A new empirical TC MPI has been constructed for the Atlantic. It includes not only the positive contribution by SST but also the combined negative effect of translation and vertical shear as the environmental dynamical control of TC intensity and also the effect of the thermodynamic efficiency. The new empirical MPI not only gives more accurate estimation of real TC MPI but also provides an approximate, explicit measure of the environmental dynamical control of TC maximum intensity. However, the empirical MPI differs considerably from basin to basin. This may reflect the difference in the geographical configuration of the basin and the settings of the large-scale climatological pattern that are not considered explicitly in the empirical MPI. Nevertheless, regardless the basins, the inclusion of dynamical control could improve the estimation of the TC MPI since it provides higher percentage of storms reaching their new MPI than that reaching their SST-determined MPI or the MPI modified to include the thermodynamic efficiency. This implies that the environmental dynamical control could be generally negative to TC intensity.