A super typhoon swept towards the northern Philippines on Tuesday, the country's weather agency said, triggering evacuation orders for coastal communities expected to bear the brunt of the powerful storm.

Super Typhoon Doksuri was packing maximum sustained winds of 185 kilometres an hour as it headed towards a group of three lightly populated islands off the northern tip of the main island of Luzon, the agency said.

The storm, which is called "Egay" in the Philippines, was expected to make landfall or pass very close to the Babuyan islands or northeastern Cagayan province by Wednesday afternoon, the agency said.

On Tuesday, the mainland’s National Meteorological Center issued a yellow alert for Doksuri, saying it is expected to bring gales and heavy rain to the nation's southern coastal regions.

The storm is expected to enter the northeast part of the South China Sea on Thursday and then move toward the coastal areas of Fujian and Guangdong, the centre said.

In the Philippines, the storm was expected to dump more than 200 millimetres of rain on the islands and the northern portion of Cagayan, Apayao and Ilocos Norte provinces on Tuesday.

Three of the five Babuyan Islands are inhabited, with a population of around 20,000 people.

Disaster official Charles Castillejos said coastal communities on the islands had been ordered to leave their homes, while fishermen had been told to get their boats out of the water.

Storm surges of more than three metres could hit some low-lying areas, the country’s weather agency warned.

Heavy rain was expected across the mountainous northern provinces in the coming days, with landslides "highly likely", it added. (AFP/Xinhua)