The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) reported on the 9th that due to the heat wave, the heat index in more than a dozen regions in the Philippines reached 'dangerous' levels that day.
The report shows that 13 regions including Dagupan City in the northern province of Pangasinan, Catarman City in the central province of Northern Samar, and Puerto Princesa City in the southern province of Palawan recorded heat indexes ranging from 42 to 44 degrees Celsius on that day.
PAGASA expects that in the next two days, the heat index in 18 regions in the Philippines will reach 'dangerous' levels.
The heat index refers to the temperature that the human body feels when relative humidity is combined with air temperature. According to the level of danger, PAGASA classifies the heat index into four levels: 'Caution' (27 to 32 degrees Celsius), 'Extreme Caution' (33 to 41 degrees Celsius), 'Danger' (42 to 51 degrees Celsius), and 'Extreme Danger' (52 degrees Celsius and above).
Every year, March to May is usually the hottest and driest period in the Philippines. PAGASA warns that when the heat index reaches 'dangerous' levels, people may experience heat cramps, heat exhaustion, and other heat-related illnesses. The agency advises the public to take sun protection measures when going out, to stay adequately hydrated, and to minimize outdoor activity time to avoid heatstroke.