Southwest monsoon prevails across Philippines — PAGASA

Marje Pelayo   •   July 27, 2021   •   416

MANILA, Philippines — The southwest monsoon remains the dominant weather system affecting the country today.

As of 5:00 AM on Tuesday (July 27), the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) said monsoon rains will continuously affect the areas of Ilocos Region, Zambales, and Bataan where possible flash floods or landslides are expected due to scattered to widespread moderate to at times heavy rains.

Meanwhile, Metro Manila, Batanes, Babuyan Islands, Abra, Benguet, and Occidental Mindoro will experience cloudy skies with scattered rain showers and thunderstorms which could bring moderate to at times heavy rains and lead to possible flash floods or landslides throughout the day.

The rest of the country will have partly cloudy to cloudy skies with isolated rain showers or thunderstorms with a possibility of severe thunderstorms and could also cause flash floods or landslides.

As of 3:00 AM, two active tropical cyclones are present outside the Philippine area of responsibility (PAR) though they have no direct impact into the country.

Tropical storm In-fa, formerly Typhoon Fabian, was located at 1,175 km north of extreme Northern Luzon while Tropical storm Nepartak was spotted at 2,550 km northeast of extreme Northern Luzon.

Both have maximum sustained winds of 75 km/h and gustiness of up to 125 km/h and 90 km/h, respectively.

Tropical storm In-fa is moving west northwestward at 10 km/h while tropical storm Nepartak is moving west southwestward at 25 km/h.

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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Southwest monsoon affecting Luzon, ITCZ affecting Southern Mindanao

Marje Pelayo   •   September 13, 2021

MANILA, Philippines — Tropical cyclone Chantu (Typhoon Kiko) has exited the Philippine Area of Responsibility (PAR) and is now 790 kilometers North of Itbayat, Batanes.

According to the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), the Southwest Monsoon and the Intertropical Convergence Zone (ITCZ) will bring cloudy skies with scattered rain showers and thunderstorms over the areas of Babuyan Islands, Batanes, Ilocos Region, Abra, Benguet, Zambales, Bataan, MIMAROPA, the Zamboanga Peninsula, and the Bangsamoro.

This may cause flash floods or landslides due to heavy to at times intense rains in the said areas.

Meanwhile, Metro Manila and the rest of the country will have partly cloudy to cloudy skies with isolated rain showers due to the combined effects of the Southwest Monsoon and localized thunderstorms.

All Tropical Cyclone Wind Signals are now lifted.

However, PAGASA said the enhanced Southwest Monsoon will bring occasional gusts reaching strong breezes to near gale strength over the coastal and upland or mountain areas of Northern Luzon, Central Luzon, Metro Manila, CALABARZON, and MIMAROPA in the next 24 hours.

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