More than 2,000 passengers were stuck in ports in Manila, the central Philippines and Mindanao island in the south after the coastguard stopped sea travel ahead of the category 5 storm, which could hit areas devastated by typhoon Haiyan last year.

"We've warned them early to move away from shore, not just anchor their ships, because previously they just anchored their ships...The waves lifted them and washed them ashore," Armand Balilo, a coastguard spokesman, said in a radio interview.

Hagupit was churning across the Pacific with the eye of the storm around 500 km (310 miles) southeast of the Philippines, the local weather bureau said, packing winds of up to 215 kph (130 mph) near the center with gusts of up to 250 kph.

It was expected to slam into Eastern Samar province in the central Philippines on Saturday, bringing torrential rain and 3- to 4-metre high storm surges, the weather bureau said. The storm was moving towards land at around 15 kph (10 mph).

On Thursday, the government said it was considering declaring a state of national calamity to freeze prices of basic goods, and President Benigno Aquino ordered the trade department to send more food supplies to provinces at risk amid reports of panic-buying of basic supplies.

The storm could take the same track as Haiyan, which left more than 7,000 dead or missing and more than 4 million homeless or with damaged houses when it battered the central Philippines in November 2013, the weather bureau added.

While the local weather bureau and the Japan Meteorological Agency predicted Hagupit - Filipino for lash - making a direct hit on the central Philippines, the forecasting website Tropical Storm Risk and the Joint Typhoon Warning Center of the U.S. navy showed the storm veering north, closer to the capital Manila.

The Japan Meteorological Agency classified Hagupit as a "violent" storm while the U.S. navy called it a super typhoon.

Tropical Storm Risks was predicting on Friday that the typhoon would have weakened to a category 4 - still a powerful storm - when it made landfall.

Eastern Samar and the island of Leyte were worst-hit by 250 kph winds and storm surges brought by Haiyan, one of the strongest storms ever to make landfall. About 25,000 people still live in tents, shelters and bunkhouses more than a year after Haiyan.