PAGASA warns of heat index up to 53°C in 41 areas through Tuesday

PAGASA has issued a warning that dangerous heat index levels ranging from 42°C to 51°C will persist across multiple areas of the country through Tuesday, with conditions particularly severe in parts of Metro Manila and other regions.

The weather bureau forecasts that at least 41 areas may experience danger level heat indices on Tuesday, including Bayombong, Nueva Vizcaya (42°C), Dagupan City, Pangasinan (46°C), Aparri, Cagayan (45°C), and several other locations.

Prolonged exposure to a heat index between 42°C and 51°C can cause heat cramps and exhaustion, while temperatures above 52°C can lead to immediate heatstroke. The highest heat index recorded since last year was 53°C in Iba, Zambales on Sunday.

The Department of Health (DOH) advises limiting time spent outdoors, drinking plenty of water, and using umbrellas, hats, and sleeved clothing when outside to prevent heat-related illnesses.

Heat stroke is also possible with continued exposure, and the DOH has provided first aid measures for those experiencing symptoms: move to a shaded area, remove outer clothing, apply cold compresses or ice packs, provide cool water if conscious, and seek immediate medical attention.