The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) warned that 18 areas, including Pasay City in Metro Manila, could experience a heat index reaching the “danger” threshold of 42 degrees Celsius (°C) or higher on Wednesday, April 16.
Based on its forecast, PAGASA said Los Baños, Laguna may record the highest heat index of the day at 50°C, after also registering the highest heat index on April 15.
Other areas that could experience heat indices between 42°C and 47°C include Pasay City, Metro Manila (42°C); Tuguegarao City, Cagayan (42°C); Iba, Zambales (42°C); Clark, Pampanga (42°C); Coron, Palawan (42°C); San Jose, Occidental Mindoro (42°C); Pili, Camarines Sur (42°C); Roxas City, Capiz (42°C); Iloilo City, Iloilo (42°C); Dumangas, Iloilo (42°C); Echague, Isabela (43°C); Baler, Aurora (43°C); Catarman, Northern Samar (43°C); Tarlac City, Tarlac (44°C); Cavite City, Cavite (44°C); Tanauan, Batangas (44°C); and San Ildefonso, Bulacan (47°C).
Heat index values between 42°C and 51°C are categorized by PAGASA as “dangerous.”
At this level, the risk of heat cramps and heat exhaustion increases significantly and prolonged exposure may lead to heatstroke, especially for vulnerable groups.
