MANILA, Philippines — An estimated peak heat index of 54ºC was recorded in Guiuan, Pangasinan on Monday, said the Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa).
The heat index is the “measure of the contribution that high humidity makes with abnormally high temperatures in reducing the body’s ability to cool itself.”
Once a heat index reaches over 52ºC, Pagasa automatically tags it under the “extreme danger” classification as heat stroke at this point is already imminent.
READ: 46 areas may experience ‘dangerous’ heat index on June 2
Meanwhile, based on Pagasa’s latest computed heat index, 41 other areas also registered heat indices above 42ºC.
This includes Metro Manila, specifically, Ninoy Aquino International Airport (Naia) in Pasay City, which logged a peak index of 46ºC.
At this level, once it ranges from 42ºC to 51ºC, Pagasa tags it as a “danger category” due to the increased risk of heat-related illnesses such as heat cramps, heat exhaustion, and even heat stroke.
Below is the list of areas forecast to record a heat index of or above 42ºC in descending order:
- Guiuan, Pangasinan – 54ºC
- Infanta, Quezon – 48ºC
- Baler (Radar), Aurora – 47ºC
- Naia Pasay City, Metro Manila – 46ºC
- Maasin, Southern Leyte – 46ºC
- Masbate City, Masbate – 46ºC
- Sangley Point, Cavite – 45ºC
- Alabat, Quezon – 45ºC
- Cuyo, Palawan – 45ºC
- Virac (Synop), Catanduanes – 45ºC
- Dumaguete City, Negros Oriental – 45ºC
- Catarman, Northern Samar – 45ºC
- Dagupan City, Pangasinan – 44ºC
- Tuguegarao City, Cagayan – 44ºC
- Iba, Zambales – 44ºC
- Casiguran, Aurora – 44ºC
- Calapan, Oriental Mindoro – 44ºC
- San Jose, Occidental Mindoro – 44ºC
- Ambulong, Tanauan Batangas – 44ºC
- Juban, Sorsogon – 44ºC
- Roxas City, Capiz – 44ºC
- Iloilo City, Iloilo – 44ºC
- Dumangas, Iloilo – 44ºC
- Tacloban City, Leyte – 44ºC
- Dipolog, Zamboanga del Norte – 44ºC
- Science Garden Quezon City – 43ºC
- Laoag City, Ilocos Norte – 43ºC
- Aparri, Cagayan – 43ºC
- NVSU Bayombong, Nueva Vizcaya – 43ºC
- ISU Echague, Isabela – 43ºC
- Puerto Princesa City, Palawan – 43ºC
- Mambusao, Capiz – 43ºC
- Catbalogan, Samar – 43ºC
- Romblon, Romblon – 43ºC
- MMSU Batac, Ilocos Norte – 42ºC
- Bacnotan, La Union – 42ºC
- Clark Airport, Pampanga – 42ºC
- Daet, Camarines Norte – 42ºC
- Legazpi City, Albay – 42ºC
- Laguindingan Airport, Misamis Oriental – 42ºC
- Surigao City, Surigao del Norte – 42ºC
- Butuan City, Agusan del Norte – 42ºC