The Calabarzon region of the Philippines is set to experience dangerously high heat indices on Saturday, May 23, as reported by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa). Areas such as Cavite City may see a heat index soaring to 44°C, with the city having recorded 48°C just the day before. Other affected areas include Tanauan City in Batangas, expected to hit 43°C, and Alabat in Quezon, which may also reach 44°C. Local officials in Talisay and Calaca City have echoed these warnings, advising residents to prepare for similar conditions. The heat index, which combines air temperature and humidity to reflect how hot it feels, is categorized as dangerous when it ranges from 42°C to 51°C, posing risks of heat cramps, exhaustion, and even heat stroke. The Department of Health has urged residents to stay hydrated and limit exposure to the sun to mitigate health risks associated with the extreme heat.