Tropical Depression Kristine has intensified into a tropical storm on Tuesday, while authorities said it may strengthen further before making landfall in the Philippines.
The state weather agency said Kristine may reach the severe tropical storm category by Wednesday and make landfall over Isabela on Wednesday evening.
It also said it may further develop into a typhoon by Friday as it emerges over the West Philippine Sea.
The center of Tropical Storm Kristine was last located 390 km east of Virac, Catanduanes, packing maximum sustained winds of 65 kph and gusts of up to 80 kph. It was moving westward at 15 kph.
The Regional Disaster Risk Reduction and Management Council in Bicol placed its emergency operations center on red alert to immediately respond to calls for help.
The Civil Aviation Authority of the Philippines (Caap) said Samar Island’s Calbayog Airport in Calbayog City and Catarman Airport in Northern Samar grounded all scheduled flights amid potential risks due to the weather disturbance.
Several areas of Luzon, Visayas, and Mindanao have been put under Tropical Cyclone Wind Signal No. 1.
Israel struck a key Iranian nuclear site on Thursday and Iranian missiles hit an Israeli hospital as the air war between the two countries entered the seventh day.
Iran and Israel traded further air attacks on Thursday as President Donald Trump kept the world guessing about whether the United States would join Israel's bombardment of Iranian nuclear facilities.
Israeli gunfire and strikes killed at least 140 people across Gaza in the past 24 hours, local health officials said, as some Palestinians in the Strip said their plight was being forgotten as attention has shifted to the air war between Israel and Iran.
In a first, US President Donald Trump has admitted that "two very smart" leaders of India and Pakistan after they "decided" to end the conflict, without mentioning the US role in the mediation talks.
Air India said on Wednesday it will cut international operations on its widebody aircraft by 15 per cent for the next few weeks, citing ongoing safety inspections and operational disruptions following last week's deadly crash of one of its Boeing 787 Dreamliners.