Seventeen areas in the Philippines are forecast to experience a dangerous heat index on May 4, with temperatures feeling as high as 45°C.
The highest predicted heat index of 45°C is expected in Aparri, Tuguegarao, Echague, and Sangley Point in Cavite City.
Areas like Ambulong in Tanauan, Bacnotan, Cubi Pt. in Subic Bay, Hacienda Luisita, Iba, NAIA in Pasay City, and TAU Camiling are predicted to reach 43°C.
Alabat, Dagupan City, Laoag City, MMSU in Batac, Science Garden in Quezon City, and Tayabas City could experience a heat index of 42°C.
PAGASA classifies heat indices from 42°C to 51°C as dangerous, potentially leading to heat exhaustion, heat cramps, and heat stroke.
Residents in these areas are advised to stay hydrated and limit sun exposure during the hottest part of the afternoon.
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