Tropical Storm Pulasan made landfall near Shanghai on Thursday, halting trains, grounding ferries and bringing the risk of floods and landslides three days after the Chinese megacity was pounded by its strongest typhoon in 75 years.

Weather officials say they have observed a severe tropical storm over waters far south of Japan, warning that it may develop and approach the southern Japanese prefecture of Okinawa.

Typhoon Pulasan made landfall Thursday night in the city's Fengxian district, with a maximum wind speed of 83 kph, according to the state-run Xinhua news agency. The storm "is forecast to gradually weaken as it moves inland,

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