HEAT INDEX WATCH: Scorching heat persists in Cavite, Quezon amid rains

LUCENA CITY, Quezon, On Saturday, July 18, despite rainfall linked to the southwest monsoon, two regions, Imus City in Cavite and Atimonan in Quezon, remained under extreme heat conditions. The local disaster offices recorded heat indexes exceeding 39°C, prompting warnings about health risks associated with prolonged exposure to such temperatures. In Imus City, the city's Disaster Risk Reduction and Management Office (DRRMO) noted a heat index of 43.7°C at 12:00 p.m. This reading placed the area within the “Danger” category according to guidelines issued by the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa). The classification indicates a very high risk of heat-related illnesses, including heat cramps, heat exhaustion, and potentially fatal heat stroke. At the same time, the DRRMO of Atimonan, Quezon, reported a heat index of 39°C at 12:12 p.m. Based on readings from the local government’s automated weather station, this value fell into the “Extreme Caution” range, though still significantly above the threshold considered safe for extended outdoor activity. Pagasa explained that the heat index combines air temperature with relative humidity to determine how hot it feels to the human body. It categorized the index into four levels: “Caution” (27°C–32°C), “Extreme Caution” (33°C–41°C), “Danger” (42°C–51°C), and “Extreme Danger” (52°C and above). Heat index values tend to rise between midday and late afternoon, making these times particularly hazardous. Health officials emphasized that heat stroke, a severe condition that can cause organ failure, requires immediate medical attention. Symptoms include confusion, rapid pulse, and loss of consciousness. Those who work outdoors or engage in physical activities are especially vulnerable. Residents were urged to take precautions such as staying hydrated by consuming ample water, wearing loose and lightweight clothing, and avoiding unnecessary exposure to direct sunlight during peak heat hours. Public spaces offering shade and cooling options were recommended as safer alternatives for outdoor activities. In its early morning forecast, Pagasa indicated that the southwest monsoon would continue to bring rain to the western part of Northern Luzon, including areas like Quezon and Cavite. Localized thunderstorms were also anticipated to impact other regions, including Metro Manila, although these did not alleviate the intense heat in the affected localities. The ongoing weather pattern highlights the challenge of balancing relief from the monsoon with the persistent threat of extreme heat. While rainfall offers temporary respite, it does not eliminate the need for vigilance against heat-related dangers. Authorities remain focused on monitoring conditions and issuing timely advisories to protect public health.