I'm interested in monsoons hitting Bombay and Madras, India, and storms that hit Bangkok, Manila and Tokyo. Please help me, thank you. The prevailing direction of storms in Asia depends on location and time of year. Storms over northern Asia tend to move from west to east year round. During winter, storms generally move from west to east over most of Asia, except over far southern Asia where they generally move from east to west year round.
Many storms move from southwest to northeast during winter, especially along the east coast of Asia.
This is very similar to the storms that slide up the east coast of North America during winter. During summer and fall, typhoons and tropical storms tend to move from east to west near the southeastern coast of Asia from southern Japan south through the Philippines and southeastern Asia. The summer is also the wet season for India as warm moist air streams northward from the Indian Ocean into India. As for the cities you specifically mentioned in your question, Bombay and Madras usually see storms come from the south or southeast during summer. Winter is the dry season for India and very little precipitation falls in these cites.