method that takes into account the fundamental oceanic and atmospheric conditions that regulate the cyclonic activity in the Atlantic Ocean, the tropical cyclones climatology and their variability among other aspects. For this purpose, the normalized deviations of the predicted and real values were compared, taking into account the averages for the period 1965 - 2015. The basic considerations for the predicted activity were fulfilled satisfactorily when anticipating an active cyclonic season and resulting in the same way. The prognosis for the impact on Cuba by hurricanes was also satisfactory. The principal factors that favored the behaviour higher than normal of cyclonic activity in the Atlantic basin during the year 2016 were the existence of favorable conditions on the surface and the lower troposphere, the conditions imposed by a neutral ENSO event with a slight cooling of the waters in the central-eastern equatorial Pacific, below normal values of the atmospheric pressure at sea level in the tropical zone and the anomalous positive behavior of the sea surface temperature in the tropical Atlantic and the Caribbean Sea.

Keywords

cyclone activity; verification; seasonal forecast; tropical cyclones; hurricanes

References

Ballester, M.; González, C, & Pérez, R. 2010. “Variabilidad de la actividad ciclónica en la región del Atlántico Norte y su pronóstico”. Proyecto 0803, Editorial. Academia, La Habana, 170 p.

___________ 2016a. “Pronóstico de la temporada ciclónica 2016 para el Atlántico Norte”. Instituto de Meteorología, 1 p.

___________ 2016b. “Pronóstico de la temporada ciclónica 2016 para el Atlántico Norte (Actualización)”. Instituto de Meteorología, 1 p.

Beven II, J.L. 2017. “National Hurricane Center Annual Summary, 2016 Atlantic Hurricane Season”, 15 p.

CPC 2016. ENSO Evolution, Status and Prediction. Climate Prediction Center http://www.cpc.noaa.gov [Consultado el 27 de octubre de 2019].

CENPRO 2016. Resúmenes de temporada ciclónica. Centro de Pronósticos del Instituto de Meteorología de Cuba. Disponible en http://www.insmet.cu [Consultado el 20 de noviembre de 2019].

IRI 2016. ENSO Forecast. International Research Institute for Climate and Society http://www.iri.edu.gov.

NCEP/NCAR 2016. The NCEP/NCAR Reanalysis Project. National Centers for Environmental Prediction/National Center for Atmospheric Research http://www.ncep.noaa.gov [Consultado el 10 de julio de 2019].

NHC 2016. Tropical Cyclone Advisories. National Hurricane Center, Miami http://www.nhc.noaa.gov [Consultado el 20 de octubre de 2019].

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