Monsoon rains affect parts of Luzon; new tropical cyclone brews outside PAR

Marje Pelayo   •   July 26, 2021   •   345

MANILA, Philippines – The southwest monsoon is continuously affecting the country.

Based on PAGASA’s 4:00 AM forecast for Monday (July 26), monsoon rains will prevail over Ilocos Region, Zambales, Bataan, and Occidental Mindoro expected to cause possible flash floods or landslides due to scattered to widespread moderate to at times heavy rains.

Metro Manila, Abra, Benguet, Tarlac, Pampanga, Bulacan, Cavite, and Batangas will have cloudy skies with scattered rainshowers and thunderstorms throughout the day.

This could bring moderate to at times heavy rains which could lead to flash floods or landslides as well.

The rest of the country will experienced partly cloudy to cloudy skies with isolated rainshowers or thunderstorms where flash floods or landslides are possible during severe thunderstorms

Meanwhile, a new tropical cyclone was spotted outside the Philippine area of responsibility (PAR).

As of 4:00 AM today, PAGASA located tropical storm Nepartak at 2,980 east northeast of extreme northern Luzon packed with maximum sustained winds of 75 km/h and gustiness of up to 90 km/h moving northward at 20 km/h.

Meanwhile, Typhoon Infa (formerly Fabian) was at 1,070 kilometers north of extreme northern Luzon with maximum sustained winds of 100 km/h and gustiness of up to 140 km/h. It is moving northwestward at 10 km/h.

Both tropical cyclones have no direct impact on any part of the country as of this writing.

Scattered rains to prevail over Metro Manila, other areas due to LPA, ITCZ

Marje Pelayo   •   September 17, 2021

MANILA, Philippines — State weather bureau PAGASA forecasts scattered rains over Metro Manila and other areas due to the combined effects of the Intertropical Convergence Zone (ITCZ) and brewing low pressure area (LPA) south of the country.

Aside from Metro Manila, scattered rains will also prevail over the areas of areas in Central Luzon, CALABARZON, MIMAROPA, Western Visayas, Zamboanga Peninsula, Bangsamoro, SOCCSKSARGEN, Isabela, Quirino, Nueva Vizcaya, Benguet, Ifugao, La Union, Pangasinan, and Camarines Norte.

This, as PAGASA monitors the LPA specifically located at 90 kilometers east southeast of Romblon, Romblon, based on PAGASA’s 4:00AM forecast.

The LPA, embedded in the ITCZ generally affects Southern Luzon, Visayas, and Mindanao.

Meanwhile, the rest of the country will have isolated rains or thunderstorms due to the impact of ITCZ combined with localized thunderstorms.

These weather conditions are likely to cause flash floods or landslides due to moderate to at times heavy rains or severe thunderstorms.

Thus, residents in areas prone to these hazards are advised to take precautionary measures for possible danger.

La Niña likely in the last quarter of 2021 — PAGASA

Marje Pelayo   •   September 14, 2021

MANILA, Philippines — The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said that La Niña may occur in the coming months.

Based on the agency’s La Niña Alert issued on Tuesday (September 14), there is a 70% to 80% chance that La Niña will form in the last quarter this year.

This phenomenon may persist or prevail until the first quarter of 2022, the agency said.

Also, PAGASA’s rainfall forecast suggests that above-normal rainfall conditions in many areas may be experienced in the next several months.

This can be attributed to the expected stronger easterlies, enhanced Northeast monsoon and tropical cyclone occurrences, according to the advisory.

“The eastern sections of the country which normally receive more rainfall during the last quarter of the year could further increase the likelihood of more adverse impacts such as floods and landslides over highly vulnerable areas,” PAGASA Administrator Vic Malano said in the advisory.

“With this scenario, all concerned agencies are advised to take precautionary measures to mitigate the potential adverse impacts of this looming La Niña,” he added.

La Niña phenomenon refers to the unusually cool ocean surface temperatures in the central and eastern equatorial Pacific.

Residents in parts of Bulacan warned amid Ipo Dam spilling ops

Marje Pelayo   •   September 14, 2021

MANILA, Philippines — The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) Hydrometeorology Division advises residents in some parts of Bulacan to take caution amid the continuous spilling operations at Ipo Dam.

As of 8:00 a.m. Tuesday (September 14), the water level of Ipo Dam is 100.72 meters.

The dam management continues to conduct spilling operations with one gate open and thus, PAGASA advised residents in low-lying areas and those living near the riverbanks of Angat River from Norzagaray, Angat, San Rafael, Bustos, Baliuag, Pulilan, Plaridel, Calumpit, and Hagonoy to be alert for possible increase in water level.

PAGASA assured that it will continue to monitor the hydrological condition of Ipo Dam along with the Dam management for updates.

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