Resumo

CARNESOLTAS-CALVO, Mario et al. Tornado that affected Havana on January 27, 2019. Rev. Cubana Met. [online]. 2019, vol.25, n.3  Epub 13-Set-2019. ISSN 2664-0880.

On January 27, 2019 an EF4 category tornado, classified according to the improved Fujita Pearson scale, affected Havana city, causing great destruction and the loss of human lives. This article is a synthesis of the report “Intense Tornado that affected the city of Havana on January 27, 2019, Analysis of the causes that generated it” (Carnesoltas, M. et al., 2019).. The sources of information used: maps of the synoptic conditions from that day, satellite images, radar observations and surface measurements from the automatic weather station (AWS) and the conventional Casa Blanca station The instability generated by a deep trough at all levels is described, which generated the formation of an active arc-shaped storm line in front of a cold front (arched echo in the prefrontal line). There are presented the results obtained by the WRF numerical model that reflected the whole process with the CAPE fields, vorticity and reflectivity, among others. One of the significant results is that there was no indication of the anticipated existence of any classic super cell, nor a mini-super cell, but that the characteristics of the tornado resembled in several aspects a vortex of the γ-meso scale within the “Convective Quasi-Linear System ” (which constituted the prefrontal line).

Palavras-chave : Intense Tornado; Quasi Linear Convective System.

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