An approaching tropical storm intensified into a typhoon expected to bring moderate to heavy rainfall and severe winds over a swathe of the main Luzon island.
The Philippines' disaster agency was on high alert on Saturday.
Typhoon Noru, with sustained winds of up to 120 km per hour (75 mph), was expected to intensify prior to landfall in Aurora or Quezon province on Sunday, the weather bureau said in its latest advisory.
Noru was also expected to affect the capital region and northern provinces that were hit by a cyclone last month, which caused floods and landslides and led to the deaths of three people.
"The highest emergency preparedness and response protocol have been activated" in several regions, including Metro Manila, the agency said in a statement.
Local governments have been advised to undertake pre-emptive evacuations of communities in high-risk areas, it said, as weather forecasters warned of flooding and landslides.
The weather bureau said Noru was moving westward and likely to emerge over the South China Sea by late Sunday or early Monday.
Former Japanese Prime Minister Taro Aso, a senior figure in the country's ruling party, met with Donald Trump on Tuesday, becoming the latest US ally seeking to establish ties with the Republican presidential candidate.
Five migrants, including a child, died in an attempt to cross the English Channel from France to Britain in an overcrowded small boat on Tuesday, hours after Britain passed a bill to deport asylum seekers to Rwanda in a move to deter the dangerous journeys.
Israel bombarded northern Gaza overnight in some of the heaviest shelling in weeks, causing panic amongst residents and flattening neighbourhoods in an area from which the Israeli army had previously down its troops, residents said on Tuesday.
Russia launched a drone attack on Ukraine that injured seven people in the Black Sea port of Odesa, two of them children, and also targeted Kyiv, the capital, Ukraine's military officials said early on Tuesday.
A Delhi court on Tuesday extended the pre-trial detention of Indian opposition leader Arvind Kejriwal until May 7 in a corruption case, the legal news website Live Law reported.