Heat index in 36 areas in 'danger' category on May 13

Thirty-six areas may experience heat index in the "danger" category on Monday, PAGASA said in its forecast.

These areas may expect the heat index to fall between 42°C to 47°C:

47°C
—Aparri, Cagayan

46°C
—Dagupan City, Pangasinan
—Tuguegarao City, Cagayan
—Roxas City, Capiz
—Guiuan, Eastern Samar

45°C
—Laoag City, Ilocos Norte
—ISU Echague, Isabela
—Iloilo City, Iloilo

44°C
—Bacnotan, La Union
—San Jose, Occidental Mindoro
—Puerto Princesa City, Palawan
—Cuyo, Palawan
—Dumangas, Iloilo

43°C
—NAIA, Pasay City
—MMSU, Batac, Ilocos Norte
—Baler (Radar), Aurora
—Aborlan, Palawan
—Virac (Synop), Catanduanes
—Catarman, Northern Samar
—Catbalogan, Western Samar
—Butuan City, Agusan del Norte

42°C
—Science Garden, Quezon City
—Sinait, Ilocos Sur
—NVSU Bayombong, Nueva Vizcaya
—Iba, Zambales
—Casiguran, Aurora
—Cubi Pt., Subic Bay, Olongapo City
—Ambulong, Tanauan, Batangas
—Daet, Camarines Norte
—Masbate City, Masbate
—CBSUA-Pili, Camarines Sur
—Siquijor, Siquijor
—Tacloban City, Leyte
—Borongan, Eastern Samar
—Dipolog, Zamboanga del Norte
—Zamboanga City, Zamboanga del Sur

On May 12, Aparri, Cagayan registered a heat index of 49°C, while Roxas City in Capiz had it at 47°C, the weather bureau said.

PAGASA classifies heat index of between 42°C to 51°C as under the "danger" level, wherein heat cramps and heat exhaustion are likely, and heat stroke is probable with continued exposure.

The heat index is the measure of the temperature that a person feels in contrast to the actual air temperature.

The Department of Health (DOH) earlier advised the public to keep drinking lots of water to prevent dehydration.

The DOH likewise advised the public to refrain from leaving the house at noontime and to do so only in the morning or in the afternoon.

People should also wear light and loose clothing to keep the body cool.

PAGASA also urged the public to:

• Limit the time spent outdoors.
• Drink plenty of water.
• Avoid tea, coffee, soda and liquor.
• Wear umbrellas, hats, and sleeved clothing outdoors.
• Schedule heavy-duty activities for the beginning or end of the day, when it's cooler.

—KG, GMA Integrated News