The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) on Saturday, May 11, said the shear line would no longer have any effect by evening or on May 12.
"Patuloy pa rin ang epekto ng shearline at easterlies sa ating bansa. Itong shearline ay inaasahan natin mamayang gabi o bukas ay hindi na ito makakaapekto saan ma'ng bahagi ng ating bansa (The effects of the shearline and easterlies continue to persist in our country. We expect that this shear line will no longer affect any part of our country tonight or tomorrow)," PAGASA Weather Specialist Aldczar Aurelio said in PAGASA's latest update.
Meanwhile, due to the shear line, the provinces of Isabela and Aurora may experience cloudy skies with scattered rain showers and thunderstorms.
"And for our weather condition today, due to the shear line, we will experience mostly cloudy skies with scattered rain showers and thunderstorms in the provinces of Isabela and Aurora," Aurelio said in a mix of English and Filipino.
PAGASA then noted that the remaining parts of the country will continue to experience fair and clear weather conditions.
"But there is still a chance, or we are still expecting isolated rain showers due to the thunderstorm in the afternoon or evening," he added.
No LPA monitored
The state weather bureau reported there was no low pressure area (LPA) within the Philippine Area of Responsibility (PAR).
"Meanwhile, we don't have any low-pressure area or typhoon to monitor within our area of responsibility," Aurelio said.
It also noted that there is no LPA in parts of the Pacific Ocean.
27 areas may have a ‘dangerous’ heat index
Furthermore, PAGASA said 27 areas in the country may have “dangerous” heat indices on Saturday.
Based on its five-day computed and two-day forecast heat index, 46 Degree Celsius (°C) may be felt in Virac (Synop), Catanduanes, followed by a heat index of 45°C in Dagupan City, Pangasinan.
A heat index of 44°C may also be experienced in Laoag City, Ilocos Norte; Aparri, Cagayan; Puerto Princesa City, Palawan; and Roxas City, Capiz.
PAGASA explained that a "dangerous" heat index of 42–51°C increases the risk of heat stroke.
READ:
https://mb.com.ph/2024/3/18/heat-index-what-is-it-and-how-does-it-differ-from-actual-temperature
On April 28, meanwhile, Iba, Zambales recorded the highest heat index in the country since 2024 began.
READ:
In areas with heat indices of 52°C and above is labeled as “extreme danger,” as the PAGASA noted that “heat stroke is imminent.”