Several areas in the Philippines recorded heat indices of up to 43 degrees Celsius on Thursday, Nov. 5, according to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA).

Based on PAGASA's heat index forecast, Coron, Palawan, and Dipolog, Zamboanga del Norte, recorded the highest heat index at 43°C.

Other areas also experienced dangerously high heat levels, including Iloilo City and Dumangas, Iloilo, and Butuan City, Agusan del Norte, which each recorded 42°C.

PAGASA classifies heat indices ranging from 42°C to 51°C as under the danger category.

At this level, prolonged exposure to heat may cause heat cramps and heat exhaustion, while continued physical activity could lead to heat stroke.

The public is advised to limit outdoor activities, stay hydrated, wear lightweight and light-colored clothing, and avoid prolonged exposure to direct sunlight.