Devotees hear First Friday mass at Quiapo Church in Manila on March 7, 2025, amid high temperatures in various parts of the country. Jonathan Cellona, ABS-CBN News/File

MANILA — PAGASA raised the “danger” heat index alert in 10 areas on Maundy Thursday, when droves of Catholics are expected to visit churches for Semana Santa.

A measure of temperature and humidity, the heat index could reach the danger level of 42 to 51 degrees Celsius in the following areas, the state weather bureau said.

• Dagupan City, Pangasinan
• Tuguegarao City, Cagayan 
• Echague, Isabela 
• Camiling, Tarlac 
• Cavite City
• Pili, Camarines Sur 
• Iloilo City
• Dumangas, Iloilo
• Catarman, Northern Samar 
• Butuan City, Agusan Del Norte 

Under the “danger” level, prolonged exposure to sunlight could lead to heat cramps, heat exhaustion or heatstroke. 

Heat exhaustion or heatstroke: what to do in an emergency

Experts have reminded the public to stay hydrated, stay indoors or seek shade, and wear light clothing during hot weather. 

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