Pagasa warns 23 areas to experience dangerous heat index

The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (Pagasa) warns that 23 areas in the country will experience a "dangerous" heat index level on Thursday, May 15, 2025.

Six of these areas are forecast to reach a heat index of 43°C.

The dangerous category for heat index ranges from 42°C to 51°C, indicating a significant risk of heat-related illnesses.

Cuyo, Palawan recorded the highest heat index at 45°C on the previous day, Wednesday.

Specific cities and provinces expected to reach 43°C include Dagupan City in Pangasinan, Bacnotan in La Union, Aparri in Cagayan, Iba in Zambales, Tayabas City in Quezon, and San Jose in Occidental Mindoro.

Another seventeen areas will experience a heat index of 42°C, spanning various locations in Northern Samar, Iloilo, Capiz, Camarines Sur, Masbate, Palawan, Laguna, Batangas, Cavite, Aurora, Isabela, and Ilocos Norte.

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