At least 39 areas across the Philippines are projected to experience heat index levels within the “danger” zone this Sunday, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).
The weather bureau reported that the heat index in these locations could hit between 42°C and 45°C. These extreme levels significantly increase the risk of heat-related medical emergencies, such as heat cramps, exhaustion, and potentially fatal heat stroke.
PAGASA defines the heat index as a measure of human discomfort, calculated by combining actual air temperature with relative humidity.
Under its monitoring system, any reading between 42°C and 51°C falls under the “danger” bracket.
The highest temperature discomfort is expected to reach 45°C in four specific localities:
- Tuba, Benguet
- Casiguran, Aurora
- Central Bicol State University of Agriculture (CBSUA) in Pili, Camarines Sur
- Visayas State University (VSU) in Baybay City, Leyte
Meanwhile, a scorching 44°C heat index is anticipated in Laoag City, Ilocos Norte; Dagupan City, Pangasinan; Tuguegarao City, Cagayan; Iba, Zambales; Tayabas City and Alabat, Quezon; and Virac, Catanduanes.
A heat index of 43°C is forecast for another large cluster of areas, including Sinait, Ilocos Sur; Bacnotan, La Union; Basco, Batanes; Aparri, Cagayan; Muñoz, Nueva Ecija; San Ildefonso, Bulacan; Camiling and Tarlac City, Tarlac; Infanta, Quezon; Masbate City; Juban, Sorsogon; Surigao City; Hinatuan, Surigao del Sur; and Butuan City.
In Metro Manila, the heat index is predicted to climb to 43°C near the Ninoy Aquino International Airport in Pasay City, while the Science Garden station in Quezon City could record 42°C.
Other areas expected to hit 42°C include Batac, Ilocos Norte; Calayan, Cagayan; Clark Airport, Pampanga; Cubi Point in Subic Bay; Tanauan, Batangas; Mulanay, Quezon; Los Baños, Laguna; Calapan City, Oriental Mindoro; Daet, Camarines Norte; Legazpi City, Albay; Mactan International Airport, Cebu; and Catbalogan City, Samar.
To counter the severe conditions, the Department of Health (DOH) has released urgent safety reminders for the public.
The health agency advised everyone to consume eight to 12 glasses of water daily, skip alcoholic or caffeinated drinks, limit outdoor exposure during peak sun hours, wear light clothes, and stay in shaded or air-conditioned areas as much as possible.