Influence of the tropical cyclone Omar on the weather in Europe

A case of the Atlantic tropical cyclone influence on the weather of Europe is considered. It is demonstrated on the basis of computations of the numerical mesoscale ETA model that one of the reasons of the positive air temperature anomaly in fall 2008 was the tropical cyclone Omar. The detailed analysis was carried out of the computation results of the movement and evolution of the tropical cyclone Omar and of the atmospheric structures surrounding it. The energy characteristics, the explicit and latent heat fluxes, and the precipitation in the tropical cyclone were computed. The computations revealed that starting since the certain moment, the tropical storm Omar actively interacted with the polar front which shifted to the low latitudes and with the extratropical disturbance of synoptic scale which originated on this front. It was obtained that this interaction resulted in the transfer of the huge tropical cyclone energy to the extratropical pole-front cyclone and in the intensification of the latter one. It is demonstrated that the air which circulated in the tropical cyclone and possessed high the thermohygrometric characteristics entered the warm sector of extratropical cyclone and was carried out to Europe.