In this study, the variation of storm tracks’ intensity in different NAO phases is analyzed from the energetic point of view by the JRA-55 reanalysis dataset. To achieve this goal, the composite maps of the most important terms of the time tendency equation of the eddy kinetic energy (EKE) for the winter months (December to February) were computed for the critical positive and negative months of the NAO in two periods, 1959–1987 and 1989-2017. Furthermore, the trend in the maximum EKE intensity in the Atlantic region is investigated for critical and non-critical months. Results show that there is a downward trend in the intensity of the Atlantic storm track for critical positive months, but the trend is upward for critical negative months. On the other hand, in the periods with the highest occurrence of critical months, the 1989-2017 period for positive months and the 1959-1987 period for negative months, downstream areas of the Mediterranean storm track are affected significantly by the eddy kinetic energy.