The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said 18 areas may still experience a heat index that is considered “dangerous” on Wednesday, May 8.

PAGASA said a heat index between 42 degrees Celsius (°C) and 51°C indicates “danger,” as "heat cramps and heat exhaustion are likely," and "heat stroke is probable with continued activity."

Virac, Catanduanes; Roxas City, Capiz; and Guiuan, Eastern Samar may experience heat indices as high as 45°C.

Aborlan and Cuyo, both in Palawan, may have a heat index of 44°C, while Dagupan City, Pangasinan; Bacnotan, La Union; Alabat, Quezon; San Jose, Occidental Mindoro; Masbate City, Masbate; Iloilo City, Iloilo; Dumangas, Iloilo; and Zamboanga City, Zamboanga del Sur, may have a heat index of 43°C.

Meanwhile, a 42°C heat index may be recorded in Central Luzon State University, Muñoz, Nueva Ecija; Puerto Princesa City, Palawan; Legazpi City, Albay; Central Bicol State University of Agriculture, Pili, Camarines Sur; and Cotabato City, Maguindanao.

Weather update

PAGASA said the warm winds from the Pacific Ocean, also known as “easterlies,” will be the dominant weather system in the country for the next 24 hours.

Weather specialist Daniel James Villamil said no weather disturbances are expected to affect the country in the next three to five days.

However, he said PAGASA is still monitoring a cloud cluster outside the Philippine area of responsibility (PAR) or “near the southeastern portion of PAR,” which may develop into a low pressure area (LPA) “later this week.”

The possibility of the brewing LPA entering the PAR "early next week" is also not ruled out, Villamil said.