Pagasa: Most of PH to experience rains due to 3 weather systems

The Philippine Atmospheric, Geophysical and Astronomical Services Administration says rains will occur in most parts of the country on Friday, January 12, 2024, due to the northeast monsoon, shear line, and easterlies. (Photo from Pagasa)

MANILA, Philippines — Rains are forecast to occur in many parts of the country this Friday due to three weather systems, the Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) said.

In a morning advisory, the state weather bureau said the northeast monsoon, locally known as amihan, will bring overcast skies with light rains to some parts of northern Luzon.

“Sa ating mga kababayan naman po sa may Cagayan Valley, Kalinga, Apayao, at Aurora, magdala po ng payong kung lalabas ng bahay ngayong araw dahil pa rin sa epekto ng northeast monsoon,” said Pagasa weather expert Benison Estareja.

(To our compatriots in Cagayan Valley, Kalinga, Apayao, and Aurora, bring an umbrella if you leave your house today due to the effects of the northeast monsoon.)

Pagasa also said the northeast monsoon will cause partly cloudy to cloudy skies with isolated light rains over Metro Manila and the rest of Luzon.

Such condition, however, may have no significant impact over the affected areas, it added.

READ: Pagasa: Shear line to bring cloudy skies, rains to Southern Luzon

Meanwhile, the Bicol Region, Eastern Visayas, and Quezon were forecasted to experience cloudy skies with scattered rain showers and thunderstorms because of the shear line.

On the other hand, the rest of the country may expect slightly cloudy skies with isolated rain showers or thunderstorms due to easterlies and localized thunderstorms.

The shear line is the convergence of cool and warm winds, while easterlies are warm winds blowing from the Pacific Ocean.

Pagasa warned of possible flash floods or landslides during severe thunderstorms in low-lying areas affected by the shear line and easterlies.

READ: Pagasa: Light rains likely in Luzon, fair weather for rest of PH

On the country’s seaboards, the state weather bureau raised a gale warning alert over the northern and eastern coasts of Catanduanes, the northern and eastern coasts of northern Samar, and the eastern coast of eastern Samar because of the northeast monsoon.

“Hanggang 4.5 meters po ‘yung taas ng mga alon doon, delikado sa mga maliliit na sasakyang pandagat,” Estareja said.

(The waves there may reach up to 4.5 meters high, which is dangerous for small vessels.)

As of Friday, Pagasa said it is not monitoring any low-pressure area that may enter the Philippine area of responsibility within the next three days.