PHILIPPINE Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) forecasts that Davao City may experience a high heat index from March 13 to March 16, 2023.

In the latest advisory issued by Pagasa on March 11, 2023, on their website, Davao City's heat index is ranging from 36 degrees celsius (°C) to 56°C.

On March 12, Pagasa said that the heat index of the city is 36°C, which is already classified as “extreme caution.”

When the heat index is identified as “extreme caution” (33°C to 41°C), Pagasa said people can experience heat cramps and heat exhaustion. The agency added that continuing activity could lead to heat stroke during this time.

On March 13, the agency said the forecasted maximum heat index will be 44°C, which is classified to be “danger.”

Pagasa said when the heat index is classified under the danger category (42°C to 51°C), individuals may experience heat cramps and heat exhaustion as well, and a possibility of “heat stroke is probable with continued exposure.”

On March 14, the forecasted maximum heat index is 47°C and on March 15 is 44°C.

On March 16, the heat index is forecasted to be at 56°C, which is under the “extreme danger” category.

When the heat index is 52°C and above, Pagasa said there is a possibility of a heat stroke.

Meanwhile, Pagasa reported that on March 1 to March 11, the highest heat index in the Philippines was recorded in Davao City at 41°C on March 8 at 4:00 p.m..

Pagasa said people may prevent possible heat-related illnesses if people will limit the time spent outdoors; drink plenty of water, avoid tea, coffee, soda, and liquor; wear umbrellas, hats, and sleeved clothing outdoors; and schedule heavy-duty activities for the beginning or end of the day when it is cooler.

Pagasa said if people encounter emergency cases or if a person collapses, they may move the person to a shady spot and lie him or her down with legs elevated. If the person is conscious, have them sip cool water; remove clothing, and apply cool water to the skin and provide ventilation; apply ice packs to the armpits, wrists, ankles, and groins; and bring them to a hospital immediately. KSD