'Habagat' weakens, fair weather seen in next few days
Published Jul 25, 2019 01:49 pm
By Ellalyn de Vera Ruiz
The southwest monsoon or “habagat” will likely to remain weak until the weekend, according to the state weather bureau.
(PAGASA/ MANILA BULLETIN)
A relatively weak southwest monsoon will prevail over Southern Luzon and Western Visayas this Friday, and isolated rain showers and thunderstorms will be confined in these areas, said Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) weather specialist Ariel Rojas.
He added that Metro Manila and the rest of the country will experience partly cloudy to cloudy skies with isolated rain showers from localized thunderstorms over the weekend.
Generally fair weather condition will prevail in the next few days but short duration heavy rains may persist especially in the afternoon or evening in most parts of the country, Rojas said.
However, he warned that sudden rains due to severe thunderstorm activity may cause flash floods or landslides in low-lying or mountainous areas.
As the southwest monsoon entered a period of lull almost a week ago, the Angat Dam in Bulacan has been adversely affected by the insufficiency of monsoon rains over the watershed area in Norzagaray.
As of Thursday morning, the water level at Angat Dam was 161.28 meters, down slightly by 8 centimeters from last Thursday’s 161.36 meters.
Its current level is still low, although it is a little over the 160-meter critical level.
Angat Dam needs at least 336 millimeters of one-time rainfall to recover to its minimum operating level of 180 meters.
To reach its 210-meter normal high water level, about 1,267 mm of rainfall, equivalent to four to five cyclones, will be needed.
Authorities however are hopeful that Angat Dam may fully recover by next month as the August-September period is the peak of southwest monsoon season and tropical cyclone activity.
Based on historical record, about four to eight cyclones usually form during August and September. The track of tropical cyclones during this period is mostly land-falling or crossing the landmass of Luzon, but still, some cyclones are recurving or do not directly affect the country. (Ellalyn De Vera-Ruiz)
(PAGASA/ MANILA BULLETIN)
A relatively weak southwest monsoon will prevail over Southern Luzon and Western Visayas this Friday, and isolated rain showers and thunderstorms will be confined in these areas, said Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) weather specialist Ariel Rojas.
He added that Metro Manila and the rest of the country will experience partly cloudy to cloudy skies with isolated rain showers from localized thunderstorms over the weekend.
Generally fair weather condition will prevail in the next few days but short duration heavy rains may persist especially in the afternoon or evening in most parts of the country, Rojas said.
However, he warned that sudden rains due to severe thunderstorm activity may cause flash floods or landslides in low-lying or mountainous areas.
As the southwest monsoon entered a period of lull almost a week ago, the Angat Dam in Bulacan has been adversely affected by the insufficiency of monsoon rains over the watershed area in Norzagaray.
As of Thursday morning, the water level at Angat Dam was 161.28 meters, down slightly by 8 centimeters from last Thursday’s 161.36 meters.
Its current level is still low, although it is a little over the 160-meter critical level.
Angat Dam needs at least 336 millimeters of one-time rainfall to recover to its minimum operating level of 180 meters.
To reach its 210-meter normal high water level, about 1,267 mm of rainfall, equivalent to four to five cyclones, will be needed.
Authorities however are hopeful that Angat Dam may fully recover by next month as the August-September period is the peak of southwest monsoon season and tropical cyclone activity.
Based on historical record, about four to eight cyclones usually form during August and September. The track of tropical cyclones during this period is mostly land-falling or crossing the landmass of Luzon, but still, some cyclones are recurving or do not directly affect the country. (Ellalyn De Vera-Ruiz)