The storm tracks begin in the westernmost parts of Atlantic and Pacific, where the large temperature contrasts between land and sea cause cyclones to form, particularly in winter. Surface friction cause these cyclones to quickly fill up and decay as soon as they reach land at the eastern end of the basins, accounting for the easternmost edges of the storm tracks.
Another example of a storm track is the circumpolar storm track in the Antarctic, however land-sea contrasts play no role in its formation.
Impacts of ENSO and Indian Ocean Dipole Events on the Southern Hemisphere Storm-Track Activity during Austral Winter
Jul 01, 2007; ABSTRACT Impacts of the ENSO and Indian Ocean dipole (IOD) phenomena on winter storm-track activity over the Southern Hemisphere...